Glossary Of Terms 4

Front 1

Open Register Light-Off
Procedure

Back 1

A procedure for purging and lighting off a boiler under specified, controlled conditions.

Front 2

Open-Shelf File Equipment

Back 2

Any shelving that does not enclose file compartments on six sides.

Front 3

Open Sprinkler

Back 3

A sprinkler that does not have actuators or heat-responsive elements.

Front 4

Open Sprinkler

Back 4

A sprinkler that does not have actuators or heat-responsive elements. [13, 2007]

Front 5

Open Station

Back 5

A station that is constructed in such a manner that it is open to the atmosphere, and smoke and heat are allowed to disperse directly into the atmosphere.

Front 6

Open Structure

Back 6

A structure that supports equipment and operations not enclosed within building walls.

Front 7

Open System Use (Material)

Back 7

Use of a solid or liquid hazardous material in a vessel or system that is continuously open to the atmosphere during normal operations and where vapors are liberated, or the product is exposed to the atmosphere during normal operations.

Front 8

Open System Use (Material)

Back 8

Use of a solid or liquid hazardous material in a vessel or system that is continuously open to the atmosphere during normal operations and where vapors are liberated, or the product is exposed to the atmosphere during normal operations. [5000, 2009]

Front 9

Open to the Atmosphere

Back 9

A space or compartment that has at least 15 in.2 of net open area directly exposed to the atmosphere for each cubic foot of net compartment volume (0.34 m2/m3).

Front 10

Open Water Spray Nozzle

Back 10

An open water discharge device that, when discharging water under pressure, will distribute the water in a specific, directional pattern.

Front 11

Open Wiring

Back 11

A form of protective wiring used across skylights and in areas not subject to damage consisting of bare, hard-drawn solid copper wire not larger than 24 AWG that is arranged in two perpendicular banks of horizontal runs of opposite polarity at intervals not exceeding
102 mm (4 in.).

Front 12

Open Wiring on Insulators

Back 12

An exposed wiring method using cleats, knobs, tubes, and flexible tubing for the protection and support of single insulated conductors run in or on buildings.

Front 13

Operable Part (Accessibility)

Back 13

A component of an element used to insert or withdraw objects, or to activate, deactivate, or adjust the element.

Front 14

Operating Area

Back 14

An area where mining of coal is taking place or area where construction is underway.

Front 15

Operating Building

Back 15

A building utilized in conjunction with the manufacture, transportation, or use of explosive materials.

Front 16

Operating Company

Back 16

The individual, partnership, corporation, public agency, or other entity that owns or operates a plant or site.

Front 17

Operating Device

Back 17

The car switch, pushbuttons, key or toggle switch(s), or other devices used to activate the operation controller.

Front 18

Operating Devices

Back 18

Mechanical, electrical, or pneumatic devices involved in the operation of a system.

Front 19

Operating Devices

Back 19

Mechanical, electrical, or pneumatic devices involved in the operation of a system. [17A, 2009]

Front 20

Operating Line

Back 20

A group of buildings, facilities, or workstations so arranged as to permit performance of the steps in the manufacture of an explosive or in the loading, assembly, modification, and maintenance of ammunition or devices containing explosive materials.

Front 21

Operating Pressure

Back 21

The highest pressure the hose should be used to in regular operation.

Front 22

Operating Pressure

Back 22

The pressure at which a system operates.

Front 23

Operating Pressure

Back 23

The varying pressure in a fuel supply container during normal container use.

Front 24

Operating Range

Back 24

The range between the maximum fuel input and minimum fuel input within which the burner flame can be maintained in a continuous and stable manner.

Front 25

Operating Supply

Back 25

The portion of the supply system that normally supplies the piping systems. The operating supply consists of a primary supply or a primary and secondary supply. (PIP)

Front 26

Operating System Software

Back 26

The basic operating system software that can be altered only by the equipment manufacturer or its authorized representative. Operating system software is sometimes referred to as firmware, BIOS, or executive program. (SIG-FUN)

Front 27

Operating Unit (Vessel) or
Process Unit (Vessel)

Back 27

The equipment in which a unit operation or unit process is conducted. (See also 3.3.245, Unit Operation or Unit Process.) [30, 2008]

Front 28

Operating Unit (Vessel) or
Process Unit (Vessel)

Back 28

The equipment in which a unit operation or unit process is conducted. (See also 3.3.49, Unit Operation or Unit Process.)

Front 29

Operation

Back 29

The performance of the laser or laser system over the full range of its intended functions (normal operation).

Front 30

Operational Check

Back 30

To determine the operational readiness of a component on a fire apparatus by observing the actual operation of the component.

Front 31

Operational Cycle

Back 31

The movement of the powered rescue tool from the fully closed or retracted position to the fully open or extended position and returned to the fully closed or retracted position.

Front 32

Operational Period

Back 32

The time scheduled for executing a given set of operation actions, as specified in the Incident Action Plan.

Front 33

Operational Tests

Back 33

An all-vehicle test conducted by the manufacturer to ensure that each vehicle is fully operational when it is delivered and to ensure that the original level of performance of the prototype vehicle has been maintained.

Front 34

Operations

Back 34

A general term that includes, but is not limited to, the use, transfer, storage, and processing of liquids.

Front 35

Operations

Back 35

A general term that includes, but is not limited to, the use, transfer, storage, and processing of liquids. [30, 2008]

Front 36

Operations

Back 36

The incident management section responsible for all tactical operations at the incident.

Front 37

Operations Control Center

Back 37

A dedicated operations center where the agency controls and coordinates the facility operations and from which communication is maintained with the agency’s supervisory and operating personnel and with participating agencies where required.

Front 38

Operations Control Center

Back 38

The operations center where the authority controls and coordinates the systemwide movement of passengers and trains from which communication is maintained with supervisory and operating personnel of the authority and with participating agencies when required.

Front 39

Operations Level Responders

Back 39

Persons who respond to hazardous materials/weapons of mass destruction (WMD) incidents for the purpose of implementing or supporting actions to protect nearby persons, the environment, or property from the effects of the release.

Front 40

Operations Level Responders Assigned Responsibilities for Biological Response

Back 40

Persons, competent at the operations level, who, at hazardous materials/weapons of mass destruction (WMD) incidents involving biological materials, are assigned to support the hazardous materials technician and other personnel, provide strategic and tactical recommendations to the on-scene incident commander, serve in a technical specialist capacity to provide technical oversight for operations, and act as a liaison between the hazardous materials technician, response personnel, and other outside resources regarding biological issues.

Front 41

Operations Level Responders Assigned Responsibilities for Chemical Response

Back 41

Persons, competent at the operations level, who, at hazardous materials/weapons of mass destruction (WMD) incidents involving chemical materials, are assigned to support the hazardous materials technician and other personnel, provide strategic and tactical recommendations to the on-scene incident commander, serve in a technical specialist capacity to provide technical oversight for operations, and act as a liaison between the hazardous material technician, response personnel, and other outside resources regarding chemical issues.

Front 42

Operations Level Responders Assigned Responsibilities for Radioactive Material Response

Back 42

Persons, competent at the operations level, who, at hazardous materials/weapons of mass destruction (WMD) incidents involving radioactive materials, are assigned to support the hazardous materials technician and other personnel, provide strategic and tactical recommendations to the on-scene incident commander, serve in a technical specialist capacity to provide technical oversight for operations, and act as a liaison between the hazardous material technician, response personnel, and other outside resources regarding radioactive material issues.

Front 43

Operations Level Responders Assigned to Perform Air Monitoring and Sampling

Back 43

Persons, competent at the operations level, who are assigned to implement air monitoring and sampling operations at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 44

Operations Level Responders Assigned to Perform Evidence Preservation and Sampling

Back 44

Persons, competent at the operations level, who are assigned to preserve forensic evidence, take samples, and/or seize evidence at hazardous materials/weapons of mass destruction (WMD) incidents involving potential violations of criminal statutes or governmental regulations.

Front 45

Operations Level Responders Assigned to Perform Mass Decontamination During Hazardous Materials/ Weapons of Mass Destruction (WMD) Incidents

Back 45

Persons, competent at the operations level, who are assigned to implement mass decontamination operations at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 46

Operations Level Responders Assigned to Perform Product Control

Back 46

Persons, competent at the operations level, who are assigned to implement product control measures at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 47

Operations Level Responders Assigned to Perform Technical Decontamination During Hazardous Materials/Weapons of Mass Destruction (WMD) Incidents

Back 47

Persons, competent at the operations level, who are assigned to implement technical decontamination operations at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 48

Operations Level Responders Assigned to Perform Victim Rescue/Recovery During Hazardous Materials/ Weapons of Mass Destruction (WMD) Incidents

Back 48

Persons, competent at the operations level, who are assigned to rescue and/or recover exposed and contaminated victims at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 49

Operations Level Responders Assigned to Respond to Illicit Laboratory Incidents

Back 49

Persons, competent at the operations level, who, at hazardous materials/weapons of mass destruction (WMD) incidents involving potential violations of criminal statutes specific to the illegal manufacture of methamphetamines, other drugs, or weapons of mass destruction (WMD), are assigned to secure the scene, identify the
laboratory/process, and preserve evidence.

Front 50

Operations Level Responders Assigned to Use Personal Protective Equipment During Hazardous Materials/ Weapons of Mass
Destruction (WMD) Incidents

Back 50

Persons, competent at the operations level, who are assigned to use of personal protective equipment at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 51

Operations Room

Back 51

The room in the communications center where alarms are received and processed and communications with emergency response personnel are conducted.

Front 52

Operations Section

Back 52

Section responsible for all tactical operations at the incident or planned event, including up to 5 branches, 25 divisions/groups, and
125 single resources, task forces, or strike teams.

Front 53

Operator

Back 53

An individual trained and responsible for the start-up, operation, shutdown, and emergency handling of the furnace and associated equipment.

Front 54

Operator

Back 54

A person qualified to operate a fire apparatus.

Front 55

Operator

Back 55

A person qualified to operate a fire apparatus. [1912, 2006]

Front 56

Operator

Back 56

The individual responsible for starting, stopping, and controlling an amusement ride or supervising a concession.

Front 57

Operator

Back 57

The person with overall responsibility for the operation and safety of a fireworks display.

Front 58

Operator Alert Device

Back 58

Any device, whether visual, audible, or both, installed in the driving compartment or at an operator’s panel, to alert the operator to either a pending failure, an occurring failure, or a situation that requires his or her immediate attention.

Front 59

Operator’s Panel

Back 59

A panel containing gauges, switches, instruments, or controls where an operator can visually monitor the applicable functions.

Front 60

Operator’s Panel

Back 60

A panel containing gauges, switches, instruments, or controls where an operator can visually monitor the applicable functions.
[1901, 2003]

Front 61

Optical Center

Back 61

The point specified by the optical warning device manufacturer of highest intensity when measuring the output of an optical warning device.

Front 62

Optical Center

Back 62

The point specified by the optical warning device manufacturer of highest intensity when measuring the output of an optical warning device. [1901, 2003]

Front 63

Optical Density of Smoke
(OD)

Back 63

Smoke obscuration described in terms of logarithmic ratio of initial light intensity to instantaneous light intensity.

Front 64

Optical Element

Back 64

Any individual lamp or other light emitter within an optical source.

Front 65

Optical Fiber Cable

Back 65

A factory assembly of one or more optical fibers having an overall covering.

Front 66

Optical Fiber Raceway

Back 66

A raceway for enclosing and routing optical fiber cables.

Front 67

Optical Power

Back 67

A unit of measure designated as candela-seconds/minute that combines the flash energy and flash rate of an optical source into one power measurement representing the true visual effectiveness of the emitted light.

Front 68

Optical Power

Back 68

A unit of measure designated as candela-seconds/minute that combines the flash energy and flash rate of an optical source into one power measurement representing the true visual effectiveness of the emitted light. [1901, 2003]

Front 69

Optical Source

Back 69

Any single, independently mounted, light-emitting component in a lighting system.

Front 70

Optical Source

Back 70

Any single, independently mounted, light-emitting component in a lighting system. [1901, 2003]

Front 71

Optical Warning Device

Back 71

A manufactured assembly of one or more optical sources.

Front 72

Optical Warning Device

Back 72

A manufactured assembly of one or more optical sources. [1901, 2003]

Front 73

Optimum Mixture

Back 73

A specific mixture of fuel and oxidant that yields the most rapid combustion at a specific measured quantity or that yields the lowest value of the minimum ignition energy or that produces the maximum deflagration pressure.

Front 74

Optional Standby Systems

Back 74

Those systems intended to supply power to public or private facilities or property where life safety does not depend on the performance of the system. Optional standby systems are intended to supply on-site generated power to selected loads either automatically or manually.

Front 75

Ordinary Hazard

Back 75

Contents that are likely to burn with moderate rapidity or to give off a considerable volume of smoke.

Front 76

Ordinary Hazard Contents

Back 76

Contents that are likely to burn with moderate rapidity or to give off a considerable volume of smoke. [5000:6.3.2.3]

Front 77

Ordinary Hazard (Group 1)

Back 77

Occupancies or portions of other occupancies where combustibility is low, quantity of combustibles is moderate, stockpiles of combustibles do not exceed 8 ft (2.4 m), and fires with moderate rates of heat release are expected.

Front 78

Ordinary Hazard (Group 2)

Back 78

Occupancies or portions of other occupancies where the quantity and combustibility of contents are moderate to high, where stockpiles of contents with moderate rates of heat release do not exceed 12 ft (3.7 m) and stockpile of contents with high rates of heat release do not exceed 8 ft (2.4 m).

Front 79

Ordinary (Moderate) Hazards

Back 79

Ordinary (moderate) hazard occupancies shall be classified as locations where the quantity and combustibility of Class A combustible materials and Class B flammables is moderate and fires with moderate rates of heat release are expected. These occupancies consist of fire hazards that only occasionally contain Class A combustible materials beyond normal anticipated furnishings and/or the total quantity of Class B flammables typically expected to be present is from 1 gal to 5 gal (3.8 L to 18.9 L) in any room or area. [10, 2007]

Front 80

Ore

Back 80

A mixture of valuable metal mineral and waste rock.

Front 81

Organic

Back 81

Being or composed of hydrocarbons or their derivatives, or matter of plant or animal origin. [ASTM D 1079: 2.1]

Front 82

Organic Coating

Back 82

A liquid mixture of film-forming binder resins, such as those based on alkyd, nitrocellulose, acrylic, polyester, or other chemistry, and flammable or combustible solvents, such as hydrocarbons, esters, ketones, and alcohols, that convert to a protective, decorative, or utilitarian finish.

Front 83

Organic Peroxide

Back 83

Any organic compound having a double oxygen or peroxy (-O-O-)
group in its chemical structure.

Front 84

Organic Peroxide

Back 84

Any organic compound having a double oxygen or peroxy (-O-O-)
group in its chemical structure. [432, 2002]

Front 85

Organic Peroxide

Back 85

A reactive organic compound that consists of an active double oxygen group (-O-O-) combined with an organic radical. Organic peroxides are derived from hydrogen peroxide in which one or both hydrogen atoms are replaced by a hydrocarbon or heterocyclic or acid radical.

Front 86

Organic Peroxide Formulation

Back 86

A pure organic peroxide or a mixture of one or more organic peroxides with one or more other materials in various combinations and concentrations.

Front 87

Organic Peroxide Formulation

Back 87

A pure organic peroxide or a mixture of one or more organic peroxides with one or more other materials in various combinations and concentrations. [432, 2002]

Front 88

Organic Peroxide Storage
Area

Back 88

An area used for the storage of organic peroxide formulations.

Front 89

Organic Peroxide Storage
Area

Back 89

An area used for the storage of organic peroxide formulations. [432,
2002]

Front 90

Organization

Back 90

Any governmental, private sector, or non-governmental association or group of persons with like objectives.

Front 91

Organization

Back 91

The entity that provides the direct management and supervision for emergency services response personnel.

Front 92

Organization

Back 92

The entity that provides the direct management and supervision for the emergency incident response personnel.

Front 93

Organization

Back 93

The entity that provides the direct management and supervision for the emergency services personnel.

Front 94

Organization

Back 94

The entity that provides the direct management and supervision for the industrial personnel.

Front 95

Organization

Back 95

The operational unit within the jurisdiction in which the Fire Marshal functions.

Front 96

Organization’s Area of
Specialization

Back 96

Any chemicals or containers used by the specialist employee’s employer.

Front 97

Orientation

Back 97

The plane in which the exposed face of the specimen is located during testing (i.e., horizontally facing the heater).

Front 98

Oriented Strand Board (OSB) Wood Structural Panel

Back 98

A mat-formed wood structural panel product composed of thin, rectangular wood strands or wafers arranged in oriented layers and bonded with waterproof adhesive.

Front 99

Orifice

Back 99

The opening in a cap, spud, or other device whereby the flow of gas is limited and through which the gas is discharged to the burner.

Front 100

Orifice Plate Proportioning

Back 100

This system utilizes an orifice plate(s) through which passes a specific amount of foam concentrate at a specific pressure drop across the orifice plate(s).

Front 101

Original Equipment
Manufacturer (OEM)

Back 101

Any vehicle manufacturer or importer that is subject to DOT
regulations and first introduces a vehicle for sale.

Front 102

Ornamental/Decorative
Sprinkler

Back 102

A sprinkler that has been painted or plated by the manufacturer.

Front 103

Ornamental/Decorative
Sprinkler

Back 103

A sprinkler that has been painted or plated by the manufacturer. [13,
2007]

Front 104

Oronasal Mask

Back 104

A device that fits over the mouth and nose and seals against the face for administering a breathing gas different from the chamber atmosphere.

Front 105

OSHA

Back 105

The Occupational Safety and Health Administration of the U.S. Department of Labor.

Front 106

OSHA

Back 106

The Occupational Safety and Health Administration of the U.S. Department of Labor. [55, 2003]

Front 107

OSHA

Back 107

The Occupational Safety and Health Administration of the U.S. Department of Labor. [55, 2005]

Front 108

Other Fire Detectors

Back 108

Devices that detect a phenomenon other than heat, smoke, flame, or gases produced by a fire. [72, 2007]

Front 109

Other Fire Detectors

Back 109

Devices that detect a phenomenon other than heat, smoke, flame, or gases produced by a fire. (SIG-IDS)

Front 110

Other Gas

Back 110

A gas that is not a corrosive gas, flammable gas, highly toxic gas, oxidizing gas, pyrophoric gas, toxic gas, or unstable reactive gas with a hazard rating of Class 2, Class 3, or Class 4 gas.

Front 111

Other Gas

Back 111

A gas that is not a corrosive gas, flammable gas, highly toxic gas, oxidizing gas, pyrophoric gas, toxic gas, or unstable reactive gas with a hazard rating of Class 2, Class 3, or Class 4 gas. [55, 2005]

Front 112

Other Structures

Back 112

Structures, other than buildings, for which loads are specified in
ASCE/SEI 7. [ASCE/SEI 7:1.2]

Front 113

Other Synthetic Foam
Concentrate

Back 113

A concentrate based on hydrocarbon surface active agents and listed as a wetting agent, foaming agent, or both. [11, 2005]

Front 114

Other Synthetic Foam
Concentrate

Back 114

A concentrate based on hydrocarbon surface active agents and listed as a wetting agent, foaming agent, or both.

Front 115

Outby

Back 115

A mining term that means in the direction away from the face of the mine or toward the outside of the mine; opposite of inby.

Front 116

Outcome

Back 116

The result, effects, or consequences of an emergency system encounter on the health status of the patient.

Front 117

Outdoor Area

Back 117

An area that is either outside the confines of a building, or an area sheltered from the elements by overhead cover, that is protected from weather exposure by an exterior wall that obstructs not more than
25 percent of the building boundary.

Front 118

Outdoor Area

Back 118

An area that is not an indoor area.

Front 119

Outdoor Cooking Appliance

Back 119

A gas-fired cooking appliance for outdoor use only that is provided with a means of support by the manufacturer and is connected to a fixed gas piping system.

Front 120

Outdoor Occupancy
Classification

Back 120

The system of defining the predominant operating characteristic of an outdoor operation that is not enclosed in a building or shelter for purposes of applying relevant sections of this code.

Front 121

Outer Boot

Back 121

A boot worn over other footwear components to meet requirements of this standard.

Front 122

Outer Boot

Back 122

A secondary boot worn over footwear item or a bootie that provides physical protection for the chemical-protective material in order for liquid splash-protective footwear to meet certain requirements of this standard.

Front 123

Outer Boot

Back 123

A secondary boot worn over the footwear ensemble element or bootie for the purpose of providing physical protection in order to meet the requirements of this standard.

Front 124

Outer Garment

Back 124

A garment worn over another garment component to meet the requirements of this standard.

Front 125

Outer Garment

Back 125

A secondary garment worn over another garment that provides physical protection for the chemical-protective material in order for liquid splash-protective garment to meet certain requirements of this standard.

Front 126

Outer Garment

Back 126

A secondary garment worn over the ensemble garment element for the purpose of providing [C]BRN protection.

Front 127

Outer Garment

Back 127

A secondary garment worn over the suit ensemble element for the purpose of providing physical protection in order to meet the requirements of this standard.

Front 128

Outer Glove

Back 128

A glove worn over another glove component for the purposes of providing additional protection to the wearer and to meet the requirements of this standard.

Front 129

Outer Glove

Back 129

A secondary glove worn over another glove that provides physical protection for the chemical-protective material in order for the liquid splash-protective glove to meet certain requirements of this standard.

Front 130

Outer Glove

Back 130

A secondary glove worn over the glove ensemble element for the purpose of providing CBRN protection.

Front 131

Outer Glove

Back 131

A secondary glove worn over the glove ensemble element for the purpose of providing physical protection in order to meet the requirements of this standard.

Front 132

Outer Perimeter

Back 132

That area outside of the inner perimeter that is secured for
immediate-support operational requirements, free of unauthorized or
uncontrolled interference.

Front 133

Outer Shell

Back 133

The outermost component of an element or item not including trim, hardware, reinforcing material, pockets, wristlet material, accessories, fittings, or suspension systems.

Front 134

Outer Shell

Back 134

The outermost component of an ensemble element or item, not including trim, hardware, reinforcing material, pockets, wristlet material, accessories, fittings, or suspension systems.

Front 135

Outfall Sewer

Back 135

A sewer that receives wastewater from a collecting system or from a treatment plant and carries it to a point of final discharge.

Front 136

Outgassing

Back 136

Release of adsorbed or absorbed ethylene oxide after sterilization.

Front 137

Outgassing

Back 137

The release of adsorbed or occluded gases or water vapor, usually by heating, such as from a vacuum tube or other vacuum system.

Front 138

Outlet

Back 138

A point on the wiring system at which current is taken to supply utilization equipment.

Front 139

Outlet

Back 139

A point on the wiring system at which current is taken to supply utilization equipment. [70, 2005]

Front 140

Outlet

Back 140

A point on the wiring system at which current is taken to supply utilization equipment. [70, 2008]

Front 141

Outline Lighting

Back 141

An arrangement of incandescent lamps, electric-discharge lighting, or other electrically powered light sources to outline or call attention to certain features such as the shape of a building or the decoration of a window.

Front 142

Out of Service

Back 142

Resources assigned to an incident but unable to respond for mechanical, rest, or personnel reasons.

Front 143

Out-of-Service

Back 143

The condition when an apparatus or component is not usable due to an unsafe or inoperable condition.

Front 144

Out-of-Service

Back 144

The deactivation of a component for any purpose, including repairs or inspections.

Front 145

Output

Back 145

The terminals where current, voltage, power, or driving force may be delivered by a circuit or device; the state or sequence of states occurring on a specific output channel; or the device or collective set of devices used for taking data out of another device.

Front 146

Output Circuit

Back 146

The conductors used to connect the fuel cell system to its electrical point of delivery. In the case of sites that have series- or
parallel-connected multiple units, the term output circuit also refers to the conductors used to electrically interconnect the fuel cell system(s).

Front 147

Outside Bucket Elevator (Leg)

Back 147

A bucket elevator that has less than 20 percent of the abovegrade leg height inside any enclosed structure.

Front 148

Outside or Outdoor
Installation

Back 148

A power system installation that is not located inside a building or that has only partial weather protection (maximum coverage of a roof and up to 50 percent enclosing walls).

Front 149

Outside Stair

Back 149

A stair with not less than one side open to the outer air.

Front 150

Overall Height, Length, and
Width

Back 150

The dimensions determined with the vehicle fully loaded and equipped, unless otherwise specified.

Front 151

Overall Length

Back 151

The length of a helicopter from the main rotor fully extended to the tail rotor fully extended.

Front 152

Over Bed Burner

Back 152

In a fluidized bed boiler, a warm-up burner located above the bed and firing over or into the bed.

Front 153

Overcrowded

Back 153

A situation where the occupant load exceeds the exit capacity or the posted occupant load.

Front 154

Overcurrent

Back 154

Any current in excess of the rated current of equipment or the ampacity of a conductor; it may result from an overload (see 3.3.117), short circuit, or ground fault.

Front 155

Overcurrent

Back 155

Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault.

Front 156

Overcurrent

Back 156

Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault. [70:100]

Front 157

Overcurrent

Back 157

Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault. [70, 2008]

Front 158

Overcurrent Protection Device

Back 158

A device, such as a fuse or circuit breaker, designed to interrupt the circuit when the current flow exceeds a predetermined value.

Front 159

Overfeed Stoker

Back 159

A stoker in which fuel is fed onto grates above the point of air admission to the fuel bed. Overfeed stoker grates include the following: (1) Front Feed, Inclined Grate — Fuel is fed from the front onto a grate inclined downward toward the rear of the stoker; (2) Chain or Traveling Grate — A moving endless grate that conveys fuel into and through the furnace where it is burned, after which it discharges the refuse; (3) Vibrating Grate — An inclined vibrating grate in which fuel is conveyed into and through the furnace where it is burned, after which it discharges the refuse.

Front 160

Overfilling

Back 160

Filling to a level above the maximum design liquid level.

Front 161

Overfilling Prevention Device

Back 161

A safety device that is designed to provide an automatic means to prevent the filling of a container in excess of the maximum permitted filling limit. [58, 2008]

Front 162

Overfilling Prevention Device
(OPD)

Back 162

A safety device that is designed to provide an automatic means to prevent the filling of a container in excess of the maximum permitted filling limit.

Front 163

Overfire Air

Back 163

Air supplied for combustion that is admitted into the furnace at a point above the burners or fuel bed.

Front 164

Overfire Air Port

Back 164

An opening in a furnace wall to enable the introduction of an overfire airstream.

Front 165

Overhaul

Back 165

A fire-fighting term involving the process of final extinguishment after the main body of a fire has been knocked down. All traces of fire must be extinguished at this time.

Front 166

Overhaul

Back 166

A fire fighting term involving the process of final extinguishment after the main body of a fire has been knocked down. All traces of fire must be extinguished at this time. [402, 2002]

Front 167

Overhaul

Back 167

The act of making a fire scene safe after the fire is controlled, such as extinguishing or removing burned material, checking inside walls and hidden spaces, etc. [402, 2002] (For wildland fires, see 3.3.72, Mop-up.)

Front 168

Overhaul

Back 168

The final stages of fire extinguishment, following knockdown of the main body of fire, during which pockets of fire are sought out to complete extinguishment.

Front 169

Overhaul (Rebuild)

Back 169

To make extensive repairs in order to restore a component to
like-new condition in accordance with the original manufacturer’s
specifications.

Front 170

Overhead

Back 170

The vessel equivalent of a ceiling.

Front 171

Overhead Gantry

Back 171

A structure consisting of horizontal framework, supported by vertical columns spanning above electrified truck parking spaces, that supports equipment, appliances, raceway, and other necessary components for the purpose of supplying electrical, HVAC, internet, communications, and other services to the spaces.

Front 172

Overhead (Marine)

Back 172

The unfinished area in the top of a room or compartment but not a ceiling.

Front 173

Overheat

Back 173

Destruction of material by heat without self-sustained combustion.

Front 174

Overlapping Astragal

Back 174

A horizontal or vertical molding attached to one leaf of a pair of doors.

Front 175

Overlays

Back 175

Decorative materials applied to decks for finishing purposes.

Front 176

Overload

Back 176

Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity that, when it persists for a sufficient length of time, would cause damage or dangerous overheating. A fault, such as a short circuit or a ground fault, is not an overload. [70:100]

Front 177

Overload

Back 177

Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity that, when it persists for a sufficient length of time, would cause damage or dangerous overheating. A fault, such as a short circuit or ground fault, is not an overload.

Front 178

Overload

Back 178

Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity that, when it persists for a sufficient length of time, would cause damage or dangerous overheating. A fault, such as a short circuit or ground fault, is not an overload. [70, 2008]

Front 179

Overload

Back 179

Operation of equipment in excess of normal, full-load rating or of a conductor in excess of rated ampacity that when it persists for a sufficient length of time would cause damage or dangerous overheating. An overload current is usually but might not always be combined to the normal intended conductive paths provided by conductors and other electrical components of an electrical circuit. Operation of the equipment or wiring under current flow conditions leading to temperatures in excess of the temperature rating of the equipment or wiring.

Front 180

Overnight Accommodations

Back 180

Accommodation space that has one or more berths, including beds or bunks, for use by passengers.

Front 181

Overpressure

Back 181

The pressure in a blast wave above atmospheric pressure, or a pressure within a containment structure that exceeds the maximum allowable working pressure of the containment structure.

Front 182

Overpressure Shutoff Device

Back 182

A device that shuts off the flow of LP-Gas vapor when the outlet pressure of the regulator reaches a predetermined maximum allowable pressure.

Front 183

Override

Back 183

A system or device used to neutralize a given action or motion.

Front 184

Override

Back 184

A system or device used to neutralize a given action or motion. [1901,
2003]

Front 185

Override (Aerial Device)

Back 185

The takeover of all aerial device movement control functions by an operator at a second control station.

Front 186

Overshoot

Back 186

The quantity of fuel passing through the valve after the deadman control is released.

Front 187

Overspray

Back 187

Any sprayed material that is not deposited on the intended object.

Front 188

Owner

Back 188

Any person, agent, firm, or corporation having a legal or equitable interest in a property, building, or structure.

Front 189

Owner/Operator

Back 189

The organization(s) with fiscal responsibility for the operation, maintenance, and profitability of the nuclear plant.

Front 190

Owner/Operator

Back 190

The organization with fiscal responsibility for the operation, maintenance, and profitability of the facility.

Front 191

Ownership

Back 191

Any property or building or its contents under legal control by the occupant, by contract, or by holding of a title or deed. (SIG-SSS)

Front 192

Owner’s Manual

Back 192

A pamphlet containing the manufacturer’s recommendations for the proper inspection and operation of the extinguishing system.

Front 193

Oxidant

Back 193

An oxygen-bearing chemical compound that supports combustion.

Front 194

Oxidant

Back 194

Any gaseous material that can react with a fuel (either gas, dust, or mist) to produce combustion.

Front 195

Oxidant

Back 195

Any gaseous material that can react with a fuel (either gas, dust, or mist) to produce combustion. [68, 2007]

Front 196

Oxidant Concentration
Reduction

Back 196

The technique of maintaining the concentration of an oxidant in a closed space below the concentration required for ignition to occur.

Front 197

Oxidation

Back 197

Reaction with oxygen either in the form of the element or in the form of one of its compounds.

Front 198

Oxidizer

Back 198

A material, other than a blasting agent or explosive, that readily yields oxygen or other oxidizing gas, or that readily reacts to promote or initiate combustion of combustible materials.

Front 199

Oxidizer

Back 199

Any material that readily yields oxygen or other oxidizing gas, or that readily reacts to promote or initiate combustion of combustible materials.

Front 200

Oxidizer

Back 200

Any material that readily yields oxygen or other oxidizing gas, or that readily reacts to promote or initiate combustion of combustible materials and can undergo a vigorous self-sustained decomposition due to contamination or heat exposure.

Front 201

Oxidizer

Back 201

Any material that readily yields oxygen or other oxidizing gas, or that readily reacts to promote or initiate combustion of combustible materials and can undergo a vigorous self-sustained decomposition due to contamination or heat exposure. For the purpose of this Code, oxidizers are classified according to the system listed in 3.3.179.1 through 3.3.179.4. [430, 2004]

Front 202

Oxidizer

Back 202

Usually an oxygen-rich, ionically bonded chemical that decomposes at moderate to high temperatures.

Front 203

Oxidizing Gas

Back 203

A gas that can support and accelerate combustion of other materials.

Front 204

Oxidizing Gas

Back 204

A gas that can support and accelerate combustion of other materials. [55, 2003]

Front 205

Oxidizing Gas

Back 205

A gas that can support and accelerate combustion of other materials. [55, 2005]

Front 206

Oxidizing Gas

Back 206

A gas that supports combustion. (HYP)

Front 207

Oxidizing Material

Back 207

Any material that readily yields oxygen or other oxidizing gas or that reacts chemically to oxidize combustible materials.

Front 208

Oxidizing Material

Back 208

Any solid or liquid that readily yields oxygen or other oxidizing gas or that readily reacts to oxidize combustible material.

Front 209

Oxygen

Back 209

A chemical element that, at normal atmospheric temperatures and pressures, exists as a colorless, odorless, and tasteless gas and comprises about 21 percent by volume of the earth’s atmosphere.

Front 210

Oxygen

Back 210

An element that, at atmospheric temperatures and pressures, exists as a colorless, odorless, tasteless gas. (GAS)

Front 211

Oxygen Consumption
Principle

Back 211

The expression of the relationship between the mass of oxygen consumed during combustion and the heat released.

Front 212

Oxygen Consumption
Principle

Back 212

The expression of the relationship between the mass of oxygen consumed during combustion and the heat released. [271, 2004]

Front 213

Oxygen Deficiency

Back 213

Insufficiency of oxygen to support combustion. (See also 3.3.176, Ventilation-Controlled Fire.)

Front 214

Oxygen-Deficient Atmosphere

Back 214

Air atmospheres containing less than 19.5 percent oxygen by volume at one standard atmosphere pressure.

Front 215

Oxygen Delivery Equipment

Back 215

Any device used to transport and deliver an oxygen-enriched atmosphere to a patient. (GAS)

Front 216

Oxygen-Enriched Atmosphere

Back 216

Air atmospheres containing more than 23.5 percent oxygen by volume at one standard atmosphere pressure.

Front 217

Oxygen-Enriched Atmosphere

Back 217

Air atmospheres containing more than 23.5 percent oxygen by volume at one standard atmosphere pressure. [1670, 2004]

Front 218

Oxygen-Enriched Atmosphere

Back 218

For the purpose of this standard, and only for the purpose of this standard, an atmosphere in which the concentration of oxygen exceeds 23.5 percent by volume. (HYP)

Front 219

Oxygen-Enriched Atmosphere
(OEA)

Back 219

Air atmospheres containing more than 23.5 percent oxygen by volume at one standard atmosphere pressure. [1670, 2004]

Front 220

Oxygen-Enriched Atmosphere
(OEA)

Back 220

An atmosphere in which the concentration exceeds 21 percent by volume or its partial pressure exceeds 21.3 kPa (160 torr).
[53, 2004]

Front 221

Oxygen-Enriched Atmosphere
(OEA)

Back 221

An atmosphere in which the concentration of oxygen exceeds
21 percent by volume or its partial pressure exceeds 21.3 kPa (160
torr).

Front 222

Oxygen Hood

Back 222

A device encapsulating a patient’s head and used for a purpose similar to that of a mask. (See also 3.3.105, Mask.) (HYP)

Front 223

Oxygen Hood

Back 223

A device encapsulating the subject’s or patient’s head with a seal at
the neck, for administering breathing gas different from the chamber
atmosphere. (See 3.3.13, Oronasal Mask.)

Front 224

Oxygen Index

Back 224

The minimum concentration of oxygen, expressed as percent by volume, in a mixture of oxygen and nitrogen that will just support combustion of a material under conditions of ASTM D 2863, Method for Measuring the Minimum Oxygen Concentration to Support Candle-like Combustion of Plastics (Oxygen Index). [99, 2005 (HYP)]

Front 225

Oxygen Index

Back 225

The minimum concentration of oxygen, expressed as percent by volume, in a mixture of oxygen and nitrogen that will just support combustion of a material under conditions of ASTM D 2863, Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index). (HYP)

Front 226

Oxygen Indicator

Back 226

A device capable of detecting and measuring concentrations of oxygen in the atmosphere.

Front 227

Oxygen Indicator

Back 227

An instrument that is capable of detecting, measuring, and monitoring concentrations of oxygen in the atmosphere.

Front 228

Oxygen Passivation

Back 228

A controlled process that exposes the metal powder to oxygen with the goal of forming an oxide of the metal on the particle surface.

Front 229

Oxygen Toxicity (Hyperbaric)

Back 229

Physical impairment resulting from breathing gaseous mixtures containing oxygen-enriched atmospheres at elevated partial pressures for extended periods of time. (HYP)

Front 230

Oxygen Toxicity (Hypobaric)

Back 230

Physical impairment resulting from breathing oxygen-enriched gas mixtures at normal or elevated pressures for extended periods of time. The extent and nature of the toxicities are direct functions of oxygen partial pressure and duration of exposure.

Front 231

Ozonation

Back 231

The process of contacting wastewater or air with ozone for the purpose of disinfection, oxidation, or odor control.

Front 232

Package

Back 232

The wrapping or enclosure directly containing a glove or face protection device.

Front 233

Package

Back 233

The wrapping or enclosure directly containing the technical rescue incidents element.

Front 234

Packaged Fireworks
Merchandise

Back 234

A consumer fireworks device or group of consumer fireworks devices that has been packaged within an unperforated container or packaging material by the manufacturer, distributor, or seller for retail display and sale as a unit.

Front 235

Packaged Fireworks
Merchandise

Back 235

A consumer fireworks device or group of consumer fireworks devices that has been packaged within an unperforated container or packaging material by the manufacturer, distributor, or seller for retail display and sale as a unit. [1124, 2006]

Front 236

Packaged Spa or Hot Tub
Equipment Assembly

Back 236

A factory-fabricated unit consisting of water-circulating, heating, and control equipment mounted on a common base, intended to operate a spa or hot tub. Equipment can include pumps, air blowers, heaters, lights, controls, sanitizer generators, and so forth.

Front 237

Packaged Therapeutic Tub or Hydrotherapeutic Tank Equipment Assembly

Back 237

A factory-fabricated unit consisting of water-circulating, heating, and control equipment mounted on a common base, intended to operate a therapeutic tub or hydrotherapeutic tank. Equipment can include pumps, air blowers, heaters, lights, controls, sanitizer generators, and so forth.

Front 238

Package Product Label

Back 238

The product label that is printed on or attached to a package containing one or more compliant products. (See also 3.3.66, Product Label.)

Front 239

Packaging

Back 239

A commodity wrapping, cushioning, or container.

Front 240

Packaging

Back 240

A commodity wrapping, cushioning, or container. [13, 2007]

Front 241

Packaging

Back 241

Any container that holds a material (hazardous or nonhazardous).

Front 242

Packaging

Back 242

The process of securing a victim in a transfer device, with regard to existing and potential injuries or illness, so as to prevent further harm during movement.

Front 243

Packaging (Patient Packaging)

Back 243

The process of securing a subject in a transfer device, with regard to existing and potential injuries/illness, so as to avoid further harm during movement.

Front 244

Packaging Type — Cartoned

Back 244

Aerosol cans packaged in at least a single layer of corrugated cardboard. The cardboard must cover at least the top, bottom, and two complete sides of the unit. The two other sides must be at least
60 percent covered.

Front 245

Packaging Type — Display Cut

Back 245

Aerosol cans packaged in at least a single layer of corrugated cardboard where the top and parts of the face and sides of the carton have been removed for retail sales.

Front 246

Packaging Type — Uncartoned

Back 246

Aerosol cans arranged on slip sheets or trays shrink-wrapped together in packs on a pallet or packaging that does not meet the definition of cartoned.

Front 247

Paddock Area

Back 247

A secured or restricted area in which competition and support vehicles are parked or staged, or both, and in which work is performed.

Front 248

Pager

Back 248

A compact radio receiver used for providing one-way communication or limited digital/data two-way communication.

Front 249

Paging System

Back 249

A system intended to page one or more persons by such means as voice over loudspeaker, coded audible signals or visible signals, or lamp annunciators. (SIG-PRO)

Front 250

Paint Hangar

Back 250

An aircraft hangar that is occupied primarily for the application of paint or other flammable or combustible liquids involving an entire aircraft or major portions of an aircraft.

Front 251

Paint Removal

Back 251

The process of softening existing paint by applying appropriate solvents and spraying or brushing away the residue.

Front 252

Palletized Storage

Back 252

Storage of commodities on pallets or other storage aids that form horizontal spaces between tiers of storage.

Front 253

Palletized Tire Storage

Back 253

Storage on portable racks of various types utilizing a conventional pallet as a base.

Front 254

Palletized Tire Storage

Back 254

Storage on portable racks of various types utilizing a conventional pallet as a base. [13, 2007]

Front 255

Panel

Back 255

A collection of modules mechanically fastened together, wired, and designed to provide a field-installable unit.

Front 256

Panelboard

Back 256

An assembly of devices for the purpose of controlling or distributing, or both, electrical power on a boat.

Front 257

Panelboard

Back 257

A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices, and equipped with or without switches for the control of light, heat, or power circuits; designed to be placed in a cabinet or
cutout box placed in or against a wall, partition, or other support; and accessible only from the front.

Front 258

Panelboard

Back 258

A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices, and equipped with or without switches for the control of light, heat, or power circuits; designed to be placed in a cabinet or
cutout box placed in or against a wall, partition, or other support; and accessible only from the front. [70, 2008]

Front 259

Panel Team

Back 259

The group of individuals, with established communications and leadership, assigned to construct (if necessary), move, place, and manage panels (traditional sheeting panels) both inside and outside the space, trench, or excavation.

Front 260

Panic Hardware

Back 260

A door-latching assembly incorporating an actuating member or bar that releases the latch bolt upon the application of a force in the direction of egress travel.

Front 261

Paper

Back 261

Felted sheets made from natural fibrous materials, usually vegetable but sometimes mineral or animal, and formed on a fine wire screen by means of water suspension.

Front 262

Paper (General Term)

Back 262

The term for all kinds of felted sheets made from natural fibrous materials, usually vegetable but sometimes mineral or animal, and formed on a fine wire screen from water suspension.

Front 263

Parallel Telephone System

Back 263

A telephone system in which an individually wired circuit is used for each fire alarm box. (SIG-SSS)

Front 264

Paramedic

Back 264

A medical technician who has received extensive training in advanced life support and emergency medicine. These personnel are usually permitted to administer intravenous fluids and other drugs that can arrest a life-threatening physiological condition.

Front 265

Paramedic

Back 265

A person who has been certified as an EMT-paramedic and is qualified to perform body-invasive techniques, defibrillation, and similar procedures.

Front 266

Parameter Uncertainty

Back 266

Uncertainty in the predictions of a model due to uncertainties in the numerical values of the model parameters.

Front 267

Parapet

Back 267

That part of a wall entirely above the roofline.

Front 268

Parbuckling

Back 268

A technique for moving a load utilizing a simple 2:1 mechanical advantage system in which the load is placed inside a bight formed in a length of rope, webbing, tarpaulin, blanket, netting, and so forth that creates the mechanical advantage, rather than being attached to the outside of the bight with ancillary rope rescue hardware.

Front 269

Parenteral

Back 269

Piercing of the mucous membranes or the skin barrier due to such events as needle sticks, human bites, cuts, and abrasions.

Front 270

Park Electrical Wiring Systems

Back 270

All of the electrical wiring, luminaires, equipment, and appurtenances related to electrical installations within a mobile home park, including the mobile home service equipment.

Front 271

Parking Area

Back 271

An area used for parking of occupant vehicles that is not intended to serve as storage of vehicles.

Front 272

Parking Garage

Back 272

Garage used solely for parking motor vehicles.

Front 273

Parking Structure

Back 273

A building, structure, or portion thereof used for the parking of motor vehicles.

Front 274

Parking Structure

Back 274

A building, structure, or portion thereof used for the parking, storage, or both, of motor vehicles.

Front 275

Parking Structure

Back 275

A building, structure, or portion thereof used for the parking, storage, or both, of motor vehicles. [88A, 2007]

Front 276

Park Trailer

Back 276

A unit that is built on a single chassis mounted on wheels and has a gross trailer area not exceeding 37 m2 (400 ft2) in the set-up mode.

Front 277

Partial Height Partition

Back 277

A partition with a height not greater than 72 in. (1830 mm).

Front 278

Partial Loss of Flame

Back 278

Loss of flame at any of the separate flame envelopes or burners while flame is maintained at any of the other flame envelopes or burners.

Front 279

Partial Pressure

Back 279

The pressure, in absolute units, exerted by a particular gas in a gas mixture. [99, 2005 (HTP)]

Front 280

Partial Pressure

Back 280

The pressure, in absolute units, exerted by a particular gas in a gas mixture. [99, 2005]

Front 281

Partial Pressure

Back 281

The pressure, in absolute units, exerted by a particular gas in a gas mixture. (HYP)

Front 282

Participant

Back 282

Any student, instructor, safety officer, visitor, or other person who is involved in the live fire training evolution within the operations area.

Front 283

Participating Agency

Back 283

A public, quasipublic, or private agency that has agreed to cooperate with and assist the authority during an emergency.

Front 284

Particleboard

Back 284

A generic term for a panel primarily composed of cellulosic materials, generally in the form of discrete pieces or particles, as distinguished from fibers, that are combined with synthetic resin or other suitable bonding system by a process in which the interparticle bond is created by the bonding system under heat and pressure.

Front 285

Particulate Density

Back 285

The density of solid particulate in grams per cubic meter after discharge of the aerosol system at the design application density. This information is used to assess the degrees of visibility obscuration and the potential health effects of accidental exposure to the agent.

Front 286

Particulates

Back 286

Finely divided solid matter that is dispersed in air.

Front 287

Particulates

Back 287

Solid matter that is dispersed in air as a mixture.

Front 288

Particulates

Back 288

Solid matter that is dispersed in air as a mixture. [1994, 2007]

Front 289

Particulates

Back 289

Solid matter that is dispersed in air as a mixture. For the purpose of this standard, particulates do not include aerosol, or suspended liquid droplets in air. Aerosols are considered liquids.

Front 290

Partition

Back 290

A nonstructural interior wall that spans horizontally or vertically from support to support. The supports may be the basic building frame, subsidiary structural members, or other portions of the partition system. [ASCE/SEI 7:11.2]

Front 291

Partition System

Back 291

A part of one control unit that through software acts as a separate control unit.

Front 292

PASS

Back 292

Acronym for Personal Alert Safety Systems. See also 3.3.14, Personal
Alert Safety Systems (PASS).

Front 293

Passageway

Back 293

A corridor or hallway.

Front 294

Passageway

Back 294

A corridor or hallway. [1405, 2006]

Front 295

Pass Door

Back 295

A swinging door in a sliding door for personnel use.

Front 296

Passenger

Back 296

An individual carried on a vessel who is not one of the following: (1) an owner, a representative of the owner, a charterer, or a representative of a charterer; (2) the vessel’s master; or (3) a member of the vessel’s crew who is paid for onboard services.

Front 297

Passenger Aircraft

Back 297

An aircraft designed for the primary function of carrying passengers.

Front 298

Passenger Rail System

Back 298

A transportation system, utilizing a rail guideway, operating on right-of-way for the movement of passengers within and between metropolitan areas, and consisting of its rail guideways, passenger rail vehicles, and other rolling stock; power systems; buildings; maintenance facilities; stations; passenger rail vehicle yard; and other stationary and movable apparatus, equipment, appurtenances, and structures.

Front 299

Passenger Rail Vehicle

Back 299

A vehicle and/or power unit running on rails used to carry passengers and crew.

Front 300

Passivation

Back 300

A controlled process by which a barrier coating is placed on the surface of the metal to inhibit reaction.

Front 301

Passive Cooling

Back 301

The process of using natural evaporative cooling (e.g., sweating, doffing personal protective equipment, moving to a cool environment) to reduce elevated core body temperature.

Front 302

Passive Cooling

Back 302

The process of using natural evaporative cooling (e.g., sweating, doffing personal protective equipment) to reduce elevated core body temperature.

Front 303

Passive Fire Protection — Coating Material

Back 303

A material that is applied to a substrate and is designed to protect it from thermal effects.

Front 304

Passive Fire Protection — Panel Material

Back 304

A material in the form of a panel or sheet, including pre-formed components, which are designed to stand alone prior to application to a steel substrate.

Front 305

Passive Fire Protection (PFP) Material

Back 305

A material that is applied to a substrate and designed to protect it from the thermal effects of a fire.

Front 306

Passive Search Measures

Back 306

Search efforts that do not require active searching by the rescuers.

Front 307

Passive Sub-Slab
Depressurization System

Back 307

A system designed to achieve lower sub-slab air pressure relative to indoor air pressure by use of a vent pipe routed through the conditioned space of a building and connecting the sub-slab area with outdoor air, thereby relying on the convective flow of air upward in the vent to draw air from beneath the slab.

Front 308

Pass-Through

Back 308

An enclosure, installed in a wall and with a door on each side, that allows chemicals, production materials, equipment, and parts to be transferred from one side of the wall to the other.

Front 309

Patch Kettle

Back 309

Any pot or container with a capacity of less than 6 gal (22.7 L) used for preheating tar, asphalt, pitch, or similar substances for the repair of roofs, streets, floors, pipes, or similar objects.

Front 310

Pathogens

Back 310

Microorganisms such as a bacteria, virus, or fungus that is capable of causing disease.

Front 311

Path (Pathways)

Back 311

Any conductor, optic fiber, radio carrier, or other means for transmitting fire alarm system information between two or more locations. (SIG-FUN)

Front 312

Patient

Back 312

An emergency responder who is provided emergency medical care during the rehabilitation process.

Front 313

Patient

Back 313

An individual, living or dead, whose body fluids, tissues, or organs could be a source of exposure to the member.

Front 314

Patient

Back 314

Any person or persons requiring or requesting a BLS/ALS evaluation or intervention at the scene of a hazardous materials/WMD incident.

Front 315

Patient Bed Location

Back 315

The location of a patient sleeping bed, or the bed or procedure table of a critical care area. [99:3.3.137]

Front 316

Patient Bed Location

Back 316

The location of a patient sleeping bed, or the bed or procedure table of a critical care area. (ELS)

Front 317

Patient Care Area

Back 317

Any portion of a health care facility wherein patients are intended to be examined or treated. Areas of a health care facility in which patient care is administered are classified as general care areas or critical care areas. The governing body of the facility designates these areas in accordance with the type of patient care anticipated and with the following definitions of the area classification.

Front 318

Patient Care Area

Back 318

Any portion of a health care facility wherein patients are intended to be examined or treated. (ELE)

Front 319

Patient-Care-Related Electrical
Appliance

Back 319

An electrical appliance that is intended to be used for diagnostic, therapeutic, or monitoring purposes in a patient care vicinity. (ELE)

Front 320

Patient Care Vicinity

Back 320

A space, within a location intended for the examination and treatment of patients, extending 1.8 m (6 ft) beyond the normal location of the bed, chair, table, treadmill, or other device that supports the patient during examination and treatment and extending vertically to 2.3 m (7 ft 6 in.) above the floor. (ELE)

Front 321

Patient Care Vicinity

Back 321

In an area in which patients are normally cared for, the patient care vicinity is the space with surfaces likely to be contacted by the patient or an attendant who can touch the patient. Typically in a patient room, this encloses a space within the room not less than 1.8 m (6 ft) beyond the perimeter of the bed in its nominal location, and extending vertically not less than 2.3 m (71/2 ft) above the floor. [99:3.3.140]

Front 322

Patient Contact

Back 322

The time that responding personnel first arrived at the patient’s side.

Front 323

Patient Equipment Grounding
Point

Back 323

A jack or terminal that serves as the collection point for redundant grounding of electrical appliances serving a patient care vicinity or for grounding other items in order to eliminate electromagnetic interference problems. [99:3.3.141]

Front 324

Patient Equipment Grounding
Point

Back 324

A jack or terminal that serves as the collection point for redundant grounding of electric appliances serving a patient care vicinity or for grounding other items in order to eliminate electromagnetic interference problems. (ELE)

Front 325

Patient Evacuation Team

Back 325

As related to caves, a specific combination of resources with a leader, personnel, and common equipment assembled for the purpose of evacuating the patient from the cave.

Front 326

Patient Lead

Back 326

Any deliberate electrical connection that can carry current between an appliance and a patient. (ELE)

Front 327

Patient Medical Gas

Back 327

Piped gases such as oxygen, nitrous oxide, helium, carbon dioxide, and medical air that are used in the application of human respiration and the calibration of medical devices used for human respiration. (PIP)

Front 328

Patrol

Back 328

To systematically observe and check a length of control line during or after its construction to prevent breakovers (slopovers), control spot fires, or extinguish overlooked hot spots.

Front 329

Pawls

Back 329

Devices attached to a fly section(s) to engage ladder rungs near the beams of the section below for the purpose of anchoring the fly section(s).

Front 330

Pawls

Back 330

Devices attached to a fly section(s) to engage ladder rungs near the beams of the section below for the purpose of anchoring the fly section(s). [1931:3.3]

Front 331

Peak

Back 331

An integral part of the helmet shell extending forward over the eyes only.

Front 332

Pellet Fuel

Back 332

A solid processed fuel of specified size and composition capable of being fed to the appliance combustion system at a controlled rate.

Front 333

Pellet Fuel-Burning Appliance

Back 333

A closed combustion pellet vent or chimney-connected solid pellet fuel-burning appliance incorporating a fuel-feed control mechanism.

Front 334

Pellet Vent

Back 334

A venting system composed of listed, factory-built components assembled in accordance with the manufacturer’s instructions for conveying flue gases from a listed pellet fuel-burning appliance to the outside atmosphere.

Front 335

Pendent Sprinkler

Back 335

A sprinkler designed to be installed in such a way that the water stream is directed downward against the deflector.

Front 336

Pendent Sprinkler

Back 336

A sprinkler designed to be installed in such a way that the water stream is directed downward against the deflector. [13, 2007]

Front 337

Penetrating Nozzle

Back 337

An appliance designed to penetrate the skin of an aircraft and inject extinguishing agent.

Front 338

Penetration

Back 338

The movement of a material through a suit’s closures, such as zippers, buttonholes, seams, flaps, or other design features of chemical-protective clothing, and through punctures, cuts, and tears.

Front 339

Penthouse

Back 339

Enclosed structure other than a roof structure located on a roof, extending not more than 12 ft (3660 mm) above a roof.

Front 340

Percent Grade

Back 340

The ratio of the change in elevation to the horizontal distance traveled multiplied by 100.

Front 341

Percent Inward Leakage

Back 341

The ratio of vapor concentration inside the ensemble versus the vapor concentration outside the ensemble expressed as a percentage.

Front 342

Performance

Back 342

The enactment of a musical, dramatic, operatic, or other entertainment production.

Front 343

Performance Area

Back 343

The stage and audience seating area associated with a temporary stage structure, whether indoors or outdoors, constructed of scaffolding, truss, platforms, or similar devices, that is used for the presentation of theatrical or musical productions or for public presentations.

Front 344

Performance-Based Approach

Back 344

A performance-based approach relies upon measurable (or calculable) outcomes (i.e., performance results) to be met but provides more flexibility as to the means of meeting those outcomes. A performance-based approach is one that establishes performance and results as the primary basis for decision-making and incorporates
the following attributes: (1) Measurable or calculable parameters exist to monitor the system, including facility performance; (2) Objective criteria to assess performance are established based on risk insights, deterministic analyses, and/or performance history; (3) Plant operators have the flexibility to determine how to meet established performance criteria in ways that will encourage and reward improved outcomes; and (4) A framework exists in which the failure to meet a performance criteria, while undesirable, will not in and of itself constitute or result in an immediate safety concern.

Front 345

Performance-Based Design
Approach

Back 345

A design process where fire safety solutions are designed to achieve a specified goal for a specified use or application. [914, 2001]

Front 346

Performance-Based Design
Approach

Back 346

A design process whose fire safety solutions are designed to achieve a specified goal for a specified use or application.

Front 347

Performance Criteria

Back 347

Specific measurable or calculable parameters for systems and features that are quantified and described in engineering terms.

Front 348

Performance Criteria

Back 348

Threshold values on measurement scales that are based on quantified performance objectives.

Front 349

Performance Criteria

Back 349

Threshold values on measurement scales that are based on quantified performance objectives. [101, 2003]

Front 350

Performance Criteria

Back 350

Threshold values on measurement scales that are based on quantified performance objectives. [101, 2009]

Front 351

Performance Standards

Back 351

Minimum requirements for knowledge and skills that must be provided to or demonstrated by the industrial fire brigade member upon completion of a training or education session.

Front 352

Performance Standards

Back 352

Minimum requirements for knowledge that must be provided to and/or demonstrated by the individual upon completion of a training program.

Front 353

Performance Tests

Back 353

Tests made after a fire apparatus has been put into service to determine if its performance meets predetermined specifications or standards.

Front 354

Performer

Back 354

Any person active in a performance during which pyrotechnics are used and who is not part of the audience or support personnel.

Front 355

Peril

Back 355

An active cause of loss, such as a hurricane, fire, or accident.

Front 356

Perimeter Protection

Back 356

A scheme of protection that uses devices to detect intrusion at points of entry into a protected area such as doors, windows, and skylights.

Front 357

Periodic

Back 357

Occurring or recurring at regular intervals, as determined by the individual organization (e.g., weekly, monthly, quarterly, semiannually, yearly).

Front 358

Periodic Duty

Back 358

Intermittent operation in which the load conditions are regularly recurrent.

Front 359

Peripheral Vapor Containment

Back 359

A system that cools the perimeter of a vapor degreaser tank near its top for the purpose of condensing a saturated vapor blanket from boiling flammable solvent.

Front 360

Permanent

Back 360

Any object that is intended to remain in place for more than 180 days in any consecutive 12-month period. (See also 3.3.19.)
[5000, 2006]

Front 361

Permanent

Back 361

Any object that is intended to remain in place for more than 180 days in any consecutive 12-month period. (See also 3.3.607.12, Permanent Structure.)

Front 362

Permanent

Back 362

As applied to buildings or structures: a building or structure affixed to a foundation on a site and having fixed utility connections, that is intended to remain on the site for more than 180 consecutive
calendar days.

Front 363

Permanent Amusement
Attraction

Back 363

Ride devices, entertainment devices, or combination thereof, that are installed so that portability or relocation is impracticable.

Front 364

Permanent Deformation

Back 364

That deformation remaining in any part of a ladder or its components after all test loads have been removed from the ladder.

Front 365

Permanent Deformation

Back 365

That deformation remaining in any part of a ladder or its components after all test loads have been removed from the ladder. [1931:3.3]

Front 366

Permanent Installation

Back 366

An installation of flame effects for which the governing use permit has a duration longer than 180 days.

Front 367

Permanently Installed

Back 367

Securely fastened so that tools must be used for removal.

Front 368

Permanently Installed Decorative Fountains and Reflection Pools

Back 368

Those that are constructed in the ground, on the ground, or in a building in such a manner that the fountain cannot be readily disassembled for storage, whether or not served by electrical circuits of any nature. These units are primarily constructed for their aesthetic value and are not intended for swimming or wading.

Front 369

Permanently Installed Swimming, Wading, Immersion, and Therapeutic Pools

Back 369

Those that are constructed in the ground or partially in the ground, and all others capable of holding water in a depth greater than 1.0 m (42 in.), and all pools installed inside of a building, regardless of water depth, whether or not served by electrical circuits of any nature.

Front 370

Permanent Record

Back 370

A record that has been determined by the responsible party to have sufficient value to warrant its permanent retention and preservation.

Front 371

Permanent Structure

Back 371

A building or structure that is intended to remain in place for a period of more than 180 days in any consecutive 12-month period.

Front 372

Permanent Visual Record
(Recording)

Back 372

An immediately readable, not easily alterable, print, slash, or punch record of all occurrences of status change. (SIG-SSS)

Front 373

Permeation

Back 373

A chemical action involving the movement of chemicals, on a molecular level, through intact material.

Front 374

Permissible Equipment

Back 374

A completely assembled machine or accessory for which formal approval has been issued, allowing operation in a potentially explosive methane and air-mixture environment.

Front 375

Permissible Exposure Limit
(PEL)

Back 375

The maximum permitted 8-hour, time-weighted average concentration of an airborne contaminant.

Front 376

Permissible Exposure Limit
(PEL)

Back 376

The maximum permitted 8-hour, time-weighted average concentration of an airborne contaminant. [5000, 2009]

Front 377

Permissible Exposure Limit
(PEL)

Back 377

The maximum permitted 8-hour, time-weighted average concentration of an airborne contaminant. [55, 2005]

Front 378

Permit

Back 378

A document issued by the AHJ for the purpose of authorizing performance of a specified activity. Unless otherwise specified, the word permit, when used in this document, refers to a use permit.

Front 379

Permit

Back 379

A document issued by the authority having jurisdiction for the purpose of authorizing performance of a specified activity.

Front 380

Permit

Back 380

A document issued by the authority having jurisdiction for the purpose of authorizing performance of a specified activity.
[1, 2009]

Front 381

Permit Authorizing Individual
(PAI)

Back 381

The individual designated by management to authorize hot work.

Front 382

Permit Required Confined
Space

Back 382

For purposes of tank entry, cleaning, or repair, a tank that meets all three of the requirements for a confined space (see 3.3.6) and also has one or more of the following four characteristics: (1) contains or has the potential to contain a hazardous substance, (2) contains a material with the potential to engulf an entrant, (3) has an internal configuration such that an entrant could become trapped or asphyxiated by inwardly converging walls or floor that slope downwards, tapering to small cross sections, (4) contains any other recognized serious safety or health hazard. (See also 3.3.6, Confined Space, and 3.3.18, Nonconfined Space.)

Front 383

Permitted

Back 383

Allowed or acceptable, and not requiring a permit (a document granting permission) to be secured.

Front 384

Permitted

Back 384

Allowed or acceptable, and not requiring a permit (a document granting permission) to be secured. [58, 2008]

Front 385

Permittee

Back 385

The person or persons who are responsible for obtaining the required permits for a production that includes the use of pyrotechnics.

Front 386

Peroxide-Forming Chemical

Back 386

A chemical that, when exposed to air, forms explosive peroxides that are shock sensitive, pressure sensitive, or heat sensitive.

Front 387

Person

Back 387

An individual, a firm, a copartnership, a corporation, a company, an association, or a joint-stock association, including any trustee, receiver, assignee, or personal representative thereof.

Front 388

Person

Back 388

An individual, firm, partnership, corporation, company, association, or joint-stock association, including any trustee, receiver, assignee, or personal representative thereof. [5000, 2006]

Front 389

Person

Back 389

Any individual, firm, copartnership, corporation, company, association, or joint-stock association, including any trustee, receiver, assignee, or personal representative thereof.

Front 390

Person

Back 390

Any individual, firm, copartnership, corporation, company, association, or joint-stock association, including any trustee, receiver, assignee, or personal representative thereof. [1124:1.4]

Front 391

Person

Back 391

Any individual, firm, copartnership, corporation, company, association, or joint-stock association, including any trustee, receiver, assignee, or personal representative thereof. [5000:3.3]

Front 392

Person

Back 392

Any individual, firm, partnership, corporation, company, association, or joint-stock association, including any trustee, receiver, assignee, or personal representative thereof.

Front 393

Personal Alert Safety Systems
(PASS)

Back 393

A device that continually senses for lack of movement of the wearer to automatically activate the alarm signal indicating the wearer is in need of assistance. The device can also be manually activated to trigger the alarm signal.

Front 394

Personal Care

Back 394

The care of residents who do not require chronic or convalescent medical or nursing care.

Front 395

Personal Care

Back 395

The care of residents who do not require chronic or convalescent medical or nursing care. [101, 2009]

Front 396

Personal Equipment Weight

Back 396

A weight allowance for personal gear that is carried on the apparatus by each fire-fighting crew member.

Front 397

Personal Flotation Device
(PFD)

Back 397

A device manufactured in accordance with U.S. Coast Guard specifications that provides supplemental flotation for persons in the water.

Front 398

Personal Flotation Device
(PFD)

Back 398

A displacement device worn to keep the wearer afloat in water.

Front 399

Personal Gear

Back 399

The weight of personal clothing and items for personal hygiene carried on the fire apparatus by each crew member when they expect the response to be of long duration.

Front 400

Personal Protective Clothing

Back 400

Clothing provided for the fire inspector’s personal protection, including a helmet/hard hat, safety glasses, safety shoes/boots, gloves, and coveralls.

Front 401

Personal Protective Clothing

Back 401

Clothing provided for the fire inspector’s personal protection, including a helmet/hard hat, safety glasses, safety shoes/boots, gloves, and coveralls. [1031, 2003]

Front 402

Personal Protective Clothing

Back 402

The full complement of garments fire fighters are normally required to wear while on an emergency scene including turnout coat, protective trousers, fire-fighting boots, fire-fighting gloves, a protective hood, and a helmet with eye protection. [1001, 2002]

Front 403

Personal Protective Clothing

Back 403

The full complement of garments fire fighters are normally required to wear while on emergency scene, including turnout coat, protective trousers, fire-fighting boots, fire-fighting gloves, a protective hood, and a helmet with eye protection.

Front 404

Personal Protective
Equipment

Back 404

Consists of full personal protective clothing, plus a self-contained breathing apparatus (SCBA) and a personal alert safety system (PASS) device.

Front 405

Personal Protective
Equipment

Back 405

The basic protective equipment for wildland fire suppression includes a helmet, protective footwear, gloves, and flame-resistant clothing as defined in NFPA 1977, Standard on Protective Clothing and Equipment for Wildland Fire Fighting.

Front 406

Personal Protective
Equipment

Back 406

The equipment provided to shield or isolate a person from the chemical, physical, and thermal hazards that can be encountered at hazardous materials/weapons of mass destruction (WMD) incidents.

Front 407

Personal Protective
Equipment (PPE)

Back 407

Consists of full thermal protective clothing, plus a self-contained breathing apparatus (SCBA) and a personal alert safety system (PASS) device.

Front 408

Personal Protective
Equipment (PPE)

Back 408

Full personal protective clothing, plus a self-contained breathing apparatus (SCBA) and a personal alert safety system (PASS) device.

Front 409

Personal Protective
Equipment (PPE)

Back 409

Specialized clothing or equipment worn by a member for protection against a hazard.

Front 410

Personal Protective
Equipment (PPE)

Back 410

The equipment provided to shield or isolate a person from the chemical, physical, or thermal hazards that can be encountered at a specific rescue incident.

Front 411

Personal Protective
Equipment (PPE)

Back 411

The equipment provided to shield or isolate personnel from infectious, chemical, physical, and thermal hazards.

Front 412

Personal Watercraft

Back 412

A vessel less than 13 ft (4 m) in length that uses an internal combustion engine powering a water jet pump as its primary source of propulsion and is designed to be operated by a person or persons sitting, standing, or kneeling on rather than within the confines of the hull.

Front 413

Personnel

Back 413

Any individual participating within the incident scene.

Front 414

Personnel Accountability

Back 414

The ability to account for the location and welfare of incident personnel.

Front 415

Personnel Accountability
Reports (PARs)

Back 415

Periodic reports verifying the status of responders assigned to an incident or planned event.

Front 416

Personnel Accountability
System

Back 416

A system that readily identifies both the location and function of all members operating at an incident scene.

Front 417

Personnel Accountability
System

Back 417

A system that readily identifies both the location and function of all members operating at an incident scene. [1500, 2007]

Front 418

Personnel Protection System

Back 418

A system of personnel protection devices and constructional features that when used together provide protection against electric shock of personnel.

Front 419

Personnel Protective Ground

Back 419

Bonding jumper that is intentionally installed to ground deenergized, normally ungrounded circuit conductors when personnel are working on them, to minimize voltage differences between different parts of the equipment and personnel, so as to protect against shock hazard and/or equipment damage.

Front 420

Pest

Back 420

Any unwanted plant, animal, or microorganism, including insects, rodents, nematodes, fungi, weeds, bacteria, or virus.

Front 421

Pest Control Device

Back 421

An explosive device used to control animal pests.

Front 422

Pesticide

Back 422

Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest or for use as a plant regulator, defoliant, or desiccant.

Front 423

Pesticide

Back 423

Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest or for use as a plant regulator, defoliant, or desiccant. [434, 2002]

Front 424

PF Device

Back 424

A wet or dry device (or assembly of devices) in a fuel gas line designed to perform the following three functions: (1) prevent backflow of oxygen into the fuel gas supply system; (2) prevent the passage of flame into the fuel gas supply system (flashback); (3) prevent the development of a fuel gas-oxygen mixture at sufficient pressure so
that its ignition would achieve combustion pressures that could cause failure to perform functions (1) and (2). This device is given the
diagram symbol PF.

Front 425

Phase Converter

Back 425

An electrical device that converts single-phase power to 3-phase electric power.

Front 426

Phone “Off-Hook” (answered in first PSAP)

Back 426

The time that the telephone is answered in the first PSAP center.

Front 427

Photoelectric Light Obscuration Smoke Detection

Back 427

The principle of using a light source and a photosensitive sensor onto which the principal portion of the source emissions is focused. When smoke particles enter the light path, some of the light is scattered and some is absorbed, thereby reducing the light reaching the receiving sensor. The light reduction signal is processed and used to convey an alarm condition when it meets preset criteria. (SIG-IDS)

Front 428

Photoelectric Light-Scattering
Smoke Detection

Back 428

The principle of using a light source and a photosensitive sensor arranged so that the rays from the light source do not normally fall onto the photosensitive sensor. When smoke particles enter the light path, some of the light is scattered by reflection and refraction onto the sensor. The light signal is processed and used to convey an alarm condition when it meets preset criteria. (SIG-IDS)

Front 429

Photoluminescent

Back 429

Having the ability to store incident electromagnetic radiation typically from ambient light sources, and release it in the form of visible light.

Front 430

Photoluminescent

Back 430

Having the ability to store incident electromagnetic radiation typically from ambient light sources, and release it in the form of visible light. [301, 2008]

Front 431

Photovoltaic Circuits

Back 431

In dc photovoltaic source circuits and photovoltaic output circuits, the maximum system voltage.

Front 432

Photovoltaic Output Circuit

Back 432

Circuit conductors between the photovoltaic source circuit(s) and the inverter or dc utilization equipment.

Front 433

Photovoltaic Power Source

Back 433

An array or aggregate of arrays that generates dc power at system voltage and current.

Front 434

Photovoltaic Source Circuit

Back 434

Circuits between modules and from modules to the common connection point(s) of the dc system.

Front 435

Photovoltaic System Voltage

Back 435

The direct current (dc) voltage of any photovoltaic source or photovoltaic output circuit. For multiwire installations, the photovoltaic system voltage is the highest voltage between any two dc conductors.

Front 436

Physical Hazard

Back 436

A chemical for which there is scientifically valid evidence that the chemical is an organic peroxide or oxidizer.

Front 437

Physical Hazard Material

Back 437

A chemical or substance classified as a combustible liquid, combustible fiber, explosive, flammable cryogen, flammable gas, flammable liquid, flammable solid, organic peroxide, oxidizer, oxidizing cryogen, pyrophoric, unstable (reactive), or water reactive material, in accordance with the definitions set forth in this code or in NFPA 1, Uniform Fire Code.

Front 438

Physical Hazard Material

Back 438

A chemical or substance classified as a combustible liquid, explosive, flammable cryogen, flammable gas, flammable liquid, flammable solid, organic peroxide, oxidizer, oxidizing cryogen, pyrophoric, unstable (reactive), or water-reactive material.

Front 439

Physical Hazard Material

Back 439

A chemical or substance classified as a combustible liquid, explosive, flammable cryogen, flammable gas, flammable liquid, flammable solid, organic peroxide, oxidizer, oxidizing cryogen, pyrophoric, unstable (reactive), or water-reactive material.
[5000, 2009]

Front 440

Physically Fit

Back 440

As determined by a qualified healthcare professional, there are no known physical or medical limitations that would interfere with the performance of strenuous heavy lifting and pulling or with the use of self-contained breathing apparatus that can be required during emergency response organizations.

Front 441

Physically Separated

Back 441

A gastight partition between two adjacent spaces, or two nonadjacent spaces, with no means of gas communication between the spaces.

Front 442

Physician’s Assistant

Back 442

A person who has been trained to take patient histories, perform simple diagnostic laboratory tests, initiate basic treatment for common illness, treat emergency cases, give comprehensive physical examinations, provide continual care and counseling, and work directly with patients, all under the supervision of a licensed physician.

Front 443

Pictogram (Accessibility)

Back 443

A pictorial symbol that represents activities, facilities, or concepts.

Front 444

Pier

Back 444

An isolated support used in a support system extending between the footing and the manufactured home.

Front 445

Pier

Back 445

A structure extending over the water and supported on a fixed foundation (fixed pier), or on flotation (floating pier), that provides access to the water.

Front 446

Pier

Back 446

A structure, usually of greater length than width and projecting from the shore into a body of water with direct access from land, that can be either open deck or provided with a superstructure.

Front 447

Pier

Back 447

A structure, usually of greater length than width and projecting from the shore into a body of water with direct access from land, that can be either open deck or provided with a superstructure. [307, 2006]

Front 448

Pigtail

Back 448

An external conductor that originates within an electrical component or appliance installed by the manufacturer.

Front 449

Pile

Back 449

Material in a single contiguous storage area, including any material not properly separated by appropriate distance.

Front 450

Pile Stability, Stable Piles

Back 450

Those arrays where collapse, spillage of content, or leaning of stacks across flue spaces is not likely to occur soon after initial fire development.

Front 451

Pile Stability, Unstable Piles

Back 451

Those arrays where collapse, spillage of contents, or leaning of stacks across flue spaces occurs soon after initial fire development.

Front 452

Pilot

Back 452

A flame that is used to light the main burner.

Front 453

Pilot

Back 453

A flame that is used to light the main burner. [86, 2003]

Front 454

Pilot

Back 454

A small flame that is utilized to ignite the gas at the main burner or burners.

Front 455

Pilot Cell

Back 455

A selected cell of a battery that is considered to be representative of the average state of the battery or part thereof.

Front 456

Pilot Flame Establishing
Period

Back 456

For the purposes of this standard, the length of time fuel is permitted to be delivered to a proved pilot before the flame-sensing device is required to detect the pilot flame.

Front 457

Pilot Flame Establishing
Period

Back 457

The interval of time during light-off that a safety-control circuit allows the pilot fuel safety shutoff valve to remain open before the combustion safeguard proves the presence of the pilot flame.

Front 458

Pilot Ignition

Back 458

The ignition of a material by radiation where a local high-temperature igniting source is located in the stream of gases and volatiles issuing from the exposed material.

Front 459

Pilot Line Detector

Back 459

An automatic sprinkler or thermostatic fixed temperature release device used as a detector to pneumatically or hydraulically release the system actuation valve.

Front 460

Pilot Line Detector

Back 460

A standard spray sprinkler or thermostatic fixed-temperature release device used as a detector to pneumatically or hydraulically release the main valve, controlling the flow of water into a fire protection system.

Front 461

Pilot Plant

Back 461

An experimental assembly of manufacturing equipment for exploring process variables or for producing semicommercial quantities of materials.

Front 462

Pilot Sprinkler

Back 462

An automatic sprinkler or thermostatic fixed temperature release device used as a detector to pneumatically or hydraulically release the system actuation valve.

Front 463

Pink Noise

Back 463

Noise that contains constant energy per octave band.

Front 464

Pinrail

Back 464

A rail on or above a stage through which belaying pins are inserted and to which lines are fastened.

Front 465

Pipe

Back 465

A pressuretight cylinder used to convey a fluid or to transmit fluid pressure. [ASME B31.3:300.2]

Front 466

Pipe

Back 466

Circular conduit for conveying the extinguishing agent to the discharge nozzle(s). Wherever pipe is used in this standard, it shall be understood also to mean tube.

Front 467

Pipe

Back 467

Circular conduit for conveying the extinguishing agent to the discharge nozzle(s). Wherever pipe is used in this standard, it shall be understood also to mean tube. [17, 2009]

Front 468

Pipe

Back 468

Rigid conduit of iron, steel, copper, brass, aluminum, or plastic.

Front 469

Pipe

Back 469

Rigid conduit of iron, steel, copper, brass, aluminum, or plastic. [54,
2006]

Front 470

Piped Distribution System

Back 470

A pipeline network assembly of equipment that starts at and includes the source valve, warning systems (master, area, local alarms), bulk gas system signal actuating switch wiring, interconnecting piping, and all other components up to and including the station outlets/inlets.
(PIP)

Front 471

Pipeline

Back 471

A length of pipe including pumps, valves, flanges, control devices, strainers, and/or similar equipment for conveying fluids.

Front 472

Pipeline System

Back 472

An arrangement of piping, valves, connections, and allied equipment installed in a mine for the purpose of transporting, transferring, or dispensing flammable or combustible liquids.

Front 473

Pipeline System

Back 473

An arrangement of piping, valves, connections, and allied equipment installed in a mine for the purpose of transporting, transferring, or dispensing flammable or combustible liquids. [122:3.3]

Front 474

Pipe Schedule System

Back 474

A sprinkler system in which the pipe sizing is selected from a schedule that is determined by the occupancy classification and in which a
given number of sprinklers are allowed to be supplied from specific sizes of pipe.

Front 475

Piping

Back 475

A means of transporting natural gas or hydrogen. This term applies to refueling facilities.

Front 476

Piping

Back 476

Assemblies of piping components used to convey, distribute, mix, separate, discharge, meter, control, or snub fluid flows. Piping also includes pipe-supporting elements, but does not include support structures, such as building frames, bents, foundations, or any other equipment excluded from this standard. [ASME B31.3:300.2]

Front 477

Piping

Back 477

As used in this code, either pipe, tubing, or both. (See also 3.3.78, Pipe, and 3.3.104, Tubing.)

Front 478

Piping

Back 478

For recreational vehicles, the tubing or rigid conduit of the system.

Front 479

Piping

Back 479

The tubing or conduit of the system. The three general classes of piping are main lines, risers. and branch (lateral) lines. (PIP)

Front 480

Piping Components

Back 480

Mechanical elements suitable for joining or assembly into
pressure-tight fluid-containing piping systems. Components include
pipe, tubing, fittings, flanges, gaskets, bolting, valves, and devices such
as expansion joints, flexible joints, pressure hoses, traps, strainers,
in-line portions of instruments, and separators. [ASME B31.3:300.2]

Front 481

Piping System

Back 481

All piping, valves, and fittings from the outlet of the point of delivery from the supplier to the outlets of the equipment shutoff valves.

Front 482

Piping System

Back 482

Interconnected piping subject to the same set or sets of design conditions. [ASME B31.3:300.2]

Front 483

Piping Systems

Back 483

Pipe, tubing, hose, and flexible rubber or metallic hose connectors with valves and fittings made into complete systems for conveying LP-Gas from one point to another in either the liquid or the vapor state at various pressures.

Front 484

Piston Plunger Pump

Back 484

A positive displacement pump characterized by the use of a piston or plunger and cylinder to displace liquid.

Front 485

Pit Area

Back 485

A designated area in which work is performed on competition vehicles during the race or performance.

Front 486

Pit Area Fire Fighter

Back 486

A fire fighter who is responsible for providing fire suppression in the pit area and who might be responsible for fire suppression at the fueling depot.

Front 487

Pitched

Back 487

To be fixed or set at a desired angle or inclination.

Front 488

Pitch Pocket Wood Irregularity

Back 488

An opening extending parallel to the annual growth rings that contains, or that has contained, either solid or liquid pitch.

Front 489

Place

Back 489

An area within designated boundaries containing exposed.

Front 490

Place of Worship

Back 490

Any building that functions primarily as a group meeting place for the practice of religion, including, but not limited to, churches, synagogues, cathedrals, temples, mosques, and meeting halls.

Front 491

Place of Worship

Back 491

Any building that functions primarily as a group meeting place for the practice of religion. This includes, but is not limited to, churches, synagogues, cathedrals, temples, and meeting halls.

Front 492

Plain Concrete

Back 492

Concrete that either is unreinforced or contains less reinforcement than the minimum amount specified in ACI 318 for reinforced concrete. [ASCE/SEI 7:11.2].

Front 493

Plan

Back 493

A graphic representation of a building structure or portion of a building structure, fire protection system, or fire assembly or equipment.

Front 494

Plan Developer

Back 494

The individual, group, or agency responsible for developing and maintaining the pre-incident plan.

Front 495

Plan Examiner I

Back 495

An individual at the first level of progression who has met the job performance requirements specified in this standard for Level I. The Plan Examiner I conducts basic plan reviews and applies codes and standards.

Front 496

Plan Examiner II

Back 496

An individual at the second or most advanced level of progression who has met the job performance requirements specified in this standard for Level II. The Plan Examiner II conducts plan reviews and interprets applicable codes and standards.

Front 497

Planned Event

Back 497

An occurrence that allows for the development of an Incident Action
Plan prior to the occurrence.

Front 498

Planned Response

Back 498

The incident action plan, with the site safety and control plan, consistent with the emergency response plan and/or standard operating procedures for a specific hazardous material/weapon of mass destruction (WMD) incident.

Front 499

Planning

Back 499

The incident management section responsible for the collection, evaluation, and dissemination of tactical information related to the incident and for preparation and documentation of incident management plans.

Front 500

Planning Meeting

Back 500

A meeting held as needed prior to and throughout the duration of an incident or planned event to select specific strategies and tactics for incident control operations and for service and support planning.

Front 501

Planning Section

Back 501

Section responsible for the collection, evaluation, dissemination, and use of information related to the incident situation, resource status, and incident forecast.

Front 502

Plant

Back 502

One or more buildings under the same ownership or control on a single property. (SIG-SSS)

Front 503

Plant-On

Back 503

A decorative trim applied to the surface of a door. (See also Annex E.)

Front 504

Plasma

Back 504

A state of ionization in a gas, solid, or liquid that can be generated by the very high electromagnetic field strengths of focused laser beams or by the impact of high-power laser beams.

Front 505

Plasma Arc

Back 505

A heating process in which an ionized gas, such as nitrogen or argon, is used to conduct electrical current.

Front 506

Plasma Arc Furnace

Back 506

A furnace that employs the passage of an electric current between a pair of electrodes, or between electrodes and the work, and ionizes a gas (such as argon) and transfers energy in the form of heat.

Front 507

Plastic

Back 507

Any of a wide range of natural or synthetic organic materials of high molecular weight that can be formed by pressure, heat, extrusion, and other methods into desired shapes.

Front 508

Plastic

Back 508

Any of a wide range of natural or synthetic organic materials of high molecular weight that can be formed by pressure, heat, extrusion, and other methods into desired shapes. [921, 2008]

Front 509

Plastic Glazing

Back 509

Plastic panels or lenses that are glazed or set in a frame or sash and that are not mechanically fastened to a structural member of the structure.

Front 510

Plasticized Nitrocellulose

Back 510

A colloided, chip-like, flake-like, or particle-type nitrocellulose plasticized with not less than 18 percent by weight plasticizer, such as dibutyl phthalate or dioctyl phthalate.

Front 511

Plastic Pallet

Back 511

A pallet having any portion of its construction consisting of a plastic material.

Front 512

Plate

Back 512

A visual indication whether in pictorial or word format that provides instruction to the operator in the use of a component on the apparatus. [1901, 2003]

Front 513

Platform

Back 513

An assembly consisting of the support structure, floor, railings, and operator’s secondary controls that is attached to the tip of a boom or an aerial ladder for carrying personnel and equipment.

Front 514

Platform

Back 514

(1) Any flat-topped vessel, such as a barge, capable of providing a working area for personnel or vehicles. (2) A partial deck in the machinery space.

Front 515

Platform

Back 515

The raised area within a building used for the presentation of music, plays, or other entertainment.

Front 516

Platform

Back 516

The raised area within a building used for the presentation of music, plays, or other entertainment. [101,2006]

Front 517

Plenum

Back 517

A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system.

Front 518

Plenum

Back 518

A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system. [90A, 2002]

Front 519

Plenum

Back 519

A compartment or chamber to which one or more ducts are connected and that forms part of the air distribution system.

Front 520

Plug (Attachment Plug, Cap)

Back 520

A device that, by insertion in a receptacle, establishes connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle. (ELE)

Front 521

Plugging Box

Back 521

A dc device consisting of one or more 2-pole, 2-wire, nonpolarized, nongrounding-type receptacles intended to be used on dc circuits only.

Front 522

Plugholing

Back 522

The condition where air from below the smoke layer is pulled through the smoke layer into the smoke exhaust due to a high exhaust rate.

Front 523

Plugholing

Back 523

The condition where air from below the smoke layer is pulled through the smoke layer into the smoke exhaust due to a high exhaust rate. [92B, 2005]

Front 524

Plumbing Code

Back 524

The plumbing code referenced in Section 2.2.

Front 525

Plumbing Vent

Back 525

Any pipe provided to ventilate a plumbing system, to prevent trap siphonage and back pressure, or to equalize the air pressure within the drainage system.

Front 526

Plume

Back 526

A column of smoke that rises above a fire.

Front 527

Plume

Back 527

The column of hot gases, flames, and smoke rising above a fire; also called convection column, thermal updraft, or thermal column.

Front 528

Plywood

Back 528

Exterior grade plywood.

Front 529

Plywood Wood Structural
Panel

Back 529

A wood structural panel comprised of plies of wood veneer arranged in cross-aligned layers.

Front 530

Pneumatic Conveying System

Back 530

A material feeder, an air-material separator, an enclosed ductwork system, and an air-moving device in which a combustible particulate solid is conveyed from one point to another with a stream of air or other gases. [654, 2006]

Front 531

Pneumatic Conveying System

Back 531

A material feeder, an air-material separator, an enclosed ductwork system, or an air-moving device in which a combustible particulate solid is conveyed from one point to another with a stream of air or other gases.

Front 532

Pneumatic Lines

Back 532

The lines that supply air, which is normally for a breathing air system or for pneumatic power tools, to a platform or to the tip of an aerial ladder.

Front 533

Pneumatic Rate-of-Rise
Tubing Heat Detector

Back 533

A line-type detector comprising small-diameter tubing, usually copper, that is installed on the ceiling or high on the walls throughout the protected area. The tubing is terminated in a detector unit containing diaphragms and associated contacts set to actuate at a predetermined pressure. The system is sealed except for calibrated vents that compensate for normal changes in temperature. [72, 2007]

Front 534

Pneumatic Rate-of-Rise
Tubing Heat Detector

Back 534

A line-type detector comprising small-diameter tubing, usually copper, that is installed on the ceiling or high on the walls throughout the protected area. The tubing is terminated in a detector unit containing diaphragms and associated contacts set to actuate at a predetermined pressure. The system is sealed except for calibrated vents that compensate for normal changes in temperature. (SIG-IDS)

Front 535

Pneumatic Struts

Back 535

Pneumatic or gas-filled tube and piston assemblies in vehicles or machinery.

Front 536

Pocket Mask

Back 536

A double-lumen device that is portable, pocket-size, and designed to protect the emergency care provider from direct contact with the mouth/lips or body fluids of a patient while performing artificial respiration.

Front 537

Point ID

Back 537

The ability to identify, at the monitoring station, an intrusion detection device by address or zone number.

Front 538

Point of Common Coupling

Back 538

The point at which the power production and distribution network and the customer interface occurs in an interactive system. Typically, this is the load side of the power network meter.

Front 539

Point of Entrance

Back 539

The point within a building at which the cable emerges from an external wall, from a concrete floor slab, or from a rigid metal conduit (Type RMC) or an intermediate metal conduit (Type IMC) connected by a grounding conductor to an electrode in accordance with
770.100(B).

Front 540

Point of Entrance

Back 540

The point within a building at which the cable emerges from an external wall, from a concrete floor slab, or from a rigid metal conduit (Type RMC) or an intermediate metal conduit (Type IMC) connected by a grounding conductor to an electrode in accordance with
830.100(B).

Front 541

Point of Entrance

Back 541

The point within a building at which the coaxial cable emerges from an external wall, from a concrete floor slab, or from a rigid metal conduit (Type RMC) or an intermediate metal conduit (Type IMC) connected by a grounding conductor to an electrode in accordance with 820.100(B).

Front 542

Point of Entrance

Back 542

The point within a building at which the wire or cable emerges from an external wall, from a concrete floor slab, or from a rigid metal conduit (Type RMC) or an intermediate metal conduit (Type IMC) connected by a grounding conductor to an electrode in accordance with 800.100(B).

Front 543

Point of Operation

Back 543

The location in the (machine) where the material or workpiece is positioned and work is performed.

Front 544

Point of Origin

Back 544

The exact physical location where a heat source and a fuel come in contact with each other and a fire begins.

Front 545

Point of Safety

Back 545

A location that (a) is exterior to and away from a building; or (b) is within a building of any construction type protected throughout by an approved automatic sprinkler system and that is either (1) within an exit enclosure meeting the requirements of this Code, or (2) within another portion of the building that is separated by smoke barriers in accordance with Section 8.5 having a minimum 1/2-hour fire
resistance rating, and that portion of the building has access to a
means of escape or exit that conforms to the requirements of this Code
and does not necessitate return to the area of fire involvement; or (c)
is within a building of Type I, Type II(222), Type II(111), Type
III(211), Type IV, or Type V(111) construction (see 8.2.1.2) and is
either (1) within an exit enclosure meeting the requirements of this
Code, or (2) within another portion of the building that is separated by
smoke barriers in accordance with Section 8.5 having a minimum
1/ -hour fire resistance rating, and that portion of the building has
2
access to a means of escape or exit that conforms to the requirements
of this Code and does not necessitate return to the area of fire
involvement.

Front 546

Point of Safety

Back 546

For road tunnels, bridges, and limited access highways, an exit enclosure that leads to a public way or safe location outside the structure, or an at-grade point beyond any enclosing structure, or another area that affords adequate protection for motorists.

Front 547

Point of Safety

Back 547

In a transportation system, an enclosed fire exit that leads to a public way or safe location outside the station, trainway, or vehicle, or to an at-grade point beyond the vehicle, any enclosing station, trainway, or vehicle, or another area that affords adequate protection to passengers.

Front 548

Point of Transfer

Back 548

The location where connections and disconnections are made.

Front 549

Point of Transfer

Back 549

The location where connections and disconnections are made or where LP-Gas is vented to the atmosphere in the course of transfer operations.

Front 550

Point of Transfer

Back 550

The location where connections and disconnections are made or where LP-Gas is vented to the atmosphere in the course of transfer operations. [58, 2008]

Front 551

Polarization Transformer

Back 551

An isolated winding transformer (“dry-type” encapsulated lighting transformer) installed in the shore power supply circuit of a boat to isolate electrically the normally current-carrying ac system conductors, but not the ac grounding conductor (green, or green with yellow stripe), from the normally current-carrying conductors of the shore power supply.

Front 552

Polarized System (ac)

Back 552

A system in which the grounded (white) and ungrounded conductors are connected identically in relation to all terminals or fixture leads on all devices in the circuit, including the shore power connections.

Front 553

Polarized System (dc)

Back 553

A system in which the grounded (negative) and ungrounded (positive) conductors are connected identically in relation to all terminals or leads on all devices in the circuit.

Front 554

Policy

Back 554

A legal agreement for transferring risk that defines what will be paid for, in the event of a defined loss, in exchange for a defined amount of money (premium).

Front 555

Pompier Ladder (Scaling
Ladder)

Back 555

A ladder having a single center beam only with rungs protruding on either side of the beam and with a large hook on top that is used for scaling.

Front 556

Pompier Ladder (Scaling
Ladder)

Back 556

A ladder having a single center beam only, with rungs protruding on either side of the beam, and with a large hook on top that is used for scaling. [1931:3.3]

Front 557

Pool

Back 557

Manufactured or field-constructed equipment designed to contain water on a permanent or semipermanent basis and used for swimming, wading, immersion, or therapeutic purposes.

Front 558

Pool

Back 558

To join with others in sharing insurance/financial plans and risks.

Front 559

Pool Cover, Electrically
Operated

Back 559

Motor-driven equipment designed to cover and uncover the water surface of a pool by means of a flexible sheet or rigid frame.

Front 560

Pool Heater

Back 560

An appliance designed for heating nonpotable water stored at atmospheric pressure, such as water in swimming pools, therapeutic pools, and similar applications.

Front 561

Porch

Back 561

An outside walking area having a floor that is elevated more than
203 mm (8 in.) above grade.

Front 562

Port

Back 562

An orifice, through which air is drawn to an air sampling-type detector.

Front 563

Port

Back 563

General area of a shore establishment having facilities for the landing, loading/unloading, and maintenance of vessels; harbor with piers.

Front 564

Portable

Back 564

X-ray equipment designed to be hand-carried.

Front 565

Portable Anchor

Back 565

A manufactured device with rigid arms, legs or both designed to support human loads.

Front 566

Portable Container

Back 566

A container designed to be moved readily, as opposed to a container designed for stationary installations.

Front 567

Portable Electrical Equipment

Back 567

Any electrical equipment that is not fixed. (See 3.3.67, Fixed Electrical
Equipment.)

Front 568

Portable Engines

Back 568

Engines mounted on skids, wheels, or otherwise arranged so that they can be moved from place to place as the required service indicates.

Front 569

Portable Equipment

Back 569

Equipment fed with portable cords or cables intended to be moved from one place to another.

Front 570

Portable Equipment

Back 570

Equipment intended to be moved from one place to another.

Front 571

Portable Equipment

Back 571

Equipment with electrical components suitable to be moved by a single person without mechanical aids.

Front 572

Portable Extinguisher

Back 572

An extinguisher of the hand-held or wheeled type that is capable of being carried or moved about, or a transportable system consisting of a hose reel or rack, hose, and discharge nozzle assembly connected to a supply of suppressant.

Front 573

Portable Fire Extinguisher

Back 573

A portable device, carried or on wheels and operated by hand, containing an extinguishing agent that can be expelled under pressure for the purpose of suppressing or extinguishing fire.

Front 574

Portable Fire Extinguisher

Back 574

A portable device, carried or on wheels and operated by hand, containing an extinguishing agent that can be expelled under pressure for the purpose of suppressing or extinguishing fire. [10, 2007]

Front 575

Portable Flame Effects

Back 575

Flame effects that are designed and installed, either in a permanent or temporary installation, that are designed to move or be moved, in the course of operation or installation.

Front 576

Portable Fuel Cell Installation

Back 576

A fuel cell generator of electricity that is not fixed in place. A portable appliance utilizes a cord and plug connection to a grid-isolated load and has an integral fuel supply.

Front 577

Portable Generator

Back 577

A mechanically driven power source that can be removed from the fire apparatus and operated at a location that is remote from the fire apparatus.

Front 578

Portable Monitor

Back 578

A monitor that can be lifted from a vehicle-mounted bracket and moved to an operating position on the ground by not more than two people.

Front 579

Portable Monitor (Cannon)

Back 579

A device that delivers a foam monitor stream and is mounted on a movable support or wheels so it can be transported to the fire scene.

Front 580

Portable Monitor (Cannon)

Back 580

A device that delivers a large water additive stream and is mounted on a movable support or wheels so it can be transported to the fire scene.

Front 581

Portable Object

Back 581

An object, device, or appliance that can readily be moved from one place to another, for example, a vacuum cleaner.

Front 582

Portable Outlet Header

Back 582

An assembly of piping and fittings, used for station outlet purposes, that is connected to the permanent piping of an oxygen-fuel gas system by means of hose or other nonrigid conductors.

Front 583

Portable Power Distribution
Unit

Back 583

A power distribution box containing receptacles and overcurrent devices.

Front 584

Portable Racks

Back 584

Racks that are not fixed in place.

Front 585

Portable Racks

Back 585

Racks that are not fixed in place. They can be arranged in any number of configurations.

Front 586

Portable Radio

Back 586

A battery-operated, hand-held transceiver.

Front 587

Portable Spa

Back 587

A spa that is not permanent and in which the water circulating equipment can be either an integral or nonintegral part of the product.

Front 588

Portable Storage Container

Back 588

A container that is designed and constructed to be moved over a highway from one usage location to another.

Front 589

Portable Structures

Back 589

Units designed to be moved including, but not limited to, amusement rides, attractions, concessions, tents, trailers, trucks, and similar units.

Front 590

Portable System

Back 590

Foam-producing equipment, materials, hose, and so forth, that are transported by hand.

Front 591

Portable Tank

Back 591

Any closed vessel having a liquid capacity over 227 L (60 U.S. gal) and not intended for fixed installation, including intermediate bulk containers (IBCs), as defined and regulated by the U.S. Department of Transportation.

Front 592

Portable Tank

Back 592

Any closed vessel having a liquid capacity over 230 L (60 gal) and not intended for fixed installation. This includes intermediate bulk containers (IBCs) as defined and regulated by the U.S. Department of Transportation.

Front 593

Portable Tank

Back 593

Any closed vessel having a liquid capacity over 230 L (60 gal) and not intended for fixed installation. This includes intermediate bulk containers (IBCs) as defined and regulated by the U.S. Department of Transportation. [30:3.3]

Front 594

Portable Tank

Back 594

Any packaging over 227.1 L (60 U.S. gal) capacity designed primarily to be loaded into or on, or temporarily attached to, a transport vehicle or ship and equipped with skids, mountings, or accessories to facilitate handling of the tank by mechanical means.

Front 595

Portable Tank

Back 595

Any vessel having a liquid capacity over 60 gal (230 L) intended for storing liquids and not intended for fixed installation.

Front 596

Portable Tank

Back 596

Any vessel having a liquid capacity over 60 gal (230 L) intended for storing liquids and not intended for fixed installation. [30, 2008]

Front 597

Portable Tank (or Skid Tank)

Back 597

A container of more than 1000 lb (454 kg) water capacity that is equipped with protected container appurtenances, is used to transport LP-Gas, and is designed and fabricated with permanently mounted skids or runners or is fabricated and installed within a full framework.

Front 598

Portable Tank (or Skid Tank)

Back 598

A container of more than 1000 lb (454 kg) water capacity that is equipped with protected container appurtenances, is used to transport LP-Gas, and is designed and fabricated with permanently mounted skids or runners or is fabricated and installed within a full framework. [58, 2008]

Front 599

Portable Valve

Back 599

A fire hose appliance that includes at least one valve and has fire hose connections on both inlet(s) and outlet(s).

Front 600

Portal

Back 600

A horizontal roadway or pedestrian entry to or exit from the subterranean space.

Front 601

Portal

Back 601

The interface between a tunnel and the atmosphere through which vehicles pass; a connection point to an adjacent facility.

Front 602

Portfire

Back 602

A long tube containing slow-burning pyrotechnic composition that is sometimes used to ignite fireworks at outdoor fireworks displays.

Front 603

Portland Cement Plaster

Back 603

A plaster mix in which portland cement or combinations of portland and masonry cements or portland cement and lime are the principal cementitious materials mixed with aggregate.

Front 604

Port Side

Back 604

The left-hand side of a ship when facing forward.

Front 605

Port Side

Back 605

The left-hand side of a ship when facing forward. [1405, 2006]

Front 606

Port State Control

Back 606

The government authority having ultimate legal jurisdiction over a port or jurisdictional waterways.

Front 607

Positioning Attachment Point

Back 607

Point on a harness or belt that is used for connection to an anchor system that will support a person’s weight for work at height.

Front 608

Position Sensor

Back 608

A device that indicates whether a portal is open or closed.

Front 609

Positive Alarm Sequence

Back 609

An automatic sequence that results in an alarm signal, even when manually delayed for investigation, unless the system is reset.
(SIG-PRO)

Front 610

Positive Displacement Pump

Back 610

A pump that is characterized by a method of producing flow by capturing a specific volume of fluid per pump revolution and reducing the fluid void by a mechanical means to displace the pumping fluid.

Front 611

Positive Means

Back 611

The physical methods of satisfying a requirement.

Front 612

Positive-Negative Pressure
Breathing

Back 612

Ventilation of the lungs by the application of intermittent positive-negative pressure to the airway. (GAS)

Front 613

Positive Opening Operation
(of a contact element)

Back 613

The achievement of contact separation as the direct result of a specified movement of the switch actuator through nonresilient members (e.g., not dependent upon springs).

Front 614

Positive Pressure

Back 614

Pressure greater than ambient atmospheric. (GAS)

Front 615

Positive-Pressure Pneumatic
Conveying System

Back 615

A pneumatic conveying system that transports material by utilizing gas at greater than atmospheric pressure.

Front 616

Positive Pressure SCBA

Back 616

An SCBA in which the pressure inside the facepiece, in relation to the pressure surrounding the outside of the facepiece, is positive during both inhalation and exhalation when tested by NIOSH in accordance with 42 CFR 84, Subpart H.

Front 617

Post Aircraft Accident

Back 617

The specific time when all fires have been extinguished, persons have been accounted for, survivors have been removed, and the hazards have been identified.

Front 618

Postbriefing

Back 618

At the termination of an incident, after breakdown and cleanup have occurred, reviews the effectiveness of strategies, tactics, equipment, and personnel at an incident, as well as provides an opportunity to detect the presence of critical incident stress syndrome.

Front 619

Post-Exposure Prophylaxis

Back 619

Administration of a medication to prevent development of an infectious disease following known or suspected exposure to that disease.

Front 620

Postflashover

Back 620

The stage of a room fire during which average air temperature in the upper half of the room exceeds 600°C.

Front 621

Post Orders

Back 621

The written procedures from the facility management that list the duties and direct the actions of security officers.

Front 622

Postpurge

Back 622

A purge performed after the burner(s) is shut down.

Front 623

Postulated Fire

Back 623

A fire that is assumed to occur in a specific area of a nuclear plant.

Front 624

Potable Water Storage Tank

Back 624

A tank installed in a recreational vehicle for the purpose of storing potable water.

Front 625

Potential Fuel Spill Points

Back 625

The points on or around the aircraft or airport ramp where fuel can be released. These points include fueling hydrants, fuel servicing vehicles, fuel tank fill connections, fuel vent openings, and fuel dump valves.

Front 626

Potential Heat of a Material

Back 626

The difference between the gross heat of combustion per unit mass of a representative specimen of the material and the heat of combustion per unit mass of any residue remaining after exposure of a representative specimen of the material to a defined heat source using combustion calorimetric techniques.

Front 627

Potentially Infectious
Materials

Back 627

Any body fluid that is visibly contaminated with blood; all body fluids in situations where it is difficult or impossible to differentiate between body fluids; sputum, saliva, and other respiratory secretions; and any unfixed tissue or organ from a living or dead human.

Front 628

Powder

Back 628

Granules, dusts, fines, ultra fines, and other substances defined according to the specific metal.

Front 629

Powder Filling “q”

Back 629

Type of protection where electrical parts capable of igniting an explosive atmosphere are fixed in position and completely surrounded by filling material (glass or quartz powder) to prevent the ignition of an external explosive atmosphere.

Front 630

Powder Production Plant

Back 630

Facilities or buildings in which the primary product is powder.

Front 631

Power

Back 631

The rate at which energy is emitted, transferred, or received; the units of power are watts (joules/second).

Front 632

Power and Control Tray
Cable, Type TC

Back 632

A factory assembly of two or more insulated conductors, with or without associated bare or covered grounding conductors, under a nonmetallic jacket.

Front 633

Power Area

Back 633

The area or enclosed room of a telecommunications facility that contains power equipment.

Front 634

Power-Assist Steering

Back 634

A system using hydraulic or air power to aid in the steering assist. This system is supplementary to the mechanical system in order to
maintain steering ability in the event of power failure.

Front 635

Power Block

Back 635

Structures that have equipment required for nuclear plant operations.

Front 636

Power Burner

Back 636

A burner in which either gas or air, or both, are supplied at a pressure exceeding, for gas, the line pressure, and for air, atmospheric pressure; this added pressure being applied at the burner. A burner for which air for combustion is supplied by a fan ahead of the appliance is commonly designated as a forced-draft burner.

Front 637

Power Circuit

Back 637

A circuit used for supplying power from the supply network to units of equipment used for productive operation and to transformers supplying control circuits.

Front 638

Powered Air-Purifying
Respirators (PAPR)

Back 638

Air-purifying respirator with a hood or helmet, breathing tube, canister, cartridge, filter, and a blower that passes ambient air through the purifying element. The blower can be stationary or portable. It can also be designed and equipped with a full facepiece, in which case it is referred to as a full facepiece powered air-purifying respirator (FFPAPR).

Front 639

Powered Equipment Rack

Back 639

A power-operated device that is intended to provide storage of hard suction hoses, ground ladders, or other equipment, generally in a location above apparatus compartments. [1901, 2003]

Front 640

Powered Equipment Rack

Back 640

A power-operated device that is intended to provide storage of suction hoses, ground ladders, or other equipment, generally in a location above apparatus compartments.

Front 641

Powered Loudspeaker

Back 641

Equipment that consists of a loudspeaker and amplifier within the same enclosure. Other signal processing may also be included.

Front 642

Powered Rescue Tool

Back 642

A rescue tool that receives power from the power unit component and generates the output forces or energy used to perform one or more of the functions of spreading, lifting, holding, crushing, pulling, or cutting.

Front 643

Powered Rescue Tool
Components

Back 643

Cable assemblies, hose assemblies, power units, hose reels, and remote valve blocks. The individual parts that are assembled in a rescue tool or component, such as seals, screws, valves, and switches, are not themselves considered as components for the purposes of this standard.

Front 644

Power Equipment

Back 644

Equipment that utilizes power greater than 2500 VA or switches loads greater than 2500 VA.

Front 645

Power Equipment

Back 645

Power equipment that includes, but is not limited to, batteries, rectifiers, inverters, distribution cabinets, bus bars, and cabling and that provides power to the signal-processing equipment.

Front 646

Power-Limited Fire Alarm
Circuit (PLFA)

Back 646

A fire alarm circuit powered by a source that complies with 760.121.

Front 647

Power-Operated Fire Doors

Back 647

Doors that normally are opened and closed electrically or pneumatically.

Front 648

Power Outlet

Back 648

An enclosed assembly that may include receptacles, circuit breakers, fuseholders, fused switches, buses, and watt-hour meter mounting means; intended to supply and control power to mobile homes, recreational vehicles, park trailers, or boats or to serve as a means for distributing power required to operate mobile or temporarily installed equipment.

Front 649

Power Source

Back 649

A device that produces line voltage electricity.

Front 650

Power Source

Back 650

The power obtained from a utility distribution system, an engine-driven generator, or a battery.

Front 651

Power Station

Back 651

An electric generating plant for supplying electrical energy to the system.

Front 652

Power Substation

Back 652

Location of electric equipment that does not generate electricity but receives and converts or transforms generated energy to usable electric energy.

Front 653

Power Supply

Back 653

A source of electrical operating power, including the circuits and terminations connecting it to the dependent system components. (SIG-FUN)

Front 654

Power Supply Assembly

Back 654

Any cord or distribution assembly that is partly comprised of the neutral conductor, grounding conductor, and line voltage conductors connected from the output terminals of the power source to the first main overcurrent protection device.

Front 655

Power-Supply Assembly

Back 655

The conductors, including ungrounded, grounded, and equipment grounding conductors, the connectors, attachment plug caps, and all other fittings, grommets, or devices installed for the purpose of delivering energy from the source of electrical supply to the distribution panel within the recreational vehicle.

Front 656

Power Transformers

Back 656

Determines the type of transformer and is defined as those larger than 500 kVA, while distribution transformers are those 500 kVA or smaller.

Front 657

Power Unit

Back 657

A powered rescue tool component consisting of a prime mover and the principal power output device used to power the rescue tool.

Front 658

Power Venting

Back 658

The application of a mechanical means of removing combustion products to the outside atmosphere. (See 3.3.24.1, Mechanical Draft.)

Front 659

ppm

Back 659

Parts per million, volume per volume.

Front 660

Practical Critical Fire Area
(PCA)

Back 660

The area, for foam discharge purposes, calculated as one-half the fuselage length multiplied by three times the fuselage width.

Front 661

Practical Critical Fire Area
(PCA)

Back 661

This area is two-thirds of the Theoretical Critical Fire Area (TCA). [402, 2002] (See also 3.3.15, Theoretical Critical Fire Area.)

Front 662

Practical Critical Fire Area
(PCA)

Back 662

This area is two-thirds of the theoretical critical fire area (TCA). (See also 3.3.16.3, Theoretical Critical Fire Area.)

Front 663

Preaction Sprinkler System

Back 663

A sprinkler system employing automatic sprinklers that are attached to a piping system containing air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers.

Front 664

Preaction Sprinkler System

Back 664

A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers.

Front 665

Preaction Sprinkler System

Back 665

A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers. [13, 2007]

Front 666

Preaction Water Mist System

Back 666

A water mist system using automatic nozzles attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the mist nozzles. The actuation of the detection system opens a valve that allows water to flow into the piping system and discharges through all opened nozzles in the system.

Front 667

Pre-Alarm Signal

Back 667

An audible warning that is identifiable as an indication that a PASS is about to sound the alarm signal.

Front 668

Prebriefing

Back 668

At the beginning of an incident, after size-up information has been assessed, given to the rescue team to provide assignments, select and notify of strategy and tactics to be performed, and state the mission objective.

Front 669

Preconnected Hose Line

Back 669

A hose line that is stored on the apparatus already connected to an outlet on a pump and that can be charged by the activation of one discharge valve.

Front 670

Preconnected Hose Line

Back 670

A hose line that is stored on the apparatus already connected to an outlet on a pump and that can be charged by the activation of one discharge valve. [1901, 2003]

Front 671

Preconnected Line

Back 671

A discharge hose line already attached to an engine outlet.

Front 672

Precursor Chemicals

Back 672

Two or more unmixed, commercially manufactured prepackaged chemical ingredients (including oxidizers, flammable liquids or solids, or similar ingredients) that are not classified as explosives but that, where mixed or combined, form a blasting explosive.

Front 673

Predict

Back 673

The process of estimating or forecasting the future behavior of a hazardous materials/weapons of mass destruction (WMD) container and/or its contents within the training and capabilities of the emergency responder.

Front 674

Pre-Engineered and Matched Modular Components Fuel Cell Power System

Back 674

A fuel cell power system that has components that are assembled in a factory in separate modules, such as the fuel cell stack, reformer, and inverter.

Front 675

Preengineered System

Back 675

A packaged sprinkler system including all components connected to the water supply and designed to be installed according to pretested limitations.

Front 676

Pre-Engineered System

Back 676

A system having predetermined flow rates, nozzle pressures, and quantities of agent. These systems have the specific pipe size, maximum and minimum pipe lengths, flexible hose specifications, number of fittings, and number and types of nozzles prescribed by a testing laboratory. The hazards protected by these systems are specifically limited as to type and size by a testing laboratory based upon actual fire tests. Limitations on hazards that can be protected by these systems are contained in the manufacturer’s installation manual, which is referenced as part of the listing.

Front 677

Pre-Engineered System

Back 677

A system that has predetermined flow rates, nozzle placement, and quantities of carbon dioxide and that incorporates specific nozzles and methods of application that can differ from those detailed elsewhere in this standard and those that are listed by a testing laboratory.

Front 678

Pre-Engineered Systems

Back 678

Those having predetermined flow rates, nozzle pressures, and quantities of extinguishing agent. These systems have the specific pipe size, maximum and minimum pipe lengths, flexible hose specifications, number of fittings, and number and types of nozzles prescribed by a testing laboratory. The maximum and minimum pipe lengths and the number of fittings shall be permitted to be expressed in equivalent feet of pipe. The hazards protected by these systems are specifically limited as to type and size by a testing laboratory, based on actual fire tests. Limitations on hazards that are permitted to be protected by these systems and piping and nozzle configurations are contained in the manufacturer’s listed installation and maintenance manual, which is part of the listing of the system.

Front 679

Pre-Engineered Systems

Back 679

Those having predetermined flow rates, nozzle pressures, and quantities of extinguishing agent. These systems have the specific pipe size, maximum and minimum pipe lengths, flexible hose specifications, number of fittings, and number and types of nozzles prescribed by a testing laboratory. The maximum and minimum pipe lengths and the number of fittings shall be permitted to be expressed in equivalent feet of pipe. The hazards protected by these systems are specifically limited as to type and size by a testing laboratory, based on actual fire tests. Limitations on hazards that are permitted to be protected by these systems and piping and nozzle configurations are contained in the manufacturer’s listed installation and maintenance manual, which is part of the listing of the system. [17A, 2009]

Front 680

Pre-engineered Water Mist
Systems

Back 680

Those systems having predetermined flow rates, nozzle pressures, and water quantities.

Front 681

Pre-Entry Briefing

Back 681

Information passed to all personnel prior to entry into a confined space or trench/excavation environment.

Front 682

Pre-Entry Medical Exam

Back 682

A baseline medical evaluation of the rescue entrants performed immediately prior to a rescue entry.

Front 683

Prefabricated

Back 683

Fabricated prior to erection or installation on or in a building or on a foundation.

Front 684

Pre-Incident Plan

Back 684

A document developed by gathering general and detailed data used by responding personnel to determine the resources and actions necessary to mitigate anticipated emergencies at a specific facility.

Front 685

Pre-Incident Plan

Back 685

A document developed by gathering general and detailed data used by responding personnel to determine the resources and actions necessary to mitigate anticipated emergencies at a specific facility. [1620, 2003]

Front 686

Pre-Incident Planning

Back 686

A written document resulting from the gathering of general and detailed information/data to be used by public emergency response agencies and private industry for determining the response to reasonable anticipated emergency incidents at a specific facility.

Front 687

Preload

Back 687

A pyrotechnic device supplied by the manufacturer in a ready-to-use condition.

Front 688

Premises

Back 688

The land and buildings of a user located on the user side of the utility-user network point of demarcation.

Front 689

Premises

Back 689

The land and buildings of a user located on the user side of utility-user network point of demarcation.

Front 690

Premises Wiring (System)

Back 690

Interior and exterior wiring, including power, lighting, control, and signal circuit wiring together with all their associated hardware, fittings, and wiring devices, both permanently and temporarily installed. This includes (a) wiring from the service point or power source to the outlets or (b) wiring from and including the power source to the outlets where there is no service point.

Front 691

Premix Burner

Back 691

A burner in which the fuel and air are mixed prior to the point of ignition.

Front 692

Premixed Flame

Back 692

A flame for which the fuel and oxidizer are mixed prior to combustion, as in a laboratory Bunsen burner or a gas cooking range; propagation of the flame is governed by the interaction between flow rate, transport processes, and chemical reaction.

Front 693

Premixed Foam Solution

Back 693

Solution produced by introducing a measured amount of foam concentrate into a given amount of water in a storage tank.

Front 694

Prepackaged, Self-Contained
Fuel Cell Power System

Back 694

A fuel cell power system that is designed as one unit, assembled in a factory, and shipped to site.

Front 695

Preparation Process

Back 695

The operations involving the equipment used for the preparation of the material for the extraction process.

Front 696

Preparation Workstation

Back 696

An enclosed, partially enclosed, or unenclosed power-ventilated apparatus that is used to control the dusts and residues generated by surface preparation activities, such as sanding. A preparation workstation is not a limited finishing workstation, spray booth, or spray room, as herein defined.

Front 697

Preparedness

Back 697

Activities, tasks, programs, and systems developed and implemented prior to an emergency that are used to support the prevention of, mitigation of, response to, and recovery from emergencies.

Front 698

Preparedness

Back 698

Activities that lead to a safe, efficient, and cost-effective fire management program in support of land and resource management objectives through appropriate planning and coordination.

Front 699

Prepared Program

Back 699

An assembled kit, including a lesson plan, behavioral objectives, presentation outline, instructional materials, and evaluation instruments, that is ready to be presented.

Front 700

Preplanned Impairment

Back 700

A condition where a water-based fire protection system or a portion thereof is out of service due to work that has been planned in advance, such as revisions to the water supply or sprinkler system piping.

Front 701

Preplanned Impairment

Back 701

As used in this code, a condition where a fire protection system or a portion thereof is out of service due to work that has been planned.

Front 702

Prepping Area

Back 702

An area designated by the range safety officer where high power rockets and high power rocket motors are prepared for launch.

Front 703

Preprimed System

Back 703

A wet pipe system containing foam solution.

Front 704

Pre-Purge Period

Back 704

The interval of time during burner start-up in which air is introduced into the combustion chamber and the associated flue passages in such volume and manner as to completely replace the air or fuel-air mixture contained therein prior to initiating ignition.

Front 705

Prescribed Fire

Back 705

Any fire ignited by management actions to meet specific objectives.

Front 706

Prescribed Fire

Back 706

Controlled application of fire to wildland fuels in either their natural or modified state, under specified environmental conditions that allow the fire to be confined to a predetermined area and at the same time to produce the intensity of heat and rate of spread required to attain planned resource management objectives.

Front 707

Prescribed Fire (Burning)

Back 707

Any fire ignited by management actions to meet specific objectives.

Front 708

Prescriptive-Based Document

Back 708

A code or standard that prescribes fire safety for a generic use or application.

Front 709

Prescriptive-Based Document

Back 709

A code or standard that prescribes fire safety for a generic use or application. [914, 2001]

Front 710

Preservation

Back 710

Application or use of measures to prevent damage, change or alteration, or deterioration.

Front 711

Preservation

Back 711

The act or process of applying measures necessary to sustain the existing form, integrity, and materials of a historic building or structure.

Front 712

Preservation of Evidence

Back 712

After an aircraft accident/incident, it is imperative that investigative evidence be preserved after life safety and rescue operations have been concluded.

Front 713

Preservative-Treated Wood

Back 713

Wood impregnated under pressure with compounds that reduce their susceptibility to deterioration caused by fungi, insects, or marine borers.

Front 714

Pressing System

Back 714

A building or group of buildings constituting one rocket motor manufacturing unit; considered as one process building for the application of Table 6.1.2 (see Table 6.1.2).

Front 715

Pressure

Back 715

The force per unit of area. Values in this recommended practice are based on the unit of pressure derived from the International System of Units (SI), which is the pascal (Pa) or newton per square meter (N/m2).

Front 716

Pressure

Back 716

Unless otherwise stated, a measurement expressed in pounds per square inch above atmospheric pressure.

Front 717

Pressure/Air Lock

Back 717

A device for transferring pulverized fuel between zones of different pressure without permitting appreciable flow of air or gas in either direction.

Front 718

Pressure Atomizing Burner

Back 718

An atomizing burner in which oil under high pressure is forced through small orifices to emit liquid fuel in a finely divided state.

Front 719

Pressure Compensated
Flowmeter

Back 719

A flowmeter indicating accurate flow of gas whether the gas is discharged into ambient pressure or into a system at nonambient pressure. (GAS)

Front 720

Pressure Control Valve

Back 720

A pilot-operated pressure-reducing valve designed for the purpose of reducing the downstream water pressure to a specific value under both flowing (residual) and nonflowing (static) conditions.

Front 721

Pressure Control Valve

Back 721

A pilot-operated pressure-reducing valve designed for the purpose of reducing the downstream water pressure to a specific value under
both flowing (residual) and nonflowing (static) conditions. [14, 2007]

Front 722

Pressure Drop

Back 722

The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators, and burners.

Front 723

Pressure Foam Maker (High Back-Pressure or Forcing Type)

Back 723

A foam maker utilizing the Venturi principle for aspirating air into a stream of foam solution forms foam under pressure.

Front 724

Pressure Fuel Servicing

Back 724

A system used to fuel an aircraft by close coupling under pressure.

Front 725

Pressure Limiting Device

Back 725

Equipment that under abnormal conditions will act to reduce, restrict, or shut off the supply of gas flowing into a system in order to prevent the gas pressure in that system from exceeding a predetermined value.

Front 726

Pressure or Gravity Filter

Back 726

A filter used to pass liquid through a medium to remove suspended solids.

Front 727

Pressure Piling

Back 727

A condition during deflagration in which pressure increases in the unreacted medium ahead of the propagating combustion zone.

Front 728

Pressure Proportioning Tank

Back 728

A foam concentrate tank with no bladder that uses water flow through an orifice to displace the foam concentrate in the tank with water to add foam concentrate through an orifice into a water line at a specified rate. This device is only suitable for foams having a specific gravity of at least 1.15.

Front 729

Pressure-Reducing Regulator

Back 729

A device that automatically reduces gas under high pressure to a usable lower working pressure. (GAS)

Front 730

Pressure-Reducing Valve

Back 730

A valve designed for the purpose of reducing the downstream water pressure under both flowing (residual) and nonflowing (static) conditions.

Front 731

Pressure-Reducing Valve

Back 731

A valve designed for the purpose of reducing the downstream water pressure under both flowing (residual) and nonflowing (static) conditions. [14, 2007]

Front 732

Pressure-Regulating Device

Back 732

A device designed for the purpose of reducing, regulating, controlling, or restricting water pressure.

Front 733

Pressure-Regulating Device

Back 733

A device designed for the purpose of reducing, regulating, controlling, or restricting water pressure. [14, 2007]

Front 734

Pressure Regulating Device

Back 734

A device designed for the purpose of reducing, regulating, controlling, or restricting water pressure. Examples include pressure-reducing valves, pressure-control valves, and pressure-restricting devices.

Front 735

Pressure Regulating Device

Back 735

A device designed for the purpose of reducing, regulating, controlling, or restricting water pressure. Examples include pressure-reducing valves, pressure-control valves, and pressure-restricting devices. [24, 2007]

Front 736

Pressure Regulator

Back 736

A device, either adjustable or nonadjustable, for controlling and maintaining, within acceptable limits, a uniform outlet pressure.

Front 737

Pressure Regulator

Back 737

A device placed in a gas line for reducing, controlling, and maintaining the pressure in that portion of the piping system downstream of the device. [54, 2006]

Front 738

Pressure Regulator

Back 738

Equipment placed in a gas line for reducing, controlling, and maintaining the pressure in that portion of the piping system downstream of the equipment.

Front 739

Pressure-Relief Device

Back 739

A device designed to open to prevent a rise of internal fluid pressure in excess of a specified value due to exposure to emergency or abnormal conditions.

Front 740

Pressure Relief Device

Back 740

A device designed to open to prevent a rise of internal pressure in excess of a specified value due to emergency or abnormal conditions.

Front 741

Pressure Relief Device

Back 741

A device designed to open to prevent a rise of internal pressure in excess of a specified value due to emergency or abnormal conditions. [58, 2004]

Front 742

Pressure Relief Device

Back 742

A device designed to open to prevent a rise of internal pressure in excess of a specified value due to emergency or abnormal conditions. [58, 2008]

Front 743

Pressure Relief Device

Back 743

A device designed to open to prevent a rise of internal pressure in excess of a specified value due to emergency or abnormal conditions. The device can be of the reclosing or other type, such as one having a rupture disk or fusible plug that requires replacement after each use.

Front 744

Pressure Relief Device
Channels

Back 744

The passage or passages beyond the operating parts of the pressure relief device through which fluid passes to reach the atmosphere.

Front 745

Pressure Relief Valve

Back 745

A type of pressure relief device designed to both open and close to maintain internal fluid pressure.

Front 746

Pressure Relief Valve

Back 746

A type of pressure relief device designed to both open and close to maintain internal fluid pressure. [58, 2008]

Front 747

Pressure Relief Valve

Back 747

A valve that automatically opens and closes a relief vent, depending on whether the pressure is above or below a predetermined value.

Front 748

Pressure-Restricting Device

Back 748

A valve or device designed for the purpose of reducing the downstream water pressure under flowing (residual) conditions only.

Front 749

Pressure Restricting Device

Back 749

A valve or device designed for the purpose of reducing the downstream water pressure under flowing (residual) conditions only. [14, 2007]

Front 750

Pressure Sewer

Back 750

A collection sewer that incorporates a wastewater grinder pump or septic tank effluent pump to convey wastewater from a single residence or group of residences or small commercial establishments to a private or public sewer system or on-site disposal system.

Front 751

Pressure Test

Back 751

An operation performed to verify the gastight integrity of gas piping following its installation or modification.

Front 752

Pressure Vacuum Vent

Back 752

A venting device mounted on atmospheric foam concentrate storage vessels to allow for concentrate expansion and contraction and for tank breathing during concentrate discharge or filling. At rest (static condition), this device is closed to prevent free breathing of the foam concentrate storage tank.

Front 753

Pressure Vessel

Back 753

A container or other component designed in accordance with the ASME
Boiler and Pressure Vessel Code. [52, 2006]

Front 754

Pressure Vessel

Back 754

A container or other component designed in accordance with the ASME
Boiler and Pressure Vessel Code. [52:3.3]

Front 755

Pressure Vessel

Back 755

A container or other component designed in accordance with the ASME Boiler and Pressure Vessel Code or the CSA B51, Boiler, Pressure Vessel and Pressure Piping Code.

Front 756

Pressurization

Back 756

The process of supplying an enclosure with a protective gas with or without continuous flow at sufficient pressure to prevent the entrance of a flammable gas or vapor, a combustible dust, or an ignitible fiber.

Front 757

Pressurization “p”

Back 757

Type of protection for electrical equipment that uses the technique of guarding against the ingress of the external atmosphere, which may be explosive, into an enclosure by maintaining a protective gas therein at a pressure above that of the external atmosphere.

Front 758

Pressurized

Back 758

The process of supplying an enclosure with a protective gas with or without continuous flow at sufficient pressure to prevent the entrance of combustible dust or ignitible fibers/flyings.

Front 759

Pressurized Aircraft

Back 759

Sealed, modern-type aircraft within which the internal atmospheric pressure can be regulated.

Front 760

Pressurized Liquid Dispensing
Container (PLDC)

Back 760

DOT, UN 1A1, or ASME pressure container designed to dispense flammable or combustible liquids by gas pressure.

Front 761

Pressurized Stairwells

Back 761

A type of smoke-control system in which stair shafts are mechanically pressurized, with respect to the fire area, with outdoor air to keep smoke from contaminating them during a fire incident.

Front 762

Pressurizing System

Back 762

A grouping of components used to pressurize and monitor a protected enclosure.

Front 763

Prestressed Concrete Container

Back 763

A concrete container where the concrete is placed into compression by tendons or by external wire wrapping. (Also called post-tension container.)

Front 764

Prevent Fire Ignition

Back 764

Prevent initiation of destructive and uncontrolled burning.

Front 765

Prevention

Back 765

Activities, including public education, law enforcement, personal contact, and reduction of fuel hazards, directed at reducing the incidence of fires.

Front 766

Prevention

Back 766

Activities to avoid an incident or to stop an emergency from occurring.

Front 767

Preventive Maintenance

Back 767

The act or work of keeping something in proper condition by performing necessary preventive actions in a routine manner to prevent failure or breakdown.

Front 768

Previously Approved

Back 768

That which was acceptable to the authority having jurisdiction prior to the date this edition of the Code went into effect.

Front 769

Primary Access

Back 769

The existing opening of doors and/or windows that provide a pathway to the trapped and/or injured victim(s).

Front 770

Primary Air

Back 770

Air supplied for combustion that is admitted into the furnace through a burner premixed with the fuel.

Front 771

Primary Air

Back 771

All air supplied through the burner.

Front 772

Primary Air

Back 772

The air introduced into a burner that mixes with the gas before it reaches the port or ports.

Front 773

Primary Air Fan

Back 773

A fan used to supply coal transport air to the pulverizer or to the burner lines of a storage system.

Front 774

Primary Air (for the purposes of equipment within the scope of Chapter 8, Heat Recovery Steam Generators and Other Combustion Turbine Exhaust Systems)

Back 774

The air that is contained in the combustion turbine exhaust.

Front 775

Primary Air (in a Bubbling
Fluidized Bed)

Back 775

That portion of total air used to transport or inject fuel or sorbent and to recycle material to the bed.

Front 776

Primary Air (in a Circulating
Fluidized Bed)

Back 776

That portion of total air introduced at the base of the combustor through the air distributor.

Front 777

Primary Air (in a Pulverized
Fuel System)

Back 777

In a pulverized fuel system, can be either air or a flue gas/air mixture, and can simultaneously also be pulverizer air and/or transport air.

Front 778

Primary Air-Material Separator

Back 778

A collector that separates the bulk of the product or material from the conveying airstream.

Front 779

Primary Barrier

Back 779

The inner element designed to contain the cargo when the cargo containment system includes two boundaries.

Front 780

Primary Battery (Dry Cell)

Back 780

A nonrechargeable battery requiring periodic replacement. (SIG-FUN)

Front 781

Primary Containment

Back 781

The first level of containment, consisting of the inside portion of that container that comes into immediate contact on its inner surface with the material being contained.

Front 782

Primary Explosive

Back 782

A sensitive explosive such as lead azide, which detonates by simple ignition from such means as spark, flame, impact, friction, or other primary heat sources of appropriate magnitude.

Front 783

Primary Extinguishing Agent

Back 783

Agents that have the capability of suppressing and preventing the reignition of fires in liquid hydrocarbon fuels.

Front 784

Primary Eye Protection

Back 784

A protective device specifically intended to shield the eyes from certain hazards while permitting vision. (See also 3.3.30, Faceshield;
3.3.40, Goggle; and 3.3.90, Spectacles.)

Front 785

Primary Inlet

Back 785

The inlet where an appliance connects to a hose.

Front 786

Primary Materials

Back 786

Vapor-protective ensemble and element materials limited to the suit material, hood and visor material, glove material, and footwear material that provide protection from chemical and physical hazards.

Front 787

Primary Protective Garment

Back 787

A garment that is designed, certified, and intended to be the barrier of protection from a specific hazard exposure.

Front 788

Primary Safety (Combustion
Safeguard) Control

Back 788

A safety control that responds directly to flame properties, senses the presence or absence of flame, and, in the event of ignition failure or unintentional flame extinguishment, causes safety shutdown.

Front 789

Primary Safety Control

Back 789

A control with a sensor that is directly responsive to the ignition device attributes necessary for the safe operation of the effect.

Front 790

Primary Suit Materials

Back 790

Liquid splash-protective ensemble and clothing materials limited to the garment material, hood material, visor material, glove material, and footwear material that provide protection from chemical and physical hazards. This includes, in addition to the above materials, the wearer’s respiratory protective equipment when designed to be worn outside the liquid splash-protective ensemble, the umbilical air hose, and all other exposed respiratory equipment materials designed to protect the wearer’s breathing air and air path. Primary materials can be either single layers or composites.

Front 791

Primary Supply

Back 791

That portion of the source equipment that actually supplies the system. (PIP)

Front 792

Primary Trunk Facility

Back 792

That part of a transmission channel connecting all leg facilities to a supervising or subsidiary station. (SIG-SSS)

Front 793

Primary Turret

Back 793

The largest capacity foam turret used to apply primary extinguishing agent.

Front 794

Primary Vent

Back 794

The main vent of the vent system, which is open to the outside atmosphere.

Front 795

Primary Wastewater
Treatment

Back 795

The first major treatment in a wastewater treatment plant, generally consisting of screening, comminution or grinding, grit removal, sedimentation, skimming, or any combination of such unit processes.

Front 796

Prime Contractor

Back 796

The one company contractually responsible for providing central station services to a subscriber as required by this Code. The prime contractor can be either a listed central station or a listed fire alarm service-local company. (SIG-SSS)

Front 797

Prime Mover

Back 797

Part of the power unit component; the energy source that drives the principal power output device of the power unit.

Front 798

Primer

Back 798

A unit, package, or cartridge of explosive material used to initiate other explosives or blasting agents and that contains (1) a detonator or (2) a detonating cord to which is attached a detonator designed to initiate the cord.

Front 799

Primitive Campground

Back 799

A campground that is not accessible to vehicles and no facilities are provided for the comfort or convenience of the campers.

Front 800

Prior Distribution

Back 800

Probability distribution quantifying the analyst’s state of knowledge regarding the parameter to be estimated prior to collection of new data.

Front 801

Private

Back 801

Intended for or limited to the use of some particular person(s) or group.

Front 802

Private Building

Back 802

A building or the portion of a building that normally is not frequented by or open to the public.

Front 803

Private Building

Back 803

Any building or that portion of a building that is normally not frequented by, and not open to, the public.

Front 804

Private Building or Facility
(Accessibility)

Back 804

A building or facility that is a place of public accommodation or a commercial building or facility subject to Title III of the ADA and 28
CFR, Part 36, or a transportation building or facility subject to Title III
of the ADA and 49 CFR 37.45.

Front 805

Private Duress Alarm System

Back 805

A system or portion thereof in which the action to activate the duress signal is known only to the person activating the device.

Front 806

Private Fire Hydrant

Back 806

A valved connection on a water supply system having one or more outlets and that is used to supply hose and fire department pumpers with water on private property. Where connected to a public water system, the private hydrants are supplied by a private service main that begins at the point of service designated by the AHJ, usually at a manually operated valve near the property line.

Front 807

Private Fire Hydrant

Back 807

A valved connection on a water supply system having one or more outlets and that is used to supply hose and fire department pumpers with water on private property. Where connected to a public water system, the private hydrants are supplied by a private service main that begins at the point of service designated by the authority having jurisdiction, usually at a manually operated valve near the property line. [24, 2007]

Front 808

Private Fire Service Main

Back 808

Private fire service main, as used in this standard, is that pipe and its appurtenances on private property (1) between a source of water and the base of the system riser for water-based fire protection systems, (2) between a source of water and inlets to foam-making systems, (3) between a source of water and the base elbow of private hydrants or monitor nozzles, and (4) used as fire pump suction and discharge piping, (5) beginning at the inlet side of the check valve on a gravity
or pressure tank. [13:3.8.1]

Front 809

Private Fire Service Main

Back 809

Private fire service main, as used in this standard, is that pipe and its appurtenances on private property (1) between a source of water and the base of the system riser for water-based fire protection systems, (2) between a source of water and inlets to foam-making systems, (3) between a source of water and the base elbow of private hydrants or monitor nozzles, and (4) used as fire pump suction and discharge piping, (5) beginning at the inlet side of the check valve on a gravity
or pressure tank. [24, 2007]

Front 810

Private Fire Service Main

Back 810

Private fire service main, as used in this standard, is that pipe and its appurtenances on private property (1) between a source of water and the base of the system riser for water-based fire protection systems, (2) between a source of water and inlets to foam-making systems, (3) between a source of water and the base elbow of private hydrants or monitor nozzles, and (4) used as fire pump suction and discharge piping, (5) beginning at the inlet side of the check valve on a gravity
or pressure tank. [24, 2007]

Front 811

Private Garage

Back 811

A building or part thereof not over 1000 ft2 (93 m2) in area, in which only motor vehicles used by the owner or tenants of the building are stored or kept.

Front 812

Private Operating Mode

Back 812

Audible or visible signaling only to those persons directly concerned with the implementation and direction of emergency action initiation and procedure in the area protected by the fire alarm system.
(SIG-NAS)

Front 813

Private Party Tent

Back 813

A tent erected in the yard of a private residence for entertainment, recreation, dining, a reception, or similar function.

Front 814

Private Party Tent

Back 814

A tent erected in the yard of a private residence for entertainment, recreation, dining, a reception, or similar function. [5000, 2006]

Front 815

Private Radio Signaling

Back 815

A radio system under control of the proprietary supervising station. (SIG-SSS)

Front 816

Private Sewer

Back 816

A sewer privately owned and used by one or more properties or owners.

Front 817

Private Street

Back 817

Any accessway normally intended for vehicular use not dedicated as a public street.

Front 818

Probabilistic Model

Back 818

A model whose outputs are probabilities or probability distributions.

Front 819

Probabilistic Safety
Assessment (PSA)

Back 819

A comprehensive evaluation of the risk of a facility or process; also referred to as a probabilistic risk assessment (PRA).

Front 820

Probability

Back 820

The likelihood of an event as expressed as a number between
0 and 1.

Front 821

Probability

Back 821

The likelihood or relative frequency of an event as expressed as a number between 0 and 1.

Front 822

Probability of Area (POA)

Back 822

The chances that the subject, or clues, are in the area being searched.

Front 823

Probability of Detection
(POD)

Back 823

The chances of finding the subject, or clues, given that they are in the area being searched.

Front 824

Probable Maximum Loss
(PML)

Back 824

The loss due to a single fire scenario, which assumes an impairment to one suppression system and a possible delay in manual fire-fighting response.

Front 825

Procedure

Back 825

An organizational directive issued by the authority having jurisdiction or by the department that establishes a specific policy that must be followed.

Front 826

Procedure

Back 826

An organizational directive issued by the authority having jurisdiction or by the department that establishes a specific policy that must be followed. [1561, 2005]

Front 827

Procedure

Back 827

An organizational directive issued by the authority having jurisdiction or by the department that establishes a specific policy that must be followed. [1561, 2008]

Front 828

Procedure

Back 828

The series of actions, conducted in an approved manner and sequence, designed to achieve an intended outcome.

Front 829

Procedure

Back 829

The series of actions, conducted in an approved manner and sequence, designed to achieve an intended outcome. [1081, 2007]

Front 830

Procedure Room

Back 830

Where the proceduralist is using instrumentation that requires constant observation and control.

Front 831

Process and Operations

Back 831

Include the manufacture, storage, and transportation of goods and chemicals; the storage and dispensing of flammable and combustible liquids, solids, and gases; and the manufacture, use, storage, and transportation of explosives, spray painting, milling, and the like.

Front 832

Process Area

Back 832

An outside area complying with the applicable provisions of this code for a process building that is used for the manufacture of fireworks and pyrotechnic articles.

Front 833

Process Building

Back 833

Any building in which propellant, delay composition, or ejection composition is mixed, pressed, or modified in any manner, or in which any modification is made to the model or high power rocket motor prior to its completed form, excluding interim storage, labeling, or packaging of the completed motor in consumer packaging or in a container acceptable to the Department of Transportation.

Front 834

Process Building

Back 834

Any building or any room at a manufacturing facility where fireworks, pyrotechnic articles, or component(s) containing explosive or pyrotechnic compositions are manufactured.

Front 835

Process Hazard Analysis

Back 835

An analysis of a process or system used to identify potential cause and effect relationships and resultant hazards or system failures.

Front 836

Processing Area

Back 836

An area used for preparing records for storage.

Front 837

Process Monitoring, High Oil
Temperature Switch

Back 837

A temperature-actuated device that initiates a signal when oil temperature rises above the limits that are required to maintain the viscosity range recommended by the burner manufacturer.

Front 838

Process Monitoring, Low Oil
Temperature Switch

Back 838

A temperature-actuated device that initiates a signal when the oil temperature falls below the limits that are required to maintain the viscosity range recommended by the burner manufacturer.

Front 839

Process or Processing

Back 839

An integrated sequence of operations.

Front 840

Process or Processing

Back 840

An integrated sequence of operations. [30, 2008]

Front 841

Process Tank

Back 841

A tank containing solvent that is an integral part of the drycleaning machine or an integral part of the drycleaning process.

Front 842

Process Team

Back 842

A group of stakeholders including, but not limited to, representatives from architects, clients, engineers and designers, authorities having jurisdiction, and preservation specialists.

Front 843

Process Team

Back 843

A group of stakeholders including, but not limited to, representatives from architects, clients, engineers and designers, authorities having jurisdiction, and preservation specialists.
[914, 2001]

Front 844

Process Vaporizer

Back 844

A vaporizer that derives its heat from another thermodynamic or chemical process to utilize the refrigeration of the LNG.

Front 845

Procurement Unit

Back 845

A functional unit within the finance/administration section responsible for financial matters involving vendors.

Front 846

Producer

Back 846

An individual who has overall responsibility for the operation and management of the performance where the pyrotechnics are to be used.

Front 847

Product

Back 847

The compliant flame-resistant garment.

Front 848

Product

Back 848

The compliant protective ensemble or the compliant elements and the compliant interface elements of the protective ensemble.

Front 849

Product Conformance
Verification

Back 849

A system whereby a product conformance verification organization determines that a manufacturer has demonstrated the ability to produce a product that complies with the requirements of this standard, authorizes the manufacturer to use a label on listed products that comply with the requirements of this standard, and establishes a follow-up program conducted by the product conformance verification organization as a check on the methods the
manufacturer uses to determine continued compliance of labeled and listed products with the requirements of this standard.

Front 850

Product Conformance
Verification Organization

Back 850

An independent third-party organization that determines product compliance with the requirements of this standard with a labeling/listing/follow-up program.

Front 851

Production

Back 851

All the performances of a musical, dramatic, operatic, or other series of shows.

Front 852

Production Location

Back 852

Any site other than a soundstage or approved production facility used for the purpose of motion picture, television, or commercial production.

Front 853

Production Lot

Back 853

An identifiable series of products manufactured with identical design specifications and identical materials and produced without any alterations to technique or procedure.

Front 854

Production Lot

Back 854

A uniquely identifiable group of solid propellant model or high power rocket motors, motor-reloading kits, or pyrotechnic module(s) possessing the same characteristics resulting from production under common manufacturing conditions using the same batch of materials.

Front 855

Production Studio

Back 855

A building, a portion of a building, or a group of buildings designed and constructed for use by the entertainment industry for the purpose of motion picture, television, or commercial productions, or broadcasting television programs utilizing a soundstage.

Front 856

Production Studio

Back 856

A building, a portion of a building, or a group of buildings designed and constructed for use by the entertainment industry for the purpose of motion picture, television, or commercial productions, or broadcasting television programs utilizing a soundstage. [140, 2008]

Front 857

Product Label

Back 857

A label or marking affixed by the manufacturer to each compliant product or product package, and contains compliance statements, certification statements, general information, care, maintenance, or similar data.

Front 858

Product Label

Back 858

A label or marking affixed by the manufacturer to each compliant product, or product package. Such labels contain compliance statements, certification statements, general information, care, maintenance, or similar data.

Front 859

Product Label

Back 859

A label or marking affixed to a product by the manufacturer that provides general information, warnings, instructions for care and maintenance, and other information.

Front 860

Product Label

Back 860

A label or marking affixed to a product by the manufacturer that provides general information, warnings, instructions for care and maintenance, and other information. [1971, 2007]

Front 861

Product Label

Back 861

A label or marking affixed to each compliant garment, glove, or face protection device by the manufacturer. Such labels contain compliance statements, certification statements, general information, care, maintenance, or similar data. The product label is not the certification organization’s label, symbol, or identifying mark; however, the certification organization’s label, symbol, or identifying mark is attached to or a part of the product label. (See also 3.3.64, Package Product Label.)

Front 862

Product Label

Back 862

A label or marking affixed to each compliant vapor-protective ensemble and compliant ensemble element by the manufacturer. Such labels contain compliance statements, certification statements, general information, care, maintenance, or similar data. The product label is not the certification organization’s label, symbol, or identifying mark; however, the certification organization’s label, symbol, or identifying mark is attached to or a part of the product label.

Front 863

Product Label

Back 863

A label or marking affixed to powered rescue tools and components by the manufacturer containing general information, care, maintenance, or similar data. This product label is not the product conformance verification organization’s label, symbol, or identifying mark; however, the product conformance verification organization’s label, symbol, or identifying mark is attached to it or part of it. (See also
3.2.3, Labeled.)

Front 864

Product Label

Back 864

A marking provided by the manufacturer for each compliant product containing compliant statements, certification statements, manufacturer and model information, or similar data.

Front 865

Product Label

Back 865

A marking provided by the manufacturer for each compliant product containing compliant statements, certification statements, manufacturer and model information, or similar data. The product label is not the certification organization’s label, symbol, or identifying mark; however, the certification organization’s label, symbol, or identifying mark is attached to or is part of the product label.

Front 866

Product Label

Back 866

A marking provided by the manufacturer for each compliant product containing compliant statements, certification statements, manufacturer or model information, or similar data. The product label is not the certification organization’s label, symbol, or identifying mark; however, the certification organization’s label, symbol, or identifying mark is attached to or part of the product label.

Front 867

Product Label

Back 867

A marking provided by the manufacturer of each compliant product containing compliance statements, certification statements,
manufacturer and model information, or similar data. The product label is not the certification organization’s label, symbol, or identifying mark; however, the certification organization’s label, symbol, or identifying mark is attached to or part of the product label.

Front 868

Professional Development

Back 868

A continuous process of training, education, knowledge, and skills enhancement.

Front 869

Professional Engineer

Back 869

A person registered or licensed to practice engineering in a jurisdiction, subject to all laws and limitations imposed by the jurisdiction.

Front 870

Professional Engineer

Back 870

A person registered or licensed to practice engineering in a jurisdiction, subject to all laws and limitations imposed by the jurisdiction. [5000,
2006]

Front 871

Professional Projector

Back 871

A type of projector using 35- or 70-mm film that has a minimum width of
35 mm (13⁄8 in.) and has on each edge 212 perforations per meter (5.4
perforations per inch), or a type using carbon arc, xenon, or other light
source equipment that develops hazardous gases, dust, or radiation.

Front 872

Program

Back 872

A comprehensive strategy that addresses safety issues via educational means.

Front 873

Programmable Controller

Back 873

A digital electronic system designed for use in an industrial environment that uses a programmable memory for the internal storage of
user-oriented instructions for implementing specific functions to control, through digital or analog inputs and outputs, various types of machines
or processes.

Front 874

Programmable Electronic
System (PES)

Back 874

A system based on one or more central processing units (CPUs), connected to sensors or actuators, or both, for the purpose of control or monitoring.

Front 875

Projected Beam-Type Detector

Back 875

A type of photoelectric light obscuration smoke detector wherein the beam spans the protected area. [72, 2007]

Front 876

Projected Beam-Type Detector

Back 876

A type of photoelectric light obscuration smoke detector wherein the beam spans the protected area. (SIG-IDS)

Front 877

Promotion

Back 877

The advancement of a member from one rank to a higher rank by a method such as election, appointment, merit, or examination.

Front 878

Prompt Evacuation Capability

Back 878

The ability of a group to move reliably to a point of safety in a timely manner that is equivalent to the capacity of a household in the general population.

Front 879

Proof Load

Back 879

The application of force to a material as a nondestructive test to verify the performance of that material.

Front 880

Proof of Closure Switch

Back 880

A device that provides feedback that a piece of equipment is in the closed position. For Chapter 5, Single Burner Boilers, when referring to safety shutoff valves, it is a non-field-adjustable switch installed by the valve manufacturer and that activates only after the valve is fully closed.

Front 881

Proof-of-Closure Switch

Back 881

Non-field-adjustable switch installed in a safety shutoff valve by the manufacturer that activates only after the valve is fully closed.

Front 882

Proof-of-Closure Valve

Back 882

A safety shutoff valve equipped with an interlock switch that is actuated only when the valve is fully closed.

Front 883

Proof Test Pressure

Back 883

A pressure equal to at least two times the service test pressure.

Front 884

Propane

Back 884

Any material having a vapor pressure not exceeding that allowed from commercial propane composed predominantly of the following hydrocarbons, either by themselves or as mixtures: propane, propylene, butane (normal butane or iso-butane), and butylene. [1192, 2008]

Front 885

Propane Container

Back 885

A tank or cylinder.

Front 886

Propane (Liquefied Petroleum
Gas, LP-Gas, LPG)

Back 886

Any material having a vapor pressure not exceeding that allowed from commercial propane composed predominantly of the following hydrocarbons, either by themselves or as mixtures: propane, propylene, butane (normal butane or iso-butane), and butylene.

Front 887

Propane Supply Connection

Back 887

The terminal end or connection where a propane supply connector is attached.

Front 888

Propane Supply Connector

Back 888

Tubing or pipe connecting the recreational vehicle to the propane supply source.

Front 889

Propellant

Back 889

An explosive that normally functions by deflagration and is used for propulsion purposes.

Front 890

Propellant

Back 890

Compressed gas used as a prime mover to push water out of storage vessels, through pipe networks, or through distribution components.

Front 891

Propellant

Back 891

The material(s) utilized in a model or high power rocket motor that produces thrust by the discharge of a working fluid generated by combustion, decomposition, change of state, or other operation of such material contained, carried, or stored within the model or high power rocket motor.

Front 892

Propellant-Actuated Device

Back 892

Any tool or special mechanized device or gas generator system that is actuated by a propellant or that releases or directs work through a propellant charge.

Front 893

Propellant Charging Pump
(Charging Pump)

Back 893

A pump used to boost the liquid propellant to the pressure required by the propellant filler, usually 2070 to 8280 kPa (300 to 1200 psi). Tank farm transfer pumps normally supply the suction side of the propellant charging pump at pressures of 100 to 690 kPa (15 to 100 psi) above the propellant’s vapor pressure.

Front 894

Propellant Charging Room (Gas House, Gassing Room)

Back 894

Any room or enclosure in which the propellant is added to the aerosol containers. The definition includes prefabricated gas houses and enclosures.

Front 895

Propellant Composition

Back 895

A chemical mixture that, upon burning, produces thrust to propel a recoverable aero model.

Front 896

Propellant Filler (Gasser, Propellant Charger)

Back 896

A machine that adds the propellant to the aerosol container.

Front 897

Propellant Gas

Back 897

A gas pressurizing an agent container.

Front 898

Proper(ly)

Back 898

In accordance with the manufacturer’s specifications or as recommended by the manufacturer.

Front 899

Property

Back 899

A thing of value.

Front 900

Property Inventory

Back 900

Information known about a property before an emergency occurs.

Front 901

Property Line

Back 901

Line dividing one lot from another, or from a street or other public space.

Front 902

Property Use

Back 902

The use to which a property is put.

Front 903

Proportional Mixer

Back 903

A mixer comprised of an inspirator that, when supplied with air,
draws all the fuel gas necessary for combustion into the airstream, and
a governor, zero regulator, or ratio valve that reduces incoming fuel
gas pressure to approximately atmospheric.

Front 904

Proportioning

Back 904

The continuous introduction of foam concentrate at the recommended ratio into the water stream to form foam solution.

Front 905

Proportioning

Back 905

The continuous introduction of foam concentrate at the recommended ratio into the water stream to form foam solution. [11,
2005]

Front 906

Proportioning

Back 906

The introduction of water additive concentrate at the recommended ratio into the water stream to form a water additive solution.

Front 907

Proportioning Methods for
Foam Systems

Back 907

The methods of proportioning used to create the correct solution of water and foam liquid concentrate.

Front 908

Proposed Design

Back 908

A design developed by a design team and submitted to the authority having jurisdiction for approval.

Front 909

Proposed Design

Back 909

A design developed by a design team and submitted to the authority having jurisdiction for approval. [101, 2003]

Front 910

Proposed Design

Back 910

A design developed by a design team and submitted to the authority having jurisdiction for approval. [101, 2009]

Front 911

Proprietary Information

Back 911

Information regarding compounds or ingredients used in a process or production that do not qualify as trade secrets but that provide an industry or business with a competitive advantage.

Front 912

Proprietary Monitoring Station

Back 912

A monitoring station having the same ownership as the property(ies)
being monitored.

Front 913

Proprietary Station

Back 913

A monitoring station under the same ownership as the property(ies)
being monitored.

Front 914

Proprietary Supervising
Station

Back 914

A supervising station under the same ownership as the protected premises fire alarm system(s) that it supervises (monitors) and to which alarm, supervisory, or trouble signals are received and where personnel are in attendance at all times to supervise operation and investigate signals. (SIG-SSS)

Front 915

Proprietary Supervising
Station Fire Alarm System

Back 915

An installation of fire alarm systems that serves contiguous and noncontiguous properties, under one ownership, from a proprietary supervising station located at the protected premises, or at one of multiple non-contiguous protected premises, at which trained, competent personnel are in constant attendance. This includes the protected premises fire alarm system(s): proprietary supervising station; power supplies; signal-initiating devices; initiating device circuits; signal notification appliances; equipment for the automatic, permanent visual recording of signals; and equipment for initiating the operation of emergency building control services. (SIG-SSS)

Front 916

Proprietary Supervising
Station Service

Back 916

The use of a system or a group of systems including the protected premises fire alarm system(s) in which the operations of circuits and devices are signaled to, recorded in, and supervised from a supervising station under the same ownership as the protected premises that has competent and experienced operators who, upon receipt of a signal, take such action as required by this Code. Related activities at the protected premises, such as equipment installation, inspection, testing, maintenance, and runner service, are the responsibility of the owner. Proprietary supervising station service is controlled and operated by the entity whose properties are the protected premises. (SIG-SSS)

Front 917

Proscenium

Back 917

The wall and arch that separates the stage from the auditorium
(house).

Front 918

Proscenium Wall

Back 918

The wall that separates the stage from the audience or house. [5000,
2006]

Front 919

Proscenium Wall

Back 919

The wall that separates the stage from the auditorium or house.

Front 920

Prospective Fault Current

Back 920

The highest level of fault current that can occur at a point on a circuit. This is the fault current that can flow in the event of a zero impedance short-circuit and if no protection devices operate.

Front 921

Protect

Back 921

The use of any or all available measures to limit fire impact.

Front 922

Protected Aboveground Tank

Back 922

An atmospheric aboveground storage tank with integral secondary containment and thermal insulation that has been evaluated for resistance to physical damage and for limiting the heat transferred to the primary tank when exposed to a hydrocarbon pool fire and is listed in accordance with ANSI/UL 2085, Standard for Protected Aboveground Tanks for Flammable and Combustible Liquids, or an equivalent test procedure.

Front 923

Protected Aboveground Tank

Back 923

An atmospheric aboveground storage tank with integral secondary containment and thermal insulation that has been evaluated for resistance to physical damage and for limiting the heat transferred to the primary tank when exposed to a hydrocarbon pool fire and is listed in accordance with ANSI/UL 2085, Standard for Protected Aboveground Tanks for Flammable and Combustible Liquids, or an equivalent test procedure. [30, 2008]

Front 924

Protected Area

Back 924

A protected premises or an area within a protected premises that is provided with means to prevent an unwanted event.

Front 925

Protected Enclosure

Back 925

An enclosure pressurized by a protective gas.

Front 926

Protected Equipment

Back 926

The electrical equipment internal to the protected enclosure.

Front 927

Protected Premises

Back 927

The physical location protected by a fire alarm system, fire suppression system, or both.

Front 928

Protected Premises

Back 928

The physical location protected by a fire alarm system. (SIG-PRO)

Front 929

Protected Premises

Back 929

The physical location protected by a [ ] system. [72, 2007]

Front 930

Protected Premises (Local) Control Unit

Back 930

A fire alarm control unit that serves the protected premises or a portion of the protected premises. (SIG-PRO)

Front 931

Protected Premises (Local) Fire Alarm System

Back 931

A fire alarm system located at the protected premises. (SIG-PRO)

Front 932

Protected Steel

Back 932

Structural steel protected by the application of a material such as concrete to maintain the stability of the steel under fire conditions for a specified period of time.

Front 933

Protected Structure

Back 933

A structure equipped with operational automatic sprinkler systems or Class I, II, or III wet standpipe or dry standpipe systems for fire department use.

Front 934

Protected Volume

Back 934

Volume enclosed by the building elements around the protected enclosure, minus the volume of any permanent impermeable building elements within the enclosure.

Front 935

Protection

Back 935

A device, material, or system that provides a specified level of safety to achieve a desired outcome.

Front 936

Protection

Back 936

Measures and actions taken to prevent or minimize loss from fire, arson, vandalism, theft, and similar hazards to persons and property.

Front 937

Protection

Back 937

Those measures and actions taken to prevent or minimize loss from fire, arson, vandalism, theft, and similar hazards to persons and property.

Front 938

Protection by Encapsulation
“mD”

Back 938

Type of protection where electrical parts that could cause ignition of a mixture of combustible dust or fibers/flyings in air are protected by enclosing them in a compound in such a way that the explosive atmosphere cannot be ignited.

Front 939

Protection by Enclosure “tD”

Back 939

Type of protection for explosive dust atmospheres where electrical apparatus is provided with an enclosure providing dust ingress protection and a means to limit surface temperatures.

Front 940

Protection by Intrinsic Safety
“iD”

Back 940

Type of protection where any spark or thermal effect is incapable of causing ignition of a mixture of combustible dust, fibers, or flyings in air under prescribed test conditions.

Front 941

Protection by Pressurization
“pD”

Back 941

Type of protection that guards against the ingress of a mixture of combustible dust or fibers/flyings in air into an enclosure containing electrical equipment by providing and maintaining a protective gas atmosphere inside the enclosure at a pressure above that of the external atmosphere.

Front 942

Protection for Exposures

Back 942

Fire protection for structures on property adjacent to an aerosol product manufacturing or storage facility. Fire protection for such structures shall be acceptable where located either within the jurisdiction of any public fire department or adjacent to plants having private fire brigades capable of providing cooling water streams on
the adjacent property.

Front 943

Protection for Exposures

Back 943

Fire protection for structures on property adjacent to an organic coatings manufacturing facility that is provided by (1) a public fire department or (2) a private fire brigade maintained on the property adjacent to the liquid storage that is capable of providing cooling water streams to protect the property adjacent to the liquid storage.

Front 944

Protection for Exposures

Back 944

Fire protection for structures on property adjacent to liquid storage that is provided by (1) a public fire department or (2) a private fire brigade maintained on the property adjacent to the liquid storage, either of which is capable of providing cooling water streams to protect the property adjacent to the liquid storage.

Front 945

Protection for Exposures

Back 945

Fire protection for structures on property adjacent to liquid storage that is provided by (1) a public fire department or (2) a private fire brigade maintained on the property adjacent to the liquid storage, either of which is capable of providing cooling water streams to protect the property adjacent to the liquid storage.
[30, 2008]

Front 946

Protection in Place

Back 946

The strategy and tactics used to protect or shelter people and/or animals from an advancing wildland fire in a safe area, as an alternative to evacuation.

Front 947

Protection Level 2

Back 947

Buildings, and portions thereof, containing quantities of hazardous materials exceeding the maximum allowable quantities of high hazard Level 2 contents permitted in control areas shall comply with applicable regulations for Protection Level 2, as set forth in
NFPA 5000. [5000, 2006]

Front 948

Protection Level 3

Back 948

Buildings, and portions thereof, containing quantities of hazardous materials exceeding the maximum allowable quantities of high hazard Level 3 contents permitted in control areas shall comply with applicable regulations for Protection Level 3, as set forth in
NFPA 5000. [5000, 2006]

Front 949

Protection Level 4

Back 949

Buildings, and portions thereof, containing quantities of hazardous materials exceeding the maximum allowable quantities of high hazard Level 4 contents permitted in control areas shall comply with applicable regulations for Protection Level 4, as set forth in
NFPA 5000.[5000, 2006]

Front 950

Protection Level

Back 950

A tier of building safety that exceeds the construction requirements for control areas to accommodate quantities of hazardous materials in excess of those permitted using the control area concept. (See Section
34.3).

Front 951

Protection Levels

Back 951

Construction-related controls specified for buildings, and portions thereof, where high hazard contents are stored, used, or handled in quantities greater than the maximum allowable quantity per control area as specified in NFPA 5000. The requirements for construction vary with the type of hazardous materials employed.

Front 952

Protective Bonding Circuit

Back 952

The whole of the protective conductors and conductive parts used for protection against electric shock in the event of an insulation failure.

Front 953

Protective Clothing

Back 953

Equipment designed to protect the wearer from heat and/or from hazardous materials, or from the hazardous component of a weapon of mass destruction contacting the skin or eyes.

Front 954

Protective Clothing

Back 954

Equipment designed to protect the wearer from heat and/or hazardous materials contacting the skin or eyes. [472, 2008]

Front 955

Protective Clothing Material

Back 955

Any material or composite used in CBRN protective ensemble and ensemble elements for the purpose of protecting parts of the wearer’s body against chemical/biological terrorism agents, or against physical hazards.

Front 956

Protective Conductor

Back 956

A conductor required by some measures for protection against electric shock for electrically connecting any of the following parts: exposed conductive parts, extraneous conductive parts, or main (grounding) earthing terminal. Also identified in some instances as the protective external (PE) conductor. (See also 29.1.6.15, Equipment-Grounding Conductor.)

Front 957

Protective Conductor

Back 957

A conductor required by some measures for protection against electric shock for electrically connecting exposed conductive parts, extraneous conductive parts, or main earthing terminal.

Front 958

Protective Ensemble

Back 958

Multiple elements of compliant protective clothing and equipment that when worn together provide protection from some risks, but not all risks, of emergency incident operations.

Front 959

Protective Ensemble(s) and
Ensemble Elements

Back 959

An abbreviated term for CBRN Terrorism Incident Protective
Ensembles.

Front 960

Protective Footwear

Back 960

An abbreviated term for CBRN Terrorism Incident Protective
Footwear. (See also 3.3.10, CBRN Terrorism Incident Protective Footwear.)

Front 961

Protective Garment(s)

Back 961

An abbreviated term for CBRN Terrorism Incident Protective Garment(s). [See also 3.3.12, CBRN Terrorism Incident Protective Garment(s).]

Front 962

Protective Gas

Back 962

The gas used to maintain pressurization or to dilute a flammable gas or vapor.

Front 963

Protective Gas Supply

Back 963

The compressor, blower, or compressed gas container that provides the protective gas at a positive pressure. The supply includes inlet (suction) pipes or ducts, pressure regulators, outlet pipes or ducts, and any supply valves not adjacent to the pressurized enclosure.

Front 964

Protective Glove(s)

Back 964

An abbreviated term for CBRN Terrorism Incident Protective
Glove(s). [See also 3.3.13, CBRN Terrorism Incident Protective Glove(s).]

Front 965

Protective Housing

Back 965

An enclosure that surrounds the laser or laser system that prevents access to laser radiation above the applicable maximum permissible exposure (MPE) level.

Front 966

Protective Signaling System

Back 966

Any alarm or system of alarms designed to give notification or
warning, whether audible at the location or at a central receiving area,
of the existence of a probable emergency or other unusual
occurrence that might involve life safety or property protection.

Front 967

Protective Signaling System

Back 967

Any alarm or system of alarms designed to give notification or
warning, whether audible at the location or at a central receiving area,
of the existence of a probable emergency or other unusual
occurrence that might involve life safety or property protection. [601,
2005]

Front 968

Protective System

Back 968

A method of protecting employees from cave-ins, from material that could fall or roll from an excavation face or into an excavation, or from the collapse of adjacent structures.

Front 969

Protective System

Back 969

A method of protecting employees from cave-ins, from material that could fall or roll from an excavation face or into an excavation, or from the collapse of adjacent structures.
[1670, 2004]

Front 970

Protective Systems, Equipment, or Apparatus

Back 970

Automatic sprinklers, standpipes, carbon dioxide systems, clean agent systems, automatic covers, and other devices used for extinguishing fires.

Front 971

Protein Foam

Back 971

A protein-based foam concentrate that is stabilized with metal salts to make a fire-resistant foam blanket. [403, 2003]

Front 972

Protein Foam Concentrate

Back 972

Concentrate consisting primarily of products from a protein hydrolysate, plus stabilizing additives and inhibitors to protect against freezing, to prevent corrosion of equipment and containers, to resist bacterial decomposition, to control viscosity, and to otherwise ensure readiness for use under emergency conditions.

Front 973

Protein Foam Concentrate

Back 973

A concentrate consisting primarily of products from a protein hydrolysate, plus stabilizing additives and inhibitors to protect against freezing, to prevent corrosion of equipment and containers, to resist bacterial decomposition, to control viscosity, and otherwise to ensure readiness for use under emergency conditions.

Front 974

Protein Foam Concentrate

Back 974

Concentrate consisting primarily of products from a protein hydrolysate, plus stabilizing additives and inhibitors to protect against freezing, to prevent corrosion of equipment and containers, to resist bacterial decomposition, to control viscosity, and to otherwise ensure readiness for use under emergency conditions. [11, 2005]

Front 975

Protein Foam (P)

Back 975

A protein-based foam concentrate that is stabilized with metal salts to make a fire-resistant foam blanket.

Front 976

Protein (P) Foam

Back 976

A protein-based foam concentrate that is stabilized with metal salts to make a fire-resistant foam blanket.

Front 977

Protocol

Back 977

A description of the specific procedures and methodologies by which a task or tasks are to be accomplished.

Front 978

Protocol

Back 978

A guideline for a series of sequential steps describing the precise patient treatment.

Front 979

Protocol

Back 979

Protocols define the prehospital care management of specific patient problems.

Front 980

Prototype Vehicle

Back 980

The first vehicle of a unique vehicle configuration built to establish its performance capability and the performance capability of all subsequent vehicles manufactured from its drawings and parts list.

Front 981

Prove

Back 981

To establish by measurement or test the existence of a specified condition such as flame, level, flow, pressure, or position.

Front 982

Proved Low-Fire Start
Interlock

Back 982

A burner start interlock in which a control sequence ensures that a high-low or modulated burner is at a reduced firing rate for reliable ignition before the burner can be ignited.

Front 983

Proved Pilot

Back 983

A pilot whose flame is supervised by a combustion safeguard that senses the presence of the pilot flame.

Front 984

Proven Pilot

Back 984

A pilot flame supervised by a primary safety control.

Front 985

Proven Ventilation

Back 985

A supply of fresh air to, and exhaust from, a furnace that provides a vigorous, distributed flow of air through all sections of the furnace, such that flammable vapor concentrations in all parts of the furnace or furnace enclosure are maintained below the lower explosive limit at all times.

Front 986

Provide Movement Means

Back 986

Provide the facilities necessary for a safe path through which the
exposed can be relocated.

Front 987

Provide Safe Destination (for the Exposed)

Back 987

Provide a safe location to receive the exposed.

Front 988

Provide Separation (Fuel
Transport)

Back 988

Provide and maintain a separation between the fuel and the source by measures acting only upon the fuel.

Front 989

Provide Separation (Source
Transport)

Back 989

Provide and maintain a separation between the source and the fuel by measures acting only upon the source.

Front 990

Provide Structural Stability

Back 990

Maintain the effectiveness of building construction features and built-in equipment.

Front 991

Proximate Audience

Back 991

An audience closer to pyrotechnic devices than permitted by
NFPA 1123, Code for Fireworks Display.

Front 992

Proximate Cause

Back 992

The cause that directly produces the effect without the intervention of any other cause.

Front 993

Proximity Fire Fighting

Back 993

Specialized fire fighting operations that can include the activities of rescue, fire suppression, and property conservation at incidents involving fires producing high levels of radiant heat as well as conductive and convective heat.

Front 994

Proximity Fire Fighting

Back 994

Specialized fire-fighting operations that can include the activities of rescue, fire suppression, and property conservation at incidents involving fires producing very high levels of conductive, convective, and radiant heat such as aircraft fires, bulk flammable gas fires, and bulk flammable liquid fires.

Front 995

Proximity Fire Fighting

Back 995

Specialized fire-fighting operations that can include the activities of rescue, fire suppression, and property conservation at incidents involving fires producing very high levels of radiant heat as well as conductive and convective heat.

Front 996

Proximity Fire Fighting
Protective Coat

Back 996

The element of the protective ensemble that provides protection to the upper torso and arms, excluding the hands and head.

Front 997

Proximity Fire Fighting
Protective Coat

Back 997

The element of the protective ensemble that provides protection to upper torso and arms, excluding the hands and head.

Front 998

Proximity Fire Fighting
Protective Coverall

Back 998

The element of the protective ensemble that provides protection to the torso, arms, and legs, excluding the head, hands and feet.

Front 999

Proximity Fire Fighting
Protective Ensemble

Back 999

Multiple elements of compliant protective clothing and equipment that when worn together provide protection from some risks, but not all risks, of emergency incident operations.

Front 1000

Proximity Fire Fighting Protective Ensemble with Optional CBRN Terrorism Agent Protection

Back 1000

A compliant proximity fire fighting protective ensemble that is also certified as an entire ensemble to meet the optional requirements for protection from specific CBRN terrorism agents.

Front 1001

Proximity Fire Fighting Protective Ensemble with Optional CBRN Terrorism Agent Protection

Back 1001

A compliant proximity fire fighting protective ensemble that is also certified as an entire ensemble to meet the optional requirements for protection from specific chemical, biological, and radiological particulate terrorism agents.

Front 1002

Proximity Fire Fighting
Protective Footwear

Back 1002

The element of the protective ensemble that provides protection to the foot, ankle, and lower leg.

Front 1003

Proximity Fire Fighting
Protective Garment

Back 1003

The coat, trouser, and coverall elements of the protective ensemble.

Front 1004

Proximity Fire Fighting
Protective Garments

Back 1004

The coat, trouser, and coverall elements of the protective ensemble.

Front 1005

Proximity Fire Fighting
Protective Glove

Back 1005

The element of the protective ensemble that provides protection to the hand and wrist.

Front 1006

Proximity Fire Fighting
Protective Helmet

Back 1006

The element of the protective ensemble that provides protection to the head.

Front 1007

Proximity Fire Fighting
Protective Shroud

Back 1007

The component of the helmet element that provides limited protection to the helmet/coat/SCBA interface area.

Front 1008

Proximity Fire Fighting
Protective Shroud

Back 1008

The component of the helmet that provides limited protection to the helmet/coat interface area.

Front 1009

Proximity Fire Fighting
Protective Trouser

Back 1009

The element of the protective ensemble that provides protection to the lower torso and legs, excluding the ankles and feet.

Front 1010

Proximity Fire Fighting
Protective Trousers

Back 1010

The element of the protective ensemble that provides protection to the lower torso and legs, excluding the ankles and feet.

Front 1011

Proximity Personal Protective
Equipment (PrPPE)

Back 1011

A protective ensemble consisting of approved proximity protective clothing, self-contained breathing apparatus (SCBA), and personal alert safety systems (PASS).

Front 1012

psi

Back 1012

Pounds per square inch.

Front 1013

psi

Back 1013

Pounds per square inch. [1901, 2003]

Front 1014

psi

Back 1014

Pounds per square inch. [58, 2008]

Front 1015

psi

Back 1015

Pounds per square inch gauge.

Front 1016

Psia

Back 1016

Pounds per square inch absolute.

Front 1017

psia

Back 1017

Pounds per square inch absolute. [51, 2002]

Front 1018

psia

Back 1018

Pounds per square inch, absolute. [58, 2008]

Front 1019

psia

Back 1019

Pounds per square inch absolute, a unit of pressure measurement with zero pressure as the base or reference pressure. (HYP)

Front 1020

Psig

Back 1020

Pounds per square inch gauge.

Front 1021

psig

Back 1021

Pounds per square inch gauge. [51, 2002]

Front 1022

psig

Back 1022

Pounds per square inch gauge. [58, 2008]

Front 1023

psig

Back 1023

Pounds per square inch gauge, a unit of pressure measurement with atmospheric pressure as the base or reference pressure. (HYP)

Front 1024

Psychiatric Hospital

Back 1024

A building used exclusively for the psychiatric care, on a 24-hour basis, of four or more inpatients.

Front 1025

PTO

Back 1025

Power takeoff.

Front 1026

PTO

Back 1026

Power takeoff. [1901, 2003]

Front 1027

Public

Back 1027

Of, pertaining to, or affecting a population or a community as a whole; open to all persons.

Front 1028

Public Alarm Reporting
System

Back 1028

A system of alarm-initiating devices, receiving equipment, and connecting circuits, other than a public telephone network, used to transmit alarms from street locations to the communications center.

Front 1029

Public Alerting System Alerting
Appliance (PASAA)

Back 1029

A device that receives a signal from a public alerting system (PAS) and broadcasts an audible and visual alarm that could be in the form of text or speech.

Front 1030

Public Alerting System (PAS)

Back 1030

A system that creates, transmits, and displays a public alert message or sounds a signal, or both, that is intended to alert the public to situations that could result in loss of life, endanger their health, or destroy property.

Front 1031

Public Alert Signal

Back 1031

A signal or message delivered to a person or device indicating the existence of a situation that affects public safety.

Front 1032

Public Building

Back 1032

A building or part of a building that is not a private building.

Front 1033

Public Building or Facility
(Accessibility)

Back 1033

A building or facility, or portion of a building or facility, designed, constructed, or altered by, on behalf of, or for the use of, a public entity subject to Title II of the ADA and 28 CFR, Part 35, or to Title II of the ADA and 49 CFR 37.41 or 37.43.

Front 1034

Public Conveyance

Back 1034

Any railroad car, streetcar, ferry, cab, bus, airplane, or other vehicle that carries passengers for hire.

Front 1035

Public Conveyance

Back 1035

Any railroad car, streetcar, ferry, cab, bus, airplane, or other vehicle that carries passengers for hire. [495, 2006]

Front 1036

Public Duress Alarm System

Back 1036

A system or portion thereof in which the ability to activate a duress signal is available to any person at the protected premises.

Front 1037

Public Entrance (Accessibility)

Back 1037

An entrance that is not a service entrance or a restricted entrance.

Front 1038

Public Fire Alarm Reporting
System

Back 1038

A system of alarm-initiating devices, receiving equipment, and communication infrastructure (other than a public telephone network) used to transmit alarms to the public fire service communications center to provide any combination of manual or auxiliary fire alarm service. (SIG-PRS)

Front 1039

Public Fire and Life Safety
Education

Back 1039

Comprehensive community fire and injury prevention programs designed to eliminate or mitigate situations that endanger lives, health, property, or the environment.

Front 1040

Public Fire and Life Safety
Education Strategy

Back 1040

An organization’s comprehensive plan that is designed, through public fire and life safety education programs, campaigns, and initiatives, to eliminate or mitigate risks that endanger lives, health, property, or the environment.

Front 1041

Public Fire and Life Safety
Educator I

Back 1041

The individual who has demonstrated the ability to coordinate and deliver existing educational programs and information.

Front 1042

Public Fire and Life Safety
Educator II

Back 1042

The individual who has demonstrated the ability to prepare educational programs and information to meet identified needs.

Front 1043

Public Fire and Life Safety
Educator III

Back 1043

The individual who has demonstrated the ability to create, administer, and evaluate educational programs and information.

Front 1044

Public Fire Department

Back 1044

An organization providing rescue, fire suppression, emergency medical services, and related activities to the public.

Front 1045

Public Fire Service
Communications Center

Back 1045

The building or portion of the building used to house the central operating part of the fire alarm system; usually the place where the necessary testing, switching, receiving, transmitting, and power supply devices are located. (SIG-PRS)

Front 1046

Public Highway

Back 1046

Any road, street, or way, whether on public or private property, open to public travel.

Front 1047

Public Hydrant

Back 1047

A valved connection on a water supply system having one or more outlets and that is used to supply hose and fire department pumpers with water.

Front 1048

Public Hydrant

Back 1048

A valved connection on a water supply system having one or more outlets and that is used to supply hose and fire department pumpers with water. [24, 2007]

Front 1049

Public Information Officer

Back 1049

A member of the command staff responsible for interfacing with the public and media or with other agencies with incident-related information requirements.

Front 1050

Public Information Officer

Back 1050

The individual who has demonstrated the ability to conduct media interviews and prepare news releases and media advisories.

Front 1051

Publicly Accessible Fire Alarm
Box

Back 1051

An enclosure, accessible to the public, housing a manually operated transmitter used to send an alarm to the public fire service communications center. (SIG-PRS)

Front 1052

Public Operating Mode

Back 1052

Audible or visible signaling to occupants or inhabitants of the area protected by the fire alarm system. (SIG-NAS)

Front 1053

Public Pool

Back 1053

Any pool that is not a residential pool.

Front 1054

Public Safety Agency

Back 1054

Organizations providing law enforcement, emergency medical, fire, rescue, communications, and related support services. The term public safety agency shall include any public, governmental, private, industrial, or military organization engaged in one or more of these activities.

Front 1055

Public Safety Agency
Monitoring Station

Back 1055

A monitoring station that is owned by a governmental body that monitors nongovernmental properties.

Front 1056

Public Safety Answering Point
(PSAP)

Back 1056

A facility in which 9-1-1 calls are answered.

Front 1057

Public Safety Answering Point
(PSAP)

Back 1057

A facility in which 9-1-1 calls are answered, either directly or through rerouting. [1221:3.3]

Front 1058

Public Safety Answering Point
(PSAP)

Back 1058

A facility in which 9-1-1 or other emergency calls are answered, either directly or through rerouting.

Front 1059

Public Safety Diver

Back 1059

An individual who performs public safety diving.

Front 1060

Public Safety Diving

Back 1060

Underwater diving, related to team operations and training, performed by any member, group, or agency of a community or government-recognized public safety diving or water rescue team.

Front 1061

Public Safety Diving

Back 1061

Underwater diving, related to team operations and training, performed by any member, group, or agency of a community or government-recognized public safety diving or water rescue team. [1670, 2004]

Front 1062

Public Safety Element

Back 1062

A section of a land use plan that describes the hazards to public safety and how they are to be mitigated.

Front 1063

Public Safety Telecommunicator Candidate

Back 1063

The person who has fulfilled the entrance requirements of Chapter 1 of this document but who has not met the requirements of Public Safety Telecommunicator I.

Front 1064

Public Safety
Telecommunicator I

Back 1064

The initial contact in managing requests for services who obtains and prepares the pertinent information for the allocation of public safety resources. The Public Safety Telecommunicator I makes independent decisions, conveys information, and provides referrals; works in cooperation with a Public Safety Telecommunicator II.

Front 1065

Public Safety
Telecommunicator II

Back 1065

Prioritizes, initiates, and coordinates the response of public safety agencies; manages the flow of incident related information to and from field units and/or public safety resources; monitors status of field units and assigns additional resources as requested and/or required.

Front 1066

Public Safety
Telecommunicator III

Back 1066

Serves as a specialized telecommunicator who responds to the scene of emergency, manages the flow of information from command center to communications center, and documents requests for and deployment of specialized teams, equipment or agencies.

Front 1067

Public Spa

Back 1067

Any spa that is intended to be used for bathing and is operated by an owner, licensee, or concessionaire, regardless of whether a fee is charged for use.

Front 1068

Public Space

Back 1068

Any space that is dedicated for use by and accessible to the public.

Front 1069

Public Street

Back 1069

A thoroughfare that has been dedicated for vehicular use by the public.

Front 1070

Public Switched Telephone
Network

Back 1070

An assembly of communications facilities and central office equipment operated jointly by authorized common carriers that provides the general public with the ability to establish communications channels via discrete dialing codes. (SIG-SSS)

Front 1071

Public Use (Accessibility)

Back 1071

Interior or exterior rooms, spaces, or elements that are made available to the public.

Front 1072

Public Water Supply

Back 1072

A municipally or privately owned and approved community water supply system designed to distribute water to consumers within a defined geographical area.

Front 1073

Public Way

Back 1073

A street, alley, or other similar parcel of land essentially open to the outside air deeded, dedicated, or otherwise permanently appropriated to the public for public use and having a clear width and height of not less than 10 ft (3050 mm).

Front 1074

Public Way

Back 1074

A street, alley, or other similar parcel of land essentially open to the outside air deeded, dedicated, or otherwise permanently appropriated to the public for public use and having a clear width and height of not less than 10 ft (3050 mm). [101, 2009]

Front 1075

Pulley

Back 1075

A device with a free-turning, grooved metal wheel (sheave) used to reduce rope friction. Side plates are available for a carabiner to be attached.

Front 1076

Pulling Force

Back 1076

The force to pull that is generated by a powered rescue tool and that is measured or calculated at the standard production pulling attachment points on the tool.

Front 1077

Pulsed Laser

Back 1077

A laser that delivers its energy in the form of a single pulse or a train of pulses; a single pulse or a train of pulses with a pulse duration of
<0.25 second.

Front 1078

Pulverized Coal

Back 1078

Coal that is reduced to a size such that at least 50 percent can pass through a 200-mesh (74 microns) sieve.

Front 1079

Pulverized Fuel

Back 1079

Solid fuel that is reduced to a size such that at least 50 percent will pass through a 200-mesh (74 microns) sieve.

Front 1080

Pulverized Fuel Pump

Back 1080

A device or system for transporting fuel mechanically or pneumatically by utilizing minimum airflow.

Front 1081

Pulverizer

Back 1081

A machine for reducing the particle size of a solid fuel so that it burns in suspension.

Front 1082

Pulverizer Air

Back 1082

Air or inert gas that is introduced into the pulverizer to dry the fuel, aid in pulverization and classification, and convey the pulverized fuel from the pulverizer.

Front 1083

Pump

Back 1083

A mechanical device that transfers or raises, or transfers and raises, the pressure of a fluid (water).

Front 1084

Pump-Down Factor

Back 1084

The product of the time to pump down to a given pressure and the displacement (for a service factor of 1) divided by the volume of the system (F = tD/V).

Front 1085

Pumper

Back 1085

Fire apparatus with a permanently mounted fire pump of at least 750 gpm (3000 L/min) capacity, water tank, and hose body whose primary purpose is to combat structural and associated fires.

Front 1086

Pumper

Back 1086

Fire apparatus with a permanently mounted fire pump of at least 750 gpm (3000 L/min) capacity, water tank, and hose body whose primary purpose is to combat structural and associated fires.
[1901, 2003]

Front 1087

Pumper Outlet

Back 1087

The hydrant outlet intended for use by fire departments for taking supply from the hydrant for pumpers.

Front 1088

Pumper Outlet

Back 1088

The hydrant outlet intended for use by fire departments for taking supply from the hydrant for pumpers. [24, 2007]

Front 1089

Pump Fluid

Back 1089

The operating fluid used in diffusion pumps or in liquid-sealed mechanical pumps (sometimes called working medium, working fluid, or pump oil).

Front 1090

Pumping Liquid Level

Back 1090

The level, with respect to the pump, of the body of liquid from which it takes suction when the pump is in operation. Measurements are made the same as with the static liquid level.

Front 1091

Pumping Station

Back 1091

A structure that contains pumps and appurtenant piping, valves, and other mechanical and electrical equipment for pumping wastewater or other liquid.

Front 1092

Pumping System

Back 1092

A pump, the piping, and associated devices mounted permanently on a piece of fire apparatus for the purpose of delivering a fire stream.

Front 1093

Pump Operator

Back 1093

The fire apparatus driver/operator who has met the requirements of Chapter 5 for the operation of apparatus equipped with an attack or fire pump.

Front 1094

Pump Operator’s Panel

Back 1094

The area on a fire apparatus that contains the gauges, controls, and other instruments used for operating the pump.

Front 1095

Pump Operator’s Panel

Back 1095

The area on a fire apparatus that contains the gauges, controls, and other instruments used for operating the pump. [1901, 2003]

Front 1096

Pump Operator’s Position

Back 1096

The location from which the pump operator operates the pump.

Front 1097

Pump Operator’s Position

Back 1097

The location from which the pump operator operates the pump. [1901, 2003]

Front 1098

Pump Operator’s Position

Back 1098

The location from which the pump operator operates the pump. [1906, 2006]

Front 1099

Pump Proportioner (Around-the-Pump Proportioner)

Back 1099

A system that uses a venturi eductor installed in a bypass line between the discharge and suction side of a water pump and suitable variable or fixed orifices to induct foam concentrate from a tank or container into the pump suction line.

Front 1100

Pump Room

Back 1100

A room or enclosure outside the propellant charging rooms in which flammable propellant charging pumps and, in some cases, vacuum pumps are located.

Front 1101

Pump Room

Back 1101

A space that contains mechanical equipment for handling, pumping, or transferring flammable or combustible liquids as a fuel.

Front 1102

Puncture-Resistant Device

Back 1102

A reinforcement to the bottom of protective footwear that is designed to provide puncture resistance.

Front 1103

Punitive

Back 1103

Inflicting or aiming to inflict punishment or sanctions.

Front 1104

Purchase Line (Hand Line)

Back 1104

The line attached to the counterweight for manual opening and closing of the fire safety curtain.

Front 1105

Purchaser

Back 1105

The authority having responsibility for the specification and acceptance of the apparatus.

Front 1106

Purchaser

Back 1106

The authority having responsibility for the specification and acceptance of the apparatus. [1901, 2003]

Front 1107

Purchasing Authority

Back 1107

The agency that has the sole responsibility and authority for negotiating, placing, and, where necessary, modifying each and every solicitation, purchase order, or other award issued by a governing body.

Front 1108

Purchasing Authority

Back 1108

The agency that has the sole responsibility and authority for negotiating, placing, and, where necessary, modifying each and every solicitation, purchase order, or other award issued by a governing body. [1901, 2003]

Front 1109

Purge

Back 1109

A flow of air or an inert medium at a rate that will effectively remove any gaseous or suspended combustibles and replace them with the purging medium.

Front 1110

Purge

Back 1110

The replacement of a flammable, indeterminate, or
high-oxygen-bearing atmosphere with another gas that, when
complete, results in a nonflammable final state.

Front 1111

Purge

Back 1111

To free a gas conduit of air or gas, or a mixture of gas and air.

Front 1112

Purged and Pressurized

Back 1112

The process of (1) purging, supplying an enclosure with a protective gas at a sufficient flow and positive pressure to reduce the concentration of any flammable gas or vapor initially present to an acceptable level; and (2) pressurization, supplying an enclosure with a protective gas with or without continuous flow at sufficient pressure to prevent the entrance of a flammable gas or vapor, a combustible dust, or an ignitible fiber.

Front 1113

Purge Gas

Back 1113

An inert or a combustible gas that is continuously or intermittently added to a system to render the atmosphere nonignitible.

Front 1114

Purge Rate

Back 1114

A constant flow of purging medium at velocity sufficient to achieve a purge.

Front 1115

Purging

Back 1115

For purposes of tank entry, cleaning, or repair, the process of displacing vapors or gases from an enclosure or confined space.

Front 1116

Purging

Back 1116

For the purpose of handling releases of flammable and combustible liquids and gases, the process of displacing vapors or gases from an enclosure or confined space.

Front 1117

Purging

Back 1117

The process of displacing flammable vapors from buildings, equipment, or piping.

Front 1118

Purging

Back 1118

The process of supplying an enclosure with a protective gas at a sufficient flow and positive pressure to reduce the concentration of any flammable gas or vapor initially present to an acceptable level.

Front 1119

Purging

Back 1119

The removal of flammable vapor atmospheres or any residue capable of producing flammable vapors in the tank and connected distribution lines so that subsequent natural ventilation does not result in the reinstatement of a flammable atmosphere unless or until a flammable liquid is again introduced into the tank or its connected distribution lines.

Front 1120

Purification System

Back 1120

A combination of mechanical, chemical, and physical devices such as separators, filters, adsorbents, and catalysts designed to remove or alter contaminants within the compressed air stream to produce effluent air that is breathable.

Front 1121

PWR

Back 1121

Pressurized water reactor.

Front 1122

Pyramid Tire Storage

Back 1122

On-floor storage in which tires are formed into a pyramid to provide pile stability.

Front 1123

Pyrolysate

Back 1123

Product of decomposition through heat; a product of a chemical change caused by heating.

Front 1124

Pyrolysis

Back 1124

The chemical decomposition of a compound into one or more other substances by heat alone; pyrolysis often precedes combustion.

Front 1125

Pyrolysis

Back 1125

The destructive distillation of organic compounds in an oxygen-free environment that converts the organic matter into gases, liquids, and char.

Front 1126

Pyrophoric

Back 1126

A chemical that spontaneously ignites in air at or below a temperature of 130°F (54.5°C).

Front 1127

Pyrophoric

Back 1127

A chemical with an autoignition temperature in air at or below 54.4°C (130°F).

Front 1128

Pyrophoric Gas

Back 1128

A gas that will spontaneously ignite in air at or below a temperature of
54.4°C (130°F).

Front 1129

Pyrophoric Gas

Back 1129

A gas with an autoignition temperature in air at or below 130°F (54.4°C). [55, 2005]

Front 1130

Pyrophoric Gas

Back 1130

A gas with an autoignition temperature in air at or below 54.4°C (130°F).

Front 1131

Pyrophoric Material

Back 1131

A chemical with an autoignition temperature in air at or below 130°F (54.4°C).

Front 1132

Pyrophoric Material

Back 1132

A chemical with an auto-ignition temperature in air at or below 130°F (54.4°C). [5000, 2009]

Front 1133

Pyrophoric Material

Back 1133

Any substance that spontaneously ignites upon exposure to atmospheric oxygen.

Front 1134

Pyrotechnic Article

Back 1134

A pyrotechnic device, other than a device classed as fireworks, for use in the entertainment industry.

Front 1135

Pyrotechnic Article

Back 1135

A pyrotechnic device, other than a device classed as fireworks, for use in the entertainment industry. [1124, 2006]

Front 1136

Pyrotechnic Composition

Back 1136

A chemical mixture that, upon burning, produces visible, brilliant displays, bright lights, or sounds.

Front 1137

Pyrotechnic Device

Back 1137

Any device containing pyrotechnic materials and capable of producing a special effect as defined in this code. [1126, 2006]

Front 1138

Pyrotechnic Device

Back 1138

Any device containing pyrotechnic materials and capable of producing a special effect as defined in this standard.

Front 1139

Pyrotechnic Laboratory

Back 1139

A building or room used for research, development, or testing of chemicals, fireworks, pyrotechnic articles, or components containing explosive or pyrotechnic compositions.

Front 1140

Pyrotechnic Manufacturer

Back 1140

A licensed individual or company that mixes chemicals to make pyrotechnics for sale or use.

Front 1141

Pyrotechnic Material (Pyrotechnic Special Effects Material)

Back 1141

A chemical mixture used in the entertainment industry to produce visible or audible effects by combustion, deflagration, or detonation.

Front 1142

Pyrotechnic Material (Pyrotechnic Special Effects Material)

Back 1142

A chemical mixture used in the entertainment industry to produce visible or audible effects by combustion, deflagration, or detonation. [1124, 2006]

Front 1143

Pyrotechnic Operator

Back 1143

The person who has overall responsibility for the operation and safety of a pyrotechnic display.

Front 1144

Pyrotechnics

Back 1144

Controlled exothermic chemical reactions that are timed to create the effects of heat, gas, sound, dispersion of aerosols, emission of visible electromagnetic radiation, or a combination of these effects to
provide the maximum effect from the least volume.

Front 1145

Pyrotechnics

Back 1145

Controlled exothermic chemical reactions that are timed to create the effects of heat, gas, sound, dispersion of aerosols, emission of visible electromagnetic radiation, or a combination of these effects to
provide the maximum effect from the least volume. [1124, 2006]

Front 1146

Pyrotechnic Special Effect

Back 1146

A special effect created through the use of pyrotechnic materials and devices. [1126, 2006]

Front 1147

Pyrotechnic Special Effect

Back 1147

A special effect created through the use of pyrotechnic materials and devices. (See also 3.3.53, Special Effect.)

Front 1148

Pyrotechnic Special Effect

Back 1148

A special effect created through the use of pyrotechnic materials and devices. (See also D.1.42, Special Effect.) [1126, 2006]

Front 1149

Q-Switch

Back 1149

A device for producing very short (approximately 30 nanoseconds), intense laser pulses by enhancing the storage and dumping of electronic energy in and out of the lasing medium, respectively.

Front 1150

Q-Switched Laser

Back 1150

A laser that emits short (approximately 10 to 250 nanoseconds), high-power pulses by means of a Q-switch.

Front 1151

Qualification

Back 1151

Having satisfactorily completed the requirements of the objectives.

Front 1152

Qualification

Back 1152

Having satisfactorily completed the requirements of the objectives. [1021, 2003]

Front 1153

Qualified

Back 1153

A competent and capable person or company that has met the requirements and training for a given field acceptable to the AHJ.

Front 1154

Qualified

Back 1154

A competent and capable person or company that has met the requirements and training for a given field acceptable to the AHJ. [96, 2008]

Front 1155

Qualified

Back 1155

A determination by an AHJ that an individual has demonstrated compliance with this standard through evaluation of the individual’s knowledge, skills, and abilities.

Front 1156

Qualified

Back 1156

Having knowledge of the installation, construction, or operation of apparatus and the hazards involved.

Front 1157

Qualified Agency

Back 1157

Any individual, firm, corporation, or company that either in person or through a representative is engaged in and is responsible for (1) the installation, testing, or replacement of gas piping or (2) the connection, installation, testing, repair, or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.

Front 1158

Qualified Agency

Back 1158

Any individual, firm, corporation, or company that, either in person or through a representative, is engaged in and is responsible for the connection, venting, installation, inspection, repair, or servicing of heat-producing appliances and who is experienced in such work, is familiar with all precautions required, and has complied with all the requirements of the AHJ.

Front 1159

Qualified Agency

Back 1159

Any individual, firm, corporation, or company that, either in person or through a representative, is regularly engaged in such work, is trained and familiar with all precautions required, and has complied with all the requirements of the authority having jurisdiction.

Front 1160

Qualified Healthcare
Professional

Back 1160

A licensed medical doctor or other licensed healthcare professional qualified to provide professional expertise in the areas of occupational safety and health as they relate to emergency response activities.

Front 1161

Qualified Individual

Back 1161

An individual knowledgeable in the hazards of compressed gases and cryogenic fluids through training and work experience.

Front 1162

Qualified Person

Back 1162

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems related to a particular subject matter, work, or project.
[1451, 2002]

Front 1163

Qualified Person

Back 1163

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems related to the subject matter, the work, or the project.

Front 1164

Qualified Person

Back 1164

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems related to the subject matter, the work, or the project. [1451, 2007]

Front 1165

Qualified Person

Back 1165

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems related to the subject matter, the work, or the project. [1500, 2002]

Front 1166

Qualified Person

Back 1166

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems relating to a particular subject matter, work, or project.

Front 1167

Qualified Person

Back 1167

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems relating to a particular subject matter, work, or project.
[1451, 2002]

Front 1168

Qualified Person

Back 1168

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems relating to a particular subject matter, work, or project.
[1451, 2002]

Front 1169

Qualified Person

Back 1169

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems relating to a particular subject matter, work, or project.
[1451, 2007]

Front 1170

Qualified Person

Back 1170

A person who, by possession of a recognized degree, certificate, professional standing, or skill, and who, by knowledge, training, and experience, has demonstrated the ability to deal with problems relating to the subject matter, the work, or the project.
[1451, 2007]

Front 1171

Qualified Person

Back 1171

One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved. [70:100]

Front 1172

Qualified Person

Back 1172

One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved.

Front 1173

Qualified Person

Back 1173

One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved. [70, 2008]

Front 1174

Qualified Person

Back 1174

One who has skills and knowledge related to the construction and operation of the equipment and installations and has received safety training on the hazards involved.

Front 1175

Qualified Person

Back 1175

One who has the skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved.

Front 1176

Quality Assessment (QA)

Back 1176

An assessment of the performance of structure, processes, and outcomes within the EMS system and their comparison against a standard.

Front 1177

Quality Assurance

Back 1177

The activities undertaken to establish confidence that the products or services available maintain the standard of excellence set for those products or services.

Front 1178

Quality Assurance

Back 1178

The procedures conducted by the registered design professionals (RDPs)
responsible for design and the registered design professionals
responsible for inspection that provide evidence and documentation to
the RDPs, the owner, and the authority having jurisdiction that the work
is being constructed in accordance with the approved construction
documents.

Front 1179

Quality Assurance Plan

Back 1179

Written documentation of the tests, special inspections, and observations to be performed in the quality assurance program.

Front 1180

Quality Assurance Program

Back 1180

A predefined set of observations, special inspections, tests, and other procedures that provide an independent record to the owner, authority having jurisdiction, and RDP responsible for design that the construction is in general conformance with the approved construction documents.

Front 1181

Quality Control Program

Back 1181

The operational procedures provided by the contractors to control the quality of the work and ensure compliance with the approved construction documents.

Front 1182

Quality Improvement

Back 1182

The activities undertaken to continuously examine and improve the products and services.

Front 1183

Quantity-Distance (Q-D)

Back 1183

The quantity of explosive material and the separation distance relationships providing protection.

Front 1184

Queue

Back 1184

A line of stored vehicles.

Front 1185

Quick Connectors

Back 1185

Fittings used to connect hose assemblies to piping and valves without the use of tools.

Front 1186

Quick-Disconnect Device

Back 1186

A hand-operated device that provides a means for connecting and disconnecting an appliance or an appliance connector to a gas supply and that is equipped with an automatic means to shut off the gas supply when the device is disconnected.

Front 1187

Quick Match

Back 1187

A black match that is encased in a loose-fitting sheath.

Front 1188

Quick-Response Early Suppression (QRES) Sprinkler

Back 1188

A type of quick-response sprinkler that meets the criteria of
3.6.1(a)(1) and is listed for its capability to provide fire suppression of
specific fire hazards.

Front 1189

Quick-Response Early Suppression (QRES) Sprinkler

Back 1189

A type of quick-response sprinkler that meets the criteria of
3.6.1(a)(1) of NFPA 13 and is listed for its capability to provide fire
suppression of specific fire hazards. [13, 2007]

Front 1190

Quick-Response Extended
Coverage Sprinkler

Back 1190

A type of quick-response sprinkler that meets the criteria of
3.6.1(a)(1) and complies with the extended protection areas defined
in Chapter 8.

Front 1191

Quick-Response Extended
Coverage Sprinkler

Back 1191

A type of quick-response sprinkler that meets the criteria of
3.6.1(a)(1) of NFPA 13 and complies with the extended protection
areas defined in Chapter 8 of NFPA 13. [13, 2007]

Front 1192

Quick-Response (QR) Sprinkler

Back 1192

A type of spray sprinkler that meets the fast response criteria of
3.6.1(a)(1) and is listed as a quick-response sprinkler for its intended
use.

Front 1193

Quick-Response (QR) Sprinkler

Back 1193

A type of spray sprinkler that meets the fast response criteria of
3.6.1(a)(1) of NFPA 13 and is listed as a quick-response sprinkler for
its intended use. [13, 2007]

Front 1194

Quiet Ground

Back 1194

A system of grounding conductors, insulated from portions of the conventional grounding of the power system, that interconnects the grounds of electric appliances for the purpose of improving immunity to electromagnetic noise. (ELS)

Front 1195

Quilted

Back 1195

Fused or stitched with thread through the upholstery cover material and through one or more layers of upholstery material.

Front 1196

Quint

Back 1196

Fire apparatus with a permanently mounted fire pump, a water tank, a hose storage area, an aerial ladder or elevating platform with a permanently mounted waterway, and a complement of ground ladders.

Front 1197

Quint

Back 1197

Fire apparatus with a permanently mounted fire pump, a water tank, a hose storage area, an aerial ladder or elevating platform with a permanently mounted waterway, and a complement of ground ladders. [1901, 2003]

Front 1198

Quint Apparatus

Back 1198

A fire department emergency vehicle with a permanently mounted fire pump, a water tank, a hose storage area, an aerial device with a permanently mounted waterway, and a complement of ground ladders.

Front 1199

Raceway

Back 1199

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in NFPA 70. Raceways include, but are not limited to, rigid metal conduit, rigid nonmetallic conduit, intermediate metal conduit, liquidtight flexible conduit, flexible metallic tubing, flexible metal conduit, electrical nonmetallic tubing, electrical metallic tubing, underfloor raceways, cellular concrete floor raceways, cellular metal floor raceways, surface raceways, wireways,
and busways. [70, 2005]

Front 1200

Raceway

Back 1200

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this Code. Raceways include, but are not limited to, rigid metal conduit, rigid nonmetallic conduit, intermediate metal conduit, liquidtight flexible conduit, flexible metallic tubing, flexible metal conduit, electrical nonmetallic tubing, electrical metallic tubing, underfloor raceways, cellular concrete floor raceways, cellular metal floor raceways, surface raceways, wireways,
and busways.

Front 1201

Raceway

Back 1201

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this standard. Raceways include, but are not limited to, rigid metal conduit, rigid nonmetallic conduit, intermediate metal conduit, liquidtight flexible conduit, flexible metallic tubing, flexible metal conduit, electrical metallic tubing, electrical nonmetallic tubing, underfloor raceways, cellular concrete floor raceways, cellular metal floor raceways, surface raceways, wireways, and busways. [70, 2008]

Front 1202

Raceway

Back 1202

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this standard. Raceways include, but are not limited to, rigid metal conduit, rigid nonmetallic conduit, intermediate metal conduit, liquidtight flexible conduit, flexible metallic tubing, flexible metal conduit, electrical nonmetallic tubing, electrical metallic tubing, underfloor raceways, cellular concrete floor raceways, cellular metal floor raceways, surface raceways, wireways,
and busways. [70:100]

Front 1203

Rack

Back 1203

Any combination of vertical, horizontal, and diagonal members that supports stored materials.

Front 1204

Rack

Back 1204

Any combination of vertical, horizontal, and diagonal structural members that support stored materials or commodities.

Front 1205

Rack

Back 1205

Any combination of vertical, horizontal, and diagonal members that supports stored materials. Shelving in some rack structures use shelves that can be solid, slatted, or open. Racks can be fixed, portable, or movable. Loading can be either manual — using lift trucks, stacker cranes, or hand placement — or automatic — using
machine-controlled storage and retrieval systems.

Front 1206

Radiant Burner

Back 1206

A burner designed to transfer a significant part of the combustion heat in the form of radiation.

Front 1207

Radiant Energy-Sensing Fire
Detector

Back 1207

A device that detects radiant energy, such as ultraviolet, visible, or infrared, that is emitted as a product of combustion reaction and obeys the laws of optics. [72, 2007]

Front 1208

Radiant Energy-Sensing Fire
Detector

Back 1208

A device that detects radiant energy, such as ultraviolet, visible, or infrared, that is emitted as a product of combustion reaction and obeys the laws of optics. (SIG-IDS)

Front 1209

Radiant Energy Shield

Back 1209

A device utilized to protect components from the effects of radiant heat generated by a fire.

Front 1210

Radiant Exposure

Back 1210

Energy received by the surface in joules/cm2.

Front 1211

Radiant Heat

Back 1211

Heat energy carried by electromagnetic waves that are longer than light waves and shorter than radio waves; radiant heat (electromagnetic radiation) increases the sensible temperature of any substance capable of absorbing the radiation, especially solid and opaque objects.

Front 1212

Radiant Panel Index (Is)

Back 1212

The product of the flame spread factor (Fs) and the heat evolution factor (Qs), as determined in ASTM E 162.

Front 1213

Radiant Protective
Performance (RPP)

Back 1213

The resistance of a material to radiant heat, measured in seconds, when exposed to a vertically oriented radiant heat source, positioned at a specific horizontal distance from the vertical placement of the protective material, sufficient to cause a second-degree burn to human tissue.

Front 1214

Radiant Room Heater

Back 1214

A room heater designed to transfer heat primarily by direct radiation.

Front 1215

Radiant Room Heater

Back 1215

A room heater designed to transfer heat primarily by direct radiation. [211, 2006]

Front 1216

Radiant Tube Burner

Back 1216

A burner designed to provide a long flame within a tube to ensure substantially uniform radiation from the tube surface.

Front 1217

Radiant Tube Heating System

Back 1217

A heating system with tubular elements open at one or both ends in which each tube has an inlet burner arrangement where combustion is initiated, a suitable length where combustion occurs, and an outlet for the combustion products formed.

Front 1218

Radiation

Back 1218

Heat transfer by way of electromagnetic energy.

Front 1219

Radiation

Back 1219

The combined process of emission, transmission, and absorption of energy traveling by electromagnetic wave propagation (e.g., infrared radiation) between a region of higher temperature and a region of lower temperature.

Front 1220

Radiation

Back 1220

The emission and propagation of energy through matter or space by means of electromagnetic disturbances that display both wave-like and particle-like behavior.

Front 1221

Radiation Area

Back 1221

An area, accessible to personnel, in which radiation exists, originating in whole or in part within radioactive material, at such levels that a major portion of the body could receive a dose in excess of 5
millirems (5 × 10-5 sievert) during any single hour or a dose in excess of 100 millirems (100 × 10-5 sievert) during any five consecutive days.

Front 1222

Radiation Worker

Back 1222

A person who is required to work in electromagnetic fields, the radiation levels of which exceed those specified for nonoccupational exposure.

Front 1223

Radioactive Materials
Packaging

Back 1223

Any packaging for radioactive materials including excepted packaging, industrial packaging, Type A, Type B, and Type C packaging.

Front 1224

Radioactive Particulate

Back 1224

Finely divided solids, such as powders and dusts, which emit ionizing radiation in excess of background radiation levels.

Front 1225

Radioactivity

Back 1225

The spontaneous decay or disintegration of an unstable atomic nucleus accompanied by the emission of radiation.

Front 1226

Radio Alarm Repeater Station
Receiver (RARSR)

Back 1226

A system component that receives radio signals and resides at a repeater station that is located at a remote receiving location. (SIG-SSS)

Front 1227

Radio Alarm Supervising
Station Receiver (RASSR)

Back 1227

A system component that receives data and annunciates that data at the supervising station. (SIG-SSS)

Front 1228

Radio Alarm System (RAS)

Back 1228

A system in which signals are transmitted from a radio alarm transmitter (RAT) located at a protected premises through a radio channel to two or more radio alarm repeater station receivers (RARSR) and that are annunciated by a radio alarm supervising station receiver (RASSR) located at the central station. (SIG-SSS)

Front 1229

Radio Alarm Transmitter
(RAT)

Back 1229

A system component at the protected premises to which initiating devices or groups of devices are connected that transmits signals indicating a status change of the initiating devices. (SIG-SSS)

Front 1230

Radio Channel

Back 1230

A band of frequencies of a width sufficient to allow its use for radio communications. [72, 2007]

Front 1231

Radio Channel

Back 1231

A band of frequencies of a width sufficient to allow its use for radio communications. (SIG-SSS)

Front 1232

Radio Frequency

Back 1232

The number of electromagnetic wave frequency cycles transmitted by a radio in 1 second.

Front 1233

Radiological Agents

Back 1233

Radiation associated with x-rays, alpha, beta, and gamma emissions from radioactive isotopes, or other material in excess of normal background radiation levels. [1999, 2003]

Front 1234

Radiological Agents

Back 1234

Radiation associated with X-rays, alpha, beta, and gamma emissions from radioactive isotopes, or other materials in excess of normal background radiation levels.

Front 1235

Radiological Agents

Back 1235

Radiation associated with x-rays, alpha, beta, and gamma emissions from radioactive isotopes, or other materials in excess of normal background radiation levels. [1991, 2005]

Front 1236

Radiological Particulate
Terrorism Agents

Back 1236

Particles that emit ionizing radiation in excess of normal background levels, used to inflict lethal or incapacitating casualties, generally on a civilian population as a result of a terrorist attack.

Front 1237

Radiological Particulate
Terrorism Agents

Back 1237

Particles that emit ionizing radiation in excess of normal background levels, used to inflict lethal or incapacitating casualties, generally on a civilian population as a result of terrorist attack.

Front 1238

Radiological Particulate
Terrorism Agents

Back 1238

Radioactive particulates, including alpha and beta particulates, that are generated from a source of radioactive material or nuclear event which are intentionally used to inflict lethal or incapacitating casualties, generally on a civilian population as a result of a terrorist attack. The contaminated particles emit ionizing radiation.

Front 1239

Radionuclide

Back 1239

An isotope form of an element or radioactive element that emits radiation in excess of normal background radiation levels.

Front 1240

Radio Suppression

Back 1240

Suppression of the ignition and electrical system noises that normally interfere with radio transmission and reception.

Front 1241

Railway

Back 1241

Any steam, electric, diesel electric, or other railroad or railway that carries passengers for hire on a particular line or branch in the vicinity of an explosives storage or manufacturing facility.

Front 1242

Railway

Back 1242

Any steam, electric, diesel-electric, or other railroad or railway that carries passengers for hire on the particular line or branch in the vicinity of a pyrotechnics manufacturing or storage facility.

Front 1243

Railway

Back 1243

Any steam, electric, diesel-electric, or other railroad or railway that carries passengers for hire on the particular line or branch in the vicinity of a rocket motor plant or storage facility.

Front 1244

Rainproof

Back 1244

Constructed, protected, or treated so as to prevent rain from interfering with the successful operation of the apparatus under specified test conditions.

Front 1245

Raintight

Back 1245

Constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions.

Front 1246

Raised Floor

Back 1246

A platform with removable panels where equipment is installed, with the intervening space between it and the main building floor used to house the interconnecting cables and at times is used as a means for supplying conditioned air to the information technology equipment and the room.

Front 1247

Raised Floor Plenum

Back 1247

The space between the top of the finished floor and the underside of a raised floor where used to supply air to the occupied area, or to return or exhaust air from the occupied area.

Front 1248

Raising System

Back 1248

A rope rescue system used to raise a load under control.

Front 1249

Ram

Back 1249

A powered rescue tool that has a piston or other type extender that generates extending forces or both extending and retracting forces.

Front 1250

Ramada

Back 1250

Any freestanding roof or shade structure installed or erected above a manufactured home or any portion thereof.

Front 1251

Ramada

Back 1251

Any freestanding roof or shade structure installed or erected above a manufactured home or any portion thereof. [501A, 2005]

Front 1252

Ramp

Back 1252

A walking surface that has a slope steeper than 1 in 20.

Front 1253

Ramp

Back 1253

A walking surface that has a slope steeper than 1 in 20. [101, 2009]

Front 1254

Ramp Breakover Angle

Back 1254

The angle measured between two lines tangent to the front and rear tire static loaded radius, and intersecting at a point on the underside of the vehicle that defines the largest ramp over which the vehicle can roll.

Front 1255

Ramp Type Parking Structure

Back 1255

A parking structure that utilizes sloped floors for vertical vehicle circulation.

Front 1256

Range

Back 1256

An appliance intended primarily for cooking, including roasting, baking, or broiling, or any combination of these functions.

Front 1257

Range Safety Officer (RSO)

Back 1257

A certified user with overall responsibility for the safety, setup, and launching of all rockets at a high power rocket launch.

Front 1258

Rapid Intervention
Crew/Company (RIC)

Back 1258

A minimum of two fully equipped members who are on-site and assigned specifically to initiate the immediate rescue of injured or trapped members.

Front 1259

Rapid Intervention
Crew/Company (RIC)

Back 1259

A minimum of two fully equipped members who are on-site and assigned specifically to initiate the immediate rescue of injured or trapped members. [1500, 2007]

Front 1260

Rapid Intervention
Crew/Company (RIC)

Back 1260

A minimum of two fully equipped personnel on site, in a ready state, for immediate rescue of disoriented, injured, lost, or trapped rescue personnel.

Front 1261

Rapid Intervention
Crew/Company (RIC)

Back 1261

A minimum of two fully equipped responders who are on site and assigned specifically to initiate the immediate rescue of injured or trapped responders.

Front 1262

Rapid Intervention Crew/Company Universal Air Connection (RIC UAC)

Back 1262

A system that allows emergency replenishment of breathing air to the
SCBA of disabled or entrapped fire or emergency services personnel.

Front 1263

Rapid Intervention Crew
(RIC)

Back 1263

A dedicated crew of fire fighters who are assigned for rapid deployment to rescue lost or trapped members.

Front 1264

Rapid Intervention Crew
(RIC)

Back 1264

A dedicated crew of fire fighters who are assigned to account for and rescue trapped or lost members.

Front 1265

Rapid Intervention Team
(RIT)

Back 1265

Two or more fire fighters assigned outside the hazard area at an interior structure fire to assist or rescue at an emergency operation.

Front 1266

Rapid Response Area (RRA)

Back 1266

A rectangle that includes the runway and the surrounding area extending to a width of 500 ft (150 m) outward from each side of the runway centerline and to a length of 1650 ft (500 m) beyond each runway end, but not beyond the airport property line. (See Figure A.3.3.11.3.)

Front 1267

Rate

Back 1267

The current expressed in amperes at which a battery is discharged.

Front 1268

Rate

Back 1268

The total flow of solution per unit of time, which is expressed in gpm
(L/min) in this standard.

Front 1269

Rate Compensation Detector

Back 1269

A device that responds when the temperature of the air surrounding the device reaches a predetermined level, regardless of the rate of temperature rise. [72, 2007]

Front 1270

Rate Compensation Detector

Back 1270

A device that responds when the temperature of the air surrounding the device reaches a predetermined level, regardless of the rate of temperature rise. (SIG-IDS)

Front 1271

Rated

Back 1271

A description of performance derived from testing or evaluation that guides appropriate selection, installation, and use of equipment that is not listed.

Front 1272

Rated Capacity

Back 1272

The flow available from a device, at the designated residual pressure either measured or calculated.

Front 1273

Rated Capacity

Back 1273

The flow available from a hydrant at the designated residual pressure
(rated pressure) either measured or calculated.

Front 1274

Rated Capacity

Back 1274

The flow available from a hydrant at the designated residual pressure
(rated pressure) either measured or calculated.
[24, 2007]

Front 1275

Rated Capacity (Aerial Device)

Back 1275

The total amount of weight of all personnel and equipment that can be supported at the outermost rung of an aerial ladder or on the platform of an elevating platform with the aerial device placed in the horizontal position at its maximum horizontal extension when the stabilizers are fully deployed.

Front 1276

Rated Capacity (Aerial Device)

Back 1276

The total amount of weight of all personnel and equipment that can be supported at the outermost rung of an aerial ladder or on the platform of an elevating platform with the waterway uncharged. [1901, 2003]

Front 1277

Rated Capacity (Water Pump)

Back 1277

The flow rate to which the pump manufacturer certifies compliance of the pump when it is new.

Front 1278

Rated Capacity (Water Pump)

Back 1278

The flow rate to which the pump manufacturer certifies compliance of the pump when it is new. [1901, 2003]

Front 1279

Rated Discharge

Back 1279

The rate(s) at which a nozzle is designed to flow water when operated at its rated pressure.

Front 1280

Rated-Load Current

Back 1280

The rated-load current for a hermetic refrigerant motor-compressor is the current resulting when the motor-compressor is operated at the rated load, rated voltage, and rated frequency of the equipment it serves.

Front 1281

Rated Load Impedance

Back 1281

The amplifier manufacturer’s stated or marked speaker impedance into which an amplifier will deliver its rated output power; 2Ω, 4Ω, and 8Ω are typical ratings.

Front 1282

Rated Output Power

Back 1282

The amplifier manufacturer’s stated or marked output power capability into its rated load.

Front 1283

Rated Output Voltage

Back 1283

For audio amplifiers of the constant-voltage type, the nominal output voltage when the amplifier is delivering full rated power. Rated output voltage is used for determining approximate acoustic output in distributed speaker systems that typically employ impedance matching transformers. Typical ratings are 25 volts, 70.7 volts, and 100 volts.

Front 1284

Rated Pressure

Back 1284

The pressure at which a nozzle is designed to operate to produce a specified discharge.

Front 1285

Rated/Rating

Back 1285

A numerical value assigned to an extinguisher based on its fire-extinguishing capability.

Front 1286

Rated Service Time

Back 1286

The period of time, stated on the SCBA’s NIOSH certification label, that the SCBA supplied air to the breathing machine when tested to
42 CFR 84, Subpart H.

Front 1287

Rated Speed

Back 1287

The speed for which the fire pump is listed and appears on the fire pump nameplate.

Front 1288

Rated System Input

Back 1288

The maximum input pressure/electrical power at which the powered rescue tool is designed to operate.

Front 1289

Rated Vertical Height

Back 1289

The vertical distance measured by a plumb line from the maximum elevation of the aerial device allowed by the manufacturer to the ground.

Front 1290

Rate of Pressure Rise (dP/dt)

Back 1290

The increase in pressure divided by the time interval necessary for that increase to occur.

Front 1291

Rate-of-Rise Detector

Back 1291

A device that responds when the temperature rises at a rate exceeding a predetermined value. [72, 2007]

Front 1292

Rate-of-Rise Detector

Back 1292

A device that responds when the temperature rises at a rate exceeding a predetermined value. (SIG-IDS)

Front 1293

Raw Fuel Feeder

Back 1293

A device for supplying a controlled amount of raw fuel.

Front 1294

Reach/Extension Device

Back 1294

Any device for water rescue that can be extended to a person in the water so that he or she can grasp it and be pulled to safety without physically contacting the rescuer.

Front 1295

“Reach, Throw, Row, Go”

Back 1295

The four sequential steps in water rescue with progressively more risk to the rescuer. Specifically, a “go” rescue involves physically entering the medium (e.g., in the water or on the ice).

Front 1296

Reactance

Back 1296

The component of impedance contributed by inductance or capacitance. The unit of reactance is the ohm. (ELE)

Front 1297

Reaction Air

Back 1297

All the air that, when reacted with gas in an endothermic generator by the indirect addition of heat, becomes a special atmosphere gas.

Front 1298

Reaction Gas

Back 1298

A gas that, when reacted with air in an endothermic generator by the addition of heat, becomes a special atmosphere gas.

Front 1299

Reactive Gas

Back 1299

A gas that, by itself, is readily capable of detonation, explosive decomposition, or explosive reaction at normal or elevated temperatures and pressures.

Front 1300

Reactive Material

Back 1300

A material that, by itself, is readily capable of detonation, explosive decomposition, or explosive reaction at normal or elevated temperatures and pressures. [45, 2004] (LAB)

Front 1301

Reactive Material

Back 1301

A material that, by itself, is readily capable of detonation, explosive decomposition, or explosive reaction at normal or elevated temperatures and pressures. (See B.2.5 for definitions of Instability 2, 3, or
4.)

Front 1302

Reader

Back 1302

A device that allows an identification credential to be entered into an access control system.

Front 1303

Readily Accessible

Back 1303

Able to be located, reached, serviced, or removed without removing other components or parts of the apparatus and without the need to use special tools to open enclosures.

Front 1304

Readily Accessible

Back 1304

Able to be located, reached, serviced, or removed without removing other components or parts of the apparatus and without the need to use special tools to open enclosures. [1901, 2003]

Front 1305

Readily Accessible

Back 1305

Capable of being reached quickly and safely for effective use.

Front 1306

Readily Accessible

Back 1306

Capable of being reached quickly and safely for effective use under emergency conditions without the aid of tools.

Front 1307

Readily Accessible

Back 1307

Capable of being reached quickly for operation, renewal, or inspections, without requiring those to whom ready access is required to climb over or remove obstacles or to resort to portable ladders. [70,
2005]

Front 1308

Readily Accessible

Back 1308

Capable of being reached quickly for operation, renewal, or inspections, without requiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portable ladders, and so forth. [70:100]

Front 1309

Readily Accessible

Back 1309

Capable of being reached quickly for operation, renewal, or inspections, without requiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portable ladders, and so forth. [70, 2005]

Front 1310

Readily Accessible

Back 1310

For recreational vehicles, able to be located, reached, serviced, or removed without removing other components or parts of the apparatus and without the need to use special tools to open enclosures.

Front 1311

Readily Accessible

Back 1311

For the purposes of this standard, capable of being removed or exposed without damaging the equipment or system or the building structure or finish, or not permanently enclosed.

Front 1312

Readily Accessible

Back 1312

Having direct access without the need of removing or moving any panel, door, or similar covering of the item described.

Front 1313

Readily Accessible (for
Inspections)

Back 1313

Exposed, or capable of being exposed, for operation, inspection, maintenance, or repair without the use of tools to open or remove doors, panels, or coverings.

Front 1314

Ready Box

Back 1314

A storage container for aerial devices for use during setup and display.

Front 1315

Ready Box Tender

Back 1315

An assistant who controls and dispenses the contents of ready boxes during a fireworks display.

Front 1316

Rear Axle Track Width

Back 1316

The lateral distance between the centerlines of the tires at ground; if there are dual rear wheels, the lateral distance from the midway points between the inner and outer tires at ground.

Front 1317

Rear Box

Back 1317

A mild steel box, open at the front and back, which is designed to be attached to the rear of the test specimen to shield it from environmental influences.

Front 1318

Rear Clearance Line

Back 1318

The plane extending between lines on each side of the vehicle that connect a point that is 8 in. (203 mm) above the ground on the vertical centerline of the rearmost wheel spindle to the lowest point on the intersection of the rear wall and floor lines.

Front 1319

Rear Discharge Stoker

Back 1319

A stoker so arranged that ash is discharged from the grate surface at the end opposite the solid fuel.

Front 1320

Rear Discharge Underfeed
Stoker

Back 1320

A stoker having a grate composed of transversely spaced underfeed retorts that feed and distribute solid fuel to intermediate rows of tuyeres through which air is admitted for combustion. The ash is discharged from the stoker across the rear end.

Front 1321

Rear of Site

Back 1321

A line designating the rearmost part of the stand that is perpendicular to the longitudinal centerline of the stand.

Front 1322

Rebuild

Back 1322

To clean and examine compliant product thoroughly and make needed repairs and replace components as specified by the manufacturer.

Front 1323

Rebuild

Back 1323

To make extensive repairs in order to restore a component to
like-new condition in accordance with the original manufacturer’s
specifications.

Front 1324

Reburn

Back 1324

The process of admitting fuel downstream of the main burners to create a fuel-rich zone where chemical reactions reduce NOx to molecular nitrogen.

Front 1325

Reburn Injector

Back 1325

A device that introduces fuel without combustion air into a furnace for the purpose of reducing NOx emissions from the furnace.

Front 1326

Recall System

Back 1326

Procedures by which a manufacturer identifies a product, provides notice or safety alert, and repairs or withdraws the product as the corrective action.

Front 1327

Recall System

Back 1327

The action by which a manufacturer identifies an element, provides notice to the users, withdraws an element from the marketplace and distribution sites, and returns the element to the manufacturer or other acceptable location for corrective action.

Front 1328

Recall System

Back 1328

The action taken by which a manufacturer identifies an element, provides notice to the users, withdraws an element from the marketplace and distribution sites, and returns the element to the manufacturer or other acceptable location for corrective action.

Front 1329

Receptacle

Back 1329

A contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke. [70:100]

Front 1330

Receptacle

Back 1330

A receptacle is a contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke.

Front 1331

Receptacle

Back 1331

A receptacle is a contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke. [70, 2005]

Front 1332

Receptacle

Back 1332

A receptacle is a contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke. [70, 2008]

Front 1333

Receptacle Outlet

Back 1333

An outlet where one or more receptacles are installed.

Front 1334

Receptacle Outlet

Back 1334

An outlet where one or more receptacles are installed. [70, 2005]

Front 1335

Recessed Sprinkler

Back 1335

A sprinkler in which all or part of the body, other than the shank thread, is mounted within a recessed housing.

Front 1336

Recessed Sprinkler

Back 1336

A sprinkler in which all or part of the body, other than the shank thread, is mounted within a recessed housing. [13, 2007]

Front 1337

Recharge

Back 1337

The replacement of the extinguishing agent and expellant gas.

Front 1338

Recharge

Back 1338

The replacement of the extinguishing agent and expellant gas. [17A,
2009]

Front 1339

Rechargeable (Refillable) Fire
Extinguisher

Back 1339

A fire extinguisher capable of undergoing complete maintenance, including internal inspection of the pressure vessel, replacement of all substandard parts and seals, and hydrostatic testing.

Front 1340

Recharging

Back 1340

The replacement of the extinguishing agent (also includes the expellant for certain types of fire extinguishers).

Front 1341

Recidivism

Back 1341

Recurrence of firesetting behavior.

Front 1342

Reciprocating Engines

Back 1342

An engine that uses a spark plug to ignite a fuel-air mixture (e.g., otto cycle engine) or an engine in which high-pressure compression raises the air temperature to the ignition temperature of the injected fuel
oil (e.g., diesel cycle engine).

Front 1343

Reciprocating Grate Stoker

Back 1343

A grate element that has reciprocating motion, usually for the purpose of fuel agitation or ash removal.

Front 1344

Recirculating Chemical Toilet

Back 1344

A self-contained, recirculating toilet in which the waste is chemically treated.

Front 1345

Recirculating Systems

Back 1345

Systems for control of smoke or grease-laden vapors from commercial cooking equipment that do not exhaust to the outside.

Front 1346

Recirculation (Solids or
Recycle)

Back 1346

The reintroduction of solid material extracted from the products of combustion into a fluidized bed.

Front 1347

Reclaiming Tumbler

Back 1347

A drying tumbler that reclaims the solvent from vapors.

Front 1348

Recommended Practice

Back 1348

A document that is similar in content and structure to a code or standard but that contains only nonmandatory provisions using the word “should” to indicate recommendations in the body of the text.

Front 1349

Reconstruction

Back 1349

The reconfiguration of a space that affects an exit, or a corridor shared by more than a single tenant; or reconfiguration of space such that the rehabilitation work area is not permitted to be occupied because existing means of egress and fire protection systems, or their equivalent, are not in place or continuously maintained.

Front 1350

Reconstruction

Back 1350

The reconfiguration of a space that affects an exit, or a corridor shared by more than a single tenant; or reconfiguration of space such that the rehabilitation work area is not permitted to be occupied because existing means of egress and fire protection systems, or their equivalent, are not in place or continuously maintained. [5000, 2006]

Front 1351

Reconstruction

Back 1351

The reconfiguration of a space that affects an exit or a corridor shared by more than one occupant space; or the reconfiguration of a space such that the rehabilitation work area is not permitted to be occupied because existing means of egress and fire protection systems, or their equivalent, are not in place or continuously maintained.

Front 1352

Record

Back 1352

A permanent account of known or recorded facts that is utilized to recall or relate past events or acts of an organization or the individuals therein.

Front 1353

Record Drawings

Back 1353

Drawings (as-built) that document the location of all devices, appliances, wiring sequences, wiring methods, and connections of the components of the fire alarm system as installed. (SIG-FUN)

Front 1354

Record of Completion

Back 1354

A document that acknowledges the features of installation, operation (performance), service, and equipment with representation by the property owner, system installer, system supplier, service organization, and the authority having jurisdiction. [72, 2007]

Front 1355

Record of Completion

Back 1355

A document that acknowledges the features of installation, operation (performance), service, and equipment with representation by the property owner, system installer, system supplier, service organization, and the authority having jurisdiction. (SIG-FUN)

Front 1356

Records Center

Back 1356

A building or enclosure having a minimum storage volume of records exceeding 50,000 ft3 (1416 m3) used for the retention of records.

Front 1357

Records Protection
Equipment

Back 1357

Self-contained movable devices of varying configurations, including insulated bodies with insulated doors or drawers or lids, nonrated multi-drawer devices housing individually rated drawer bodies, and other similar constructions.

Front 1358

Recovery

Back 1358

Activities and programs designed to return conditions to a level that is acceptable to the entity.

Front 1359

Recovery

Back 1359

Activities and programs designed to return the entity to an acceptable condition.

Front 1360

Recovery

Back 1360

An operation involving the retrieval of either (1) the remains of a deceased victim or (2) property, but in no case a living person.

Front 1361

Recovery

Back 1361

Nonemergency operations taken by responders to retrieve property or remains of victims.

Front 1362

Recovery

Back 1362

The process of returning a member’s physiological and psychological states to normal or neutral where this person is able to perform additional emergency tasks, be re-assigned, or released without any adverse effects.

Front 1363

Recovery

Back 1363

Those activities directed at locating and removing persons who have obviously or likely sustained fatal consequences from the incident.

Front 1364

Recovery Action

Back 1364

Activities to achieve the nuclear safety performance criteria that take place outside of the main control room or outside of the primary control station(s) for the equipment being operated, including the replacement or modification of components.

Front 1365

Recovery Area

Back 1365

An area designated by the range safety officer for the recovery of high power rockets.

Front 1366

Recreational Fire

Back 1366

The noncommercial burning of materials other than rubbish for pleasure, religious, ceremonial, cooking, or similar purposes in which the fuel burned is not contained in an incinerator, a barbecue grill, or a barbecue pit, and the total fuel area is not exceeding 3 ft (0.9 m) in diameter and 2 ft (0.6 m) in height.

Front 1367

Recreational Park Trailer

Back 1367

A trailer-type unit that is primarily designed to provide temporary living quarters for recreational camping or seasonal use.

Front 1368

Recreational Vehicle

Back 1368

A vehicle that is built on a single chassis, 400 ft2 (37 m2) or less when measured at the largest horizontal projection, designed to be
self-propelled or permanently towable by a light-duty truck, and designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel, or seasonal use.

Front 1369

Recreational Vehicle

Back 1369

A vehicular-type unit primarily designed as temporary living quarters for recreational, camping, or travel use, which either has its own motive power or is mounted on or drawn by another vehicle. The basic entities are travel trailer, camping trailer, truck camper, and motor home.

Front 1370

Recreational Vehicle

Back 1370

A vehicular-type unit primarily designed to provide temporary living quarters for recreational, camping, travel, or seasonal use that either has its own motive power or is mounted on or towed by another vehicle.

Front 1371

Recreational Vehicle Park

Back 1371

A plot of land upon which two or more recreational vehicle sites are located, established, or maintained for occupancy by recreational vehicles of the general public as temporary living quarters for recreation or vacation purposes.

Front 1372

Recreational Vehicle (RV)

Back 1372

A vehicular-type unit primarily designed to provide temporary living quarters for recreational, camping, travel, or seasonal use that either has its own motive power or is mounted on or towed by another vehicle. [1194, 2005]

Front 1373

Recreational Vehicle Site

Back 1373

A plot of ground within a recreational vehicle park set aside for the accommodation of a recreational vehicle on a temporary basis. It can be used as either a recreational vehicle site or as a camping unit site.

Front 1374

Recreational Vehicle Site
Feeder Circuit Conductors

Back 1374

The conductors from the park service equipment to the recreational vehicle site supply equipment.

Front 1375

Recreational Vehicle Site
Supply Equipment

Back 1375

The necessary equipment, usually a power outlet, consisting of a circuit breaker or switch and fuse and their accessories, located near the point of entrance of supply conductors to a recreational vehicle site and intended to constitute the disconnecting means for the supply to that site.

Front 1376

Recreational Vehicle Stand

Back 1376

That area of a recreational vehicle site intended for the placement of a recreational vehicle.

Front 1377

Recruit

Back 1377

An individual who has passed beyond the candidate level and who has actively commenced duties as a member of the organization.

Front 1378

Rectifier

Back 1378

A device without moving parts that changes alternating current to direct current.

Front 1379

Recuperative Catalytic
Oxidizer

Back 1379

A combustion system in which the burner(s) directly heats VOCs or HCs to the catalytic destruction temperature prior to their introduction to a destruction catalyst, after which products of combustion are used to indirectly heat the incoming gas stream before it contacts the burner flame, and in which the catalytic destruction temperature is lower than the non-catalytic (direct thermal) destruction temperature.

Front 1380

Recuperative Thermal
Oxidizer

Back 1380

A combustion device in which the burner(s) directly heats VOCs or HCs to the destruction temperature and in which the hot products of combustion are used to indirectly heat the incoming gas stream before it contacts the burner flame.

Front 1381

Recycle

Back 1381

A single burner boiler start-up that is initiated by steam pressure or water temperature following a normal shutdown.

Front 1382

Recycle Rate

Back 1382

In a fluidized bed, the rate at which a mass of material is reinjected into the bed. This value is often expressed as the ratio of the amount being reinjected to the total amount being elutriated from the fluidized bed.

Front 1383

Recycle Ratio

Back 1383

In a fluidized bed, the mass of material being reinjected into the bed divided by the mass of fuel being fed into the bed.

Front 1384

Reduced Flow Valve

Back 1384

A valve equipped with a restricted flow orifice that is designed to reduce the maximum flow from the valve under full flow conditions.

Front 1385

Reduced Pressure (Pred)

Back 1385

The maximum pressure developed in a vented enclosure during a vented deflagration.

Front 1386

Reduced Pressure (Pred)

Back 1386

The maximum pressure developed in a vented enclosure during a vented deflagration. [68, 2007]

Front 1387

Reduced-Pressure Principle Backflow Prevention Assembly (RPBA)

Back 1387

Two independently acting check valves together with a hydraulically operating, mechanically independent pressure differential relief valve located between the check valves and below the first check valve. These units are located between two tightly closed resilient-seated shutoff valves, as an assembly, and are equipped with properly located resilient-seated test cocks.

Front 1388

Reducer

Back 1388

A fitting used to connect a small hose line or pipe to a larger hose line or pipe.

Front 1389

Redundancy

Back 1389

The application of more than one device or system, or part of a device or system, with the objective of ensuring that in the event of one
failing to perform its function another is available to perform that function.

Front 1390

Redundant Air System

Back 1390

An independent secondary underwater breathing system (i.e., a pony bottle with first and second stage or a pony bottle supplying a bailout block).

Front 1391

Redundant Air System

Back 1391

An independent secondary underwater breathing system (i.e., a pony bottle with first and second stage or a pony bottle supplying a bailout block). [1670, 2004]

Front 1392

Redundant Component, System, or Subsystem

Back 1392

A component, system, or subsystem that independently duplicates the essential function of another component, system, or subsystem.

Front 1393

Redundant Fail-Safe Product
Control Measures (RFPCM)

Back 1393

Specified product storage controls that are more stringent than the basic requirements of this standard. (RFPCM would be used to alleviate the requirement for special protection and to be a factor in reducing distance requirements.)

Front 1394

Reference Designation

Back 1394

A distinctive code that serves to identify an item in a diagram, list, chart, and on the equipment.

Front 1395

Reference Grounding Point

Back 1395

The ground bus of the panelboard or isolated power system panel supplying the patient care area.

Front 1396

Reference Grounding Point

Back 1396

The ground bus of the panelboard or isolated power system panel supplying the patient care area. (ELE)

Front 1397

Reference Plane

Back 1397

A dimensionally defined plane parallel to the basic plane that is measured from the top of the applicable headform or the basic plane.

Front 1398

Referent

Back 1398

An object or concept (message) represented by a symbol.

Front 1399

Referral

Back 1399

An act or process by which an individual and/or family gain access to a program or community resources.

Front 1400

Refinery

Back 1400

A plant in which flammable or combustible liquids are produced on a commercial scale from crude petroleum, natural gasoline, or other hydrocarbon sources.

Front 1401

Refinery

Back 1401

A plant in which flammable or combustible liquids are produced on a commercial scale from crude petroleum, natural gasoline, or other hydrocarbon sources. [30, 2008]

Front 1402

Reflective Striping

Back 1402

Material added to the exterior of the garment to enhance nighttime or daytime visibility.

Front 1403

Refrigerated LP-Gas

Back 1403

LP-Gas that is maintained as a liquid at temperatures below ambient temperature to reduce the storage pressure including fully refrigerated LP-Gas at pressures near atmospheric pressure but not exceeding 15 psig (103 kPag) and semi-refrigerated LP-Gas at pressures above 15 psig (103 kPag).

Front 1404

Refrigerated LP-Gas

Back 1404

LP-Gas that is maintained as a liquid at temperatures below ambient temperature to reduce the storage pressure including fully refrigerated LP-Gas at pressures near atmospheric pressure but not exceeding 15 psig (103 kPag) and semi-refrigerated LP-Gas at pressures above 15 psig (103 kPag). [58, 2008]

Front 1405

Refrigerating Equipment

Back 1405

Any mechanically operated equipment used for storing, below normal ambient temperature, hazardous materials having flammability ratings of 3 or 4. (LAB)

Front 1406

Refrigerating Equipment

Back 1406

Any mechanically operated equipment used for storing materials below normal ambient temperature, including refrigerators, freezers, and similar equipment. (See 12.2.2 and A.12.2.2.2.)

Front 1407

Refrigerator (Using Gas Fuel)

Back 1407

An appliance that is designed to extract heat from a suitable chamber.

Front 1408

Refurbishing

Back 1408

The replacement of aircraft interior fabrics, plastic headliners, rugs or synthetic flooring, sound-insulating materials, windows, doors, or paneling.

Front 1409

Refuse Derived Fuel (RDF)

Back 1409

A boiler fuel manufactured by means of a process that includes
storing, shredding, classifying, and conveying of municipal solid waste.

Front 1410

Refuse-Derived Fuel (RDF)

Back 1410

A solid fuel prepared from municipal solid waste. The waste material
is usually refined by shredding, air classification, magnetic separation,
or other means. The fuel can be packed, chopped, pelletized,
pulverized, or subject to other mechanical treatment.

Front 1411

Regenerative Catalytic
Oxidizer (RCO)

Back 1411

A combustion system in which the burner(s) directly heats VOCs or HCs after the gas stream is preheated to the destruction temperature by the periodic flow reversal of the gas stream through beds of
ceramic heat recovery media with a coating or layer of catalyst that are alternately heated by the product gases during an exhaust cycle and then have given up their heat to the incoming reactant gases during
an inlet cycle.

Front 1412

Regenerative Thermal
Oxidizer

Back 1412

A combustion device in which the burner(s) directly heats VOCs or HCs after the gas stream is preheated to the destruction temperature by the periodic flow reversal of the gas stream through heat storage media that alternately have been heated by the product gases during an exhaust cycle and then have given up their heat to the incoming reactant gases during an inlet cycle.

Front 1413

Region

Back 1413

A geographic area that includes the local and neighboring jurisdiction for an EMS agency.

Front 1414

Register (Burner Air)

Back 1414

A set of dampers for a burner, or air supply system to a particular burner, used to distribute the combustion air admitted to the combustion chamber. Frequently controls the direction and velocity of the airstream for efficient mixing with the incoming fuel.

Front 1415

Registered Architect

Back 1415

A person licensed to practice architecture in a jurisdiction, subject to all laws and limitations imposed by the jurisdiction.

Front 1416

Registered Design Professional
(RDP)

Back 1416

An individual who is registered or licensed to practice his/her respective design profession as defined by the statutory requirements of the professional registration laws of the state or jurisdiction in which the project is to be constructed.

Front 1417

Registered Design
Professional (RDP)

Back 1417

An individual who is registered or licensed to practice his/her respective design profession as defined by the statutory requirements of the professional registration laws of the state or jurisdiction in which the project is to be constructed. [5000, 2009]

Front 1418

Registered Licensed
Professional Engineer

Back 1418

A person who is registered as a professional engineer in the state where the work is to be performed.

Front 1419

Registered Professional
Engineer

Back 1419

A person who is registered as a professional engineer in the state where the work is to be performed.

Front 1420

Regular Stage

Back 1420

A stage with a height of 50 ft (15 m) or less measured from the lowest point on the stage floor to the highest point of the deck above.

Front 1421

Regular Stage

Back 1421

A stage with a height of 50 ft (15 m) or less measured from the lowest point on the stage floor to the highest point of the roof or floor deck above.

Front 1422

Regulated High-Pressure
Piping

Back 1422

Piping with a pressure in excess of 1.0 psig (7 kPa) and less than or equal to 30 psig (207 kPa).

Front 1423

Regulated Waste

Back 1423

Liquid or semi-liquid blood, body fluids, or other potentially infectious materials; contaminated items that would release blood, body fluids, or other potentially infectious materials in a liquid or
semi-liquid state if compressed; items that are caked with dried blood, body fluids, or other potentially infectious materials and are capable of releasing these materials during handling; contaminated sharps; and pathological and microbiological wastes containing blood, body fluids, or other potentially infectious materials.

Front 1424

Regulator Vent

Back 1424

The opening in the atmospheric side of the regulator housing permitting the in and out movement of air to compensate for the movement of the regulator diaphragm.

Front 1425

Rehabilitation

Back 1425

An intervention designed to mitigate against the physical, physiological, and emotional stress of fire fighting in order to sustain a member’s energy, improve performance, and decrease the likelihood of on-scene injury or death.

Front 1426

Rehabilitation

Back 1426

For the purposes of this code, the act or process of making possible a compatible use of a property through repair, alteration, and additions, while preserving those portions or features that convey its historical, cultural, or architectural values.

Front 1427

Rehabilitation

Back 1427

The act or process of returning a structure to a state of utility through repair or alteration that makes possible an efficient contemporary use, including the preservation of those portions or features of the structure that are significant to its historical, architectural, or cultural value.

Front 1428

Rehabilitation Manager

Back 1428

The person or officer assigned to manage rehabilitation.

Front 1429

Rehabilitation Work Area

Back 1429

That portion of a building affected by any renovation, modification, or reconstruction work as initially intended by the owner and indicated as such in the permit.

Front 1430

Rehabilitation Work Area

Back 1430

That portion of a building affected by any renovation, modification, or reconstruction work as initially intended by the owner, and indicated as such in the permit, but excluding other portions of the building where incidental work entailed by the intended work must be performed, and excluding portions of the building where work not initially intended by the owner is specifically required.

Front 1431

Rehearsal

Back 1431

A practice performance during which no audience is present.

Front 1432

Reinforced Concrete

Back 1432

Concrete reinforced with no less than the minimum amount required by ACI 318, prestressed or nonprestressed, and designed on the assumption that the two materials act together in resisting forces. [ASCE/SEI 7:11.2]

Front 1433

Reinforced Plastic Pallet

Back 1433

A plastic pallet incorporating a secondary reinforcing material (such as steel or fiberglass) within the pallet.

Front 1434

Reinforced Thermosetting
Resin Conduit (RTRC)

Back 1434

A rigid nonmetallic conduit (RNC) of circular cross section, with integral or associated couplings, connectors, and fittings for the installation of electrical conductors and cables.

Front 1435

Reinforcement

Back 1435

An additional layer of a textile material applied to a specific area of
the protective garment to make that portion of the protective garment
more resistant to wear.

Front 1436

Reinforcement

Back 1436

The structural support for fire hose that is often in the form of woven yarn.

Front 1437

Reinjection

Back 1437

In a fluidized bed boiler, the return or recycling of material removed or carried from the furnace back to the furnace. Also refers to fly ash collected and returned to the furnace or combustion chamber, sometimes expressed as a percent of the total collected.

Front 1438

Reject Container Receptacle

Back 1438

A receptacle used to store scrap, partially filled, or fully filled aerosol containers prior to disposal.

Front 1439

Rekindle

Back 1439

A return to flaming combustion after apparent but incomplete extinguishment.

Front 1440

Rekindle

Back 1440

A return to flaming combustion after apparent but incomplete extinguishment. [921, 2004]

Front 1441

Related Activities

Back 1441

Any and all functions that fire department members can be called upon to perform in the execution of their duties.

Front 1442

Related Duties

Back 1442

Any and all functions that fire department members can be called upon to perform in the execution of their duties.

Front 1443

Relative Analgesia

Back 1443

A state of sedation and partial block of pain perception produced in a patient by the inhalation of concentrations of nitrous oxide insufficient to produce loss of consciousness (conscious sedation).

Front 1444

Relative Analgesia

Back 1444

A state of sedation and partial block of pain perception produced in a patient by the inhalation of concentrations of nitrous oxide insufficient to produce loss of consciousness (conscious sedation). (GAS)

Front 1445

Relative Humidity

Back 1445

The ratio between the amount of water vapor in the gas at the time of measurement and the amount of water vapor that could be in the gas when condensation begins, at a given temperature.

Front 1446

Relay-Supply Hose

Back 1446

A single-jacket fire hose of 3 1/ in. (90 mm) diameter or larger used
2
to move large volumes of water at low pressure and manufactured
prior to January 1987 to meet the requirements of the 1979 and
previous editions of NFPA 1961, Standard on Fire Hose.

Front 1447

Release

Back 1447

The physical discharge or emission of aerosol as a consequence of the condensed aerosol generator’s actuation or operation of the
dispersed aerosol agent container.

Front 1448

Releasing Fire Alarm System

Back 1448

A protected premises fire alarm system that is part of a fire suppression system and/or which provides control inputs to a fire suppression system related to the fire suppression systems sequence of operations and outputs for other signaling and notification.
(SIG-PRO)

Front 1449

Releasing Service Fire Alarm
Control Unit

Back 1449

A protected premises fire alarm control unit specifically listed for releasing service that is part of a fire suppression system and which provides control outputs to release a fire suppression agent based on either automatic or manual input. (SIG-PRO)

Front 1450

Reliability

Back 1450

The probability that the system, structure, or component of interest will function without failure for a given interval of time or number of cycles. For standby systems, structures, or components, this includes the probability of success upon demand.

Front 1451

Relief Opening

Back 1451

The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue products from the draft hood in the event of no draft, backdraft, or stoppage beyond the draft hood and to permit inspiration of air into the draft hood in the event of a strong chimney updraft.

Front 1452

Relief Sewer

Back 1452

A sewer built to carry the flows in excess of the capacity of an existing sewer; also, a sewer intended to carry a portion of the flow from a district in which the existing sewers are of insufficient capacity.

Front 1453

Relief Valve

Back 1453

A device that allows the bypass of fluids to limit the pressure in a system.

Front 1454

Relief Valve

Back 1454

A device that allows the diversion of liquid to limit excess pressure in a system.

Front 1455

Relief Valve

Back 1455

A safety valve designed to forestall the development of a dangerous condition by relieving either pressure, temperature, or vacuum in a hot water supply system.

Front 1456

Reloadable Motor System

Back 1456

A combination of a reloadable rocket motor casing and a
motor-reloading kit that are designed to be used together as a system.

Front 1457

Reloadable Rocket Motor

Back 1457

A rocket motor that has been designed and manufactured so that the user can load, reload, and reuse the pressure-containing body or casing using the parts and components of a motor-reloading kit.

Front 1458

Reloadable Rocket Motor

Back 1458

A rocket motor that has been designed and manufactured so that the user can load, reload, and reuse the pressure-containing body or casing using the parts and components of a motor-reloading kit. [1125, 2007]

Front 1459

Relocatable Power Tap

Back 1459

A device for indoor use consisting of an attachment plug on one end of a flexible cord and two or more receptacles on the opposite end, and has overcurrent protection.

Front 1460

Relocation

Back 1460

The movement of occupants from a fire zone to a safe area within the same building. (SIG-PRO)

Front 1461

Remote

Back 1461

A Level 3 source of supply that is accessed by exiting the single or multiple treatment facility. (PIP)

Front 1462

Remote Area

Back 1462

A geographic area that requires a travel distance of at least 8 miles to provide emergency services.

Front 1463

Remote Audio Verification
(RAV)

Back 1463

The attempt by monitoring station personnel to establish that an emergency exists at the protected premises by listening to live audio feed from the protected premises.

Front 1464

Remote-Control Circuit

Back 1464

Any electrical circuit that controls any other circuit through a relay or an equivalent device.

Front 1465

Remote Heated Vaporizer

Back 1465

A heated vaporizer in which the primary heat source is separated from the actual vaporizing exchanger, and an intermediate fluid (e.g., water, steam, isopentane, glycol) is used as the heat transport medium.

Front 1466

Remote Heated Vaporizer

Back 1466

A vaporizer in which the primary heat source is separated from the actual vaporizing exchanger and an intermediate fluid (e.g., water, steam, isopentane, and glycol) is used as the heat transport medium.

Front 1467

Remote Location

Back 1467

A location suitably separated from the engine installation so as to be accessible during an engine fire.

Front 1468

Remotely Located, Manually
Activated Shutdown Control

Back 1468

A control system that is designed to initiate shutdown of the flow of gas or liquid that is manually activated from a point located some distance from the delivery system.

Front 1469

Remote Machine Room and Control Room (for Elevator, Dumbwaiter)

Back 1469

A machine room or control room that is not attached to the outside perimeter or surface of the walls, ceiling, or floor of the hoistway.

Front 1470

Remote Machinery Space and Control Space (for Elevator, Dumbwaiter)

Back 1470

A machinery space or control space that is not within the hoistway, machine room, or control room and that is not attached to the outside perimeter or surface of the walls, ceiling, or floor of the hoistway.

Front 1471

Remote Operation

Back 1471

Control from a location removed from the combustion area.

Front 1472

Remote Supervising Station

Back 1472

A supervising station to which alarm, supervisory, or trouble signals or any combination of those signals emanating from protected premises fire alarm systems are received and where personnel are in attendance at all times to respond. (SIG-SSS)

Front 1473

Remote Supervising Station

Back 1473

See 3.3.194, Supervising Station.

Front 1474

Remote Supervising Station
Fire Alarm System

Back 1474

A protected premises fire alarm system (exclusive of any connected to a public fire reporting system) in which alarm, supervisory, or trouble signals are transmitted automatically to, recorded in, and supervised from a remote supervising station that has competent, and experienced servers and operators who, upon receipt of a signal, take such action as required by this Code. (SIG-SSS)

Front 1475

Remote Supervising Station
Service

Back 1475

The use of a system including the protected premises fire alarm system(s) in which the operations of circuits and devices are signaled to, recorded in, and supervised from a supervising station that has competent and experienced operators who, upon receipt of a signal, take such action as required by this Code. Related activities at the protected premises, such as equipment installation, inspection, testing, and maintenance, are the responsibility of the owner.
(SIG-SSS)

Front 1476

Remote Supervising Station
Service

Back 1476

See 3.3.195, Supervising Station Service.

Front 1477

Remote Video Verification
(RVV)

Back 1477

The attempt by monitoring station personnel to establish that an emergency exists at the protected premises by watching video received from the protected premises.

Front 1478

Removable

Back 1478

An integrated PASS that is removable so that it can be used independently of the item or items with which it is integrated.

Front 1479

Removable

Back 1479

Capable of being transferred to another location with a limited application of effort and tools.

Front 1480

Removable Winch

Back 1480

A winch with quick disconnects for power and controls that can be temporarily mounted on the apparatus at a permanently installed mounting receiver.

Front 1481

Rendezvous Point

Back 1481

A prearranged reference point, that is, road junction, crossroad, or other specified place, where personnel/vehicles responding to an emergency situation initially proceed to receive directions to staging areas or the accident/incident site or both.

Front 1482

Renovation

Back 1482

The replacement in kind or strengthening of load-bearing elements; or the refinishing, replacement, bracing, strengthening, or upgrading of existing materials, elements, equipment or fixtures, or both, without reconfiguration of spaces.

Front 1483

Renovation

Back 1483

The replacement in kind or strengthening of load-bearing elements; or the refinishing, replacement, bracing, strengthening, or upgrading of existing materials, elements, equipment or fixtures, or both, without reconfiguration of spaces. [5000, 2006]

Front 1484

Renovation

Back 1484

The replacement in kind or strengthening of load-bearing elements; or the refinishing, replacement, bracing, strengthening, or upgrading of existing materials, elements, equipment, or fixtures, without involving the reconfiguration of spaces.

Front 1485

Repair

Back 1485

A process that returns the combustion system or subsystem to its original design specifications or criteria.

Front 1486

Repair

Back 1486

The patching, restoration, or painting of materials, elements, equipment, or fixtures for the purpose of maintaining such materials, elements, equipment, or fixtures in good or sound condition.

Front 1487

Repair

Back 1487

The patching, restoration, or painting of materials, elements, equipment, or fixtures for the purposes of maintaining such materials, elements, equipment, or fixtures in good or sound condition. [5000, 2006]

Front 1488

Repair

Back 1488

The patching, restoration, or painting of materials, elements, equipment, or fixtures for the purposes of maintaining such materials, elements, equipment, or fixtures in good or sound condition, not including work that is covered by Section 15.10.

Front 1489

Repair

Back 1489

To restore to sound condition after failure or damage.

Front 1490

Repair Garage

Back 1490

A building, structure, or portions thereof wherein major repair or painting or body and fender work is performed on motorized vehicles or automobiles, and includes associated floor space used for offices, parking, and showrooms.

Front 1491

Repair Garage

Back 1491

A building, structure, or portions thereof wherein major repair, painting, or body and fender work is performed on motorized vehicles or automobiles, and includes associated floor space used for offices, parking, and showrooms.

Front 1492

Repeatability

Back 1492

The ability of a device to maintain a constant set point characteristic.

Front 1493

Repeater

Back 1493

A device for receiving and re-transmitting one-way or two-way communication signals.

Front 1494

Repeater Station

Back 1494

The location of the equipment needed to relay signals between supervising stations, subsidiary stations, and protected premises. (SIG-SSS)

Front 1495

Replace

Back 1495

To remove an unserviceable item and install a serviceable counterpart in its place.

Front 1496

Replace in Kind

Back 1496

As applied to vehicles and facilities, to furnish with new parts or equipment of the same type but not necessarily of identical design.

Front 1497

Replacement

Back 1497

The removal of an existing component or system and the installation of a similar component or system generally of the same model or the same capability (i.e., “like for like” replacement).

Front 1498

Replacement Air

Back 1498

Air deliberately brought into the structure, then specifically to the vicinity of either a combustion process or a mechanically or thermally forced exhausting device, to compensate for the vapor and/or gases being consumed or expelled.

Front 1499

Replacement-in-Kind

Back 1499

A replacement that satisfies the design specifications.

Front 1500

Replacement-in-Kind

Back 1500

A replacement that satisfies the design specifications. [484, 2006]

Front 1501

Report

Back 1501

The act of providing an account of facts relating to past events or the acts of an organization or its individuals.

Front 1502

Reportable Fire

Back 1502

Any unfriendly, hostile fire that comes to the attention of an agency keeping fire records, whether discovered in progress or discovered after extinguishment.

Front 1503

Reporting Locations

Back 1503

Any one of six facilities/locations where incident-assigned resources can check in.

Front 1504

Requester

Back 1504

A company or entity that requests the survey by the Marine Chemist and is listed at the top of the Marine Chemist Certificate in the space, Survey requested by.

Front 1505

Required

Back 1505

Required by this Code.

Front 1506

Required Strength

Back 1506

Strength of a member, cross section, or connection required to resist factored loads or related internal moments and forces in such combinations as stipulated by ASCE/SEI 7. [ASCE/SEI 7:11.2]

Front 1507

Requisite Equipment

Back 1507

Specific tools and equipment that are critical to performing a specific type of technical rescue.

Front 1508

Requisite Knowledge

Back 1508

Fundamental knowledge one must have in order to perform a specific task.

Front 1509

Requisite Knowledge

Back 1509

Fundamental knowledge one must have in order to perform a specific task. [1031, 2003]

Front 1510

Requisite Knowledge

Back 1510

Fundamental knowledge one must have in order to perform a specific task. [1031, 2009]

Front 1511

Requisite Skills

Back 1511

The essential skills one must have in order to perform a specific task.

Front 1512

Requisite Skills

Back 1512

The essential skills one must have in order to perform a specific task. [1031, 2003]

Front 1513

Requisite Skills

Back 1513

The essential skills one must have in order to perform a specific task. [1031, 2009]

Front 1514

Rescue

Back 1514

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility.

Front 1515

Rescue

Back 1515

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility. [1410:1.3]

Front 1516

Rescue

Back 1516

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility. [1500,
2002].

Front 1517

Rescue

Back 1517

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility. [1500,
2007]

Front 1518

Rescue

Back 1518

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility. [1500:3.3]

Front 1519

Rescue

Back 1519

Those activities directed at locating endangered persons at an emergency incident, removing those persons from danger, treating the injured, and providing for transport to an appropriate health care facility. (See also 3.3.93, Technical Rescue.)

Front 1520

Rescue and Recovery
Technical Rescue Protective
Ensemble

Back 1520

Multiple elements of compliant protective clothing and protective equipment designed and configured as an ensemble to provide limited protection in operational settings where exposure to physical, thermal, liquid, and body fluid-borne pathogen hazards is expected.

Front 1521

Rescue and Recovery Technical Rescue Protective Ensemble Elements

Back 1521

The parts that comprise the rescue and recovery technical rescue protective ensemble, that include coats, trousers, coveralls, helmets, gloves, footwear, and interface components.

Front 1522

Rescue and Recovery Technical Rescue Protective Footwear Element

Back 1522

The element of the certified rescue and recovery technical rescue protective ensemble that provides protection to the foot, ankle, and lower leg.

Front 1523

Rescue and Recovery Technical Rescue Protective Garment Element

Back 1523

The coat, trouser, or coverall element of the certified rescue and recovery technical rescue protective ensemble that provides protection to the upper and lower torso, arms, and legs.

Front 1524

Rescue and Recovery Technical Rescue Protective Glove Element

Back 1524

The element of the certified rescue and recovery technical rescue protective ensemble that provides protection to the hand and wrist.

Front 1525

Rescue and Recovery Technical Rescue Protective Goggle Element

Back 1525

The element of the certified rescue and recovery technical rescue protective ensemble that provides partial protection to the face and eyes.

Front 1526

Rescue and Recovery Technical Rescue Protective Helmet Element

Back 1526

The element of the certified rescue and recovery technical rescue protective ensemble that provides protection to the head.

Front 1527

Rescue Area

Back 1527

An area surrounding the incident site (e.g., collapsed structure or trench) whose size is proportional to the hazards that exist.

Front 1528

Rescue Area

Back 1528

Sometimes called the “hot,” “danger,” or “collapse” zone, an area surrounding the incident site (e.g., collapsed structure or trench) that has a size proportional to the hazards that exist.

Front 1529

Rescue Attendant

Back 1529

A person who is qualified to be stationed outside a confined space to monitor rescue entrants, summon assistance, and perform non-entry rescues.

Front 1530

Rescue Company

Back 1530

A group of fire fighters who work as a unit and are equipped with one or more rescue vehicles.

Front 1531

Rescue Entrant

Back 1531

A person entering a confined space for the specific purpose of rescue.

Front 1532

Rescue Incident

Back 1532

An emergency incident that primarily involves the rescue of persons subject to physical danger and that can include the provision of emergency medical services.

Front 1533

Rescue Incident

Back 1533

An emergency incident that primarily involves the rescue of persons subject to physical danger and that could include the provision of emergency medical care, but not necessarily.

Front 1534

Rescue Path

Back 1534

A fire-free path from an aircraft accident site to a safe area. This path, normally selected by evacuees, must be maintained by fire fighters during the evacuation process.

Front 1535

Rescue Personnel

Back 1535

Personnel assigned to extricate injured or trapped occupants from disabled competition vehicles.

Front 1536

Rescue Service

Back 1536

The rescue team designated for confined space rescue by the AHJ.

Front 1537

Rescue Team

Back 1537

A combination of rescue-trained individuals who are equipped and available to respond to and perform technical rescues.

Front 1538

Rescue Team Leader

Back 1538

The person designated within the incident command system as rescue group/division officer responsible for direct supervision of the rescue team operations.

Front 1539

Rescue Tool

Back 1539

An abbreviation for powered rescue tool.

Front 1540

Rescue Vehicle

Back 1540

A special vehicle, also known as a heavy rescue or squad, equipped with tools and equipment to perform one or more types of special rescue such as building collapse, confined space, high angle, vehicle extrication, and water rescue.

Front 1541

Research and Development
(R&D)

Back 1541

An activity in an installation specifically designated for research or development conducted with custom or special electrical equipment.

Front 1542

Reserve Capacity

Back 1542

The ability of a battery to sustain a minimum electrical load in the event of a charging system failure or a prolonged charging system deficit.

Front 1543

Reserve Capacity

Back 1543

The ability of a battery to sustain a minimum electrical load in the event of a charging system failure or a prolonged charging system deficit. [1901, 2003]

Front 1544

Reserve Capacity Rating

Back 1544

The number of minutes a new, fully charged battery at 26.7°C (80°F) can be discharged at 25 amperes while maintaining 1.75 volts per cell or higher.

Front 1545

Reserve Fire Apparatus

Back 1545

A fire apparatus retained as backup apparatus and used to replace a primary apparatus when the primary apparatus is out of service.

Front 1546

Reserve Supply

Back 1546

Where existing, that portion of the supply equipment that automatically supplies the system in the event of failure of the operating supply. The reserve supply only functions in an emergency and not as a normal operating procedure. (PIP)

Front 1547

Reserve Supply

Back 1547

Where provided, that portion of the source equipment that automatically supplies the system in the event of failure of the primary and secondary operating supply. (PIP)

Front 1548

Reset

Back 1548

A control function that attempts to return a system or device to its normal, nonalarm state. (SIG-FUN)

Front 1549

Residential Board and Care
Occupancy

Back 1549

A building or portion thereof that is used for lodging and boarding of four or more residents, not related by blood or marriage to the
owners or operators, for the purpose of providing personal care services. [101:3.3]

Front 1550

Residential Board and Care
Occupancy

Back 1550

A building or portion thereof that is used for lodging and boarding of four or more residents, not related by blood or marriage to the
owners or operators, for the purpose of providing personal care services. [101, 2006]

Front 1551

Residential Board and Care
Occupancy

Back 1551

A building or portion thereof that is used for lodging and boarding of four or more residents, not related by blood or marriage to the
owners or operators, for the purpose of providing personal care services. [101, 2006] (SIG-HOU)

Front 1552

Residential Board and Care
Occupancy

Back 1552

A building or portion thereof that is used for lodging and boarding of four or more residents, not related by blood or marriage to the
owners or operators, for the purpose of providing personal care services. [5000, 2009]

Front 1553

Residential Board and Care
Occupancy

Back 1553

An occupancy used for lodging and boarding of four or more residents, not related by blood or marriage to the owners or operators, for the purpose of providing personal care services.

Front 1554

Residential Board and Care
Occupancy

Back 1554

An occupancy used for lodging and boarding of four or more residents, not related by blood or marriage to the owners or operators, for the purpose of providing personal care services. [5000,
2009]

Front 1555

Residential Board and Care
Resident

Back 1555

A person who receives personal care and resides in a residential board and care facility.

Front 1556

Residential Dwelling Unit
(Accessibility)

Back 1556

A building intended to be used primarily as a long-term residence, not including transient lodging, inpatient medical care, licensed
long-term care, and detention or correctional facilities.

Front 1557

Residential Fueling Facility
(RFF)

Back 1557

An assembly with a capacity not exceeding 5 Scf/min (0.14 standard cubic meter/min) of natural gas, that can be used for fueling a vehicle at a home or residence.

Front 1558

Residential Garage

Back 1558

A building or room in which self-propelled passenger vehicles are or can be stored and that will not normally be used for other than minor service or repair operations on such stored vehicles.

Front 1559

Residential Occupancies

Back 1559

Occupancies, as specified in the scope of this standard, that include the following, as defined in NFPA 101, Life Safety Code: (1) apartment buildings, (2) lodging and rooming houses, (3) board and care facilities, and (4) hotels, motels, and dormitories.

Front 1560

Residential Occupancy

Back 1560

An occupancy that provides sleeping accommodations for purposes other than health care or detention and correctional.

Front 1561

Residential Occupancy

Back 1561

An occupancy that provides sleeping accommodations for purposes other than health care or detention and correctional. [101, 2006]

Front 1562

Residential Occupancy

Back 1562

An occupancy that provides sleeping accommodations for purposes other than health care or detention and correctional. [101, 2006] (SIG-HOU)

Front 1563

Residential Occupancy

Back 1563

An occupancy that provides sleeping accommodations for purposes other than health care or detention and correctional. [101, 2009]

Front 1564

Residential Pool

Back 1564

A swimming pool that is intended for noncommercial use by not more than three owner families and their guests.

Front 1565

Residential Sewer

Back 1565

A sewer intended to receive only residential wastewater. (See also
3.3.54.4, Combined Sewer; 3.3.54.12, Sanitary Sewer; and 3.3.54.13, Storm
Sewer.)

Front 1566

Residential Spa

Back 1566

A permanent spa in which the water heating and water circulation equipment is not an integral part of the product.

Front 1567

Residential Sprinkler

Back 1567

A type of fast-response sprinkler having a thermal element with an RTI of 50 (meters-seconds)1/2 or less, that has been specifically investigated for its ability to enhance survivability in the room of fire origin, and is listed for use in the protection of dwelling units.

Front 1568

Residential Sprinkler

Back 1568

A type of fast-response sprinkler having a thermal element with an RTI of 50 (meters-seconds)1/2 or less, that has been specifically investigated for its ability to enhance survivability in the room of fire origin, and that is listed for use in the protection of dwelling units.

Front 1569

Residential Sprinkler

Back 1569

A type of fast-response sprinkler that meets the criteria of 3.6.1(a)(1) of NFPA 13 that has been specifically investigated for its ability to enhance survivability in the room of fire origin and is listed for use in the protection of dwelling units. [13, 2007]

Front 1570

Residential Sprinkler

Back 1570

A type of fast-response sprinkler that meets the criteria of 3.6.1(a)(1) that has been specifically investigated for its ability to enhance survivability in the room of fire origin and is listed for use in the protection of dwelling units.

Front 1571

Residential-Type and Building Heating Appliance-Type Factory-Built Chimney

Back 1571

A chimney suitable for continuous use at 1000°F (538°C), composed of listed, factory-built components that might be fully enclosed in combustible, residential-type construction, and that is assembled in accordance with the terms of the listing to form the completed chimney.

Front 1572

Residential-Type Heating
Appliance

Back 1572

Fuel-burning appliances, not including high-pressure steam boilers, that are mainly used in residences but that might be used in other buildings, and that do not produce continuous flue gas temperatures exceeding 1000°F (538°C).

Front 1573

Residential-Type Incinerator

Back 1573

An incinerator for the burning of ordinary combustible waste material and garbage (Type 2 waste) incidental to residential occupancy and having a firebox or charging compartment not greater than 5 ft3 (0.142 m3) in capacity. Residential-type incinerators can be self-contained,
factory-built units that do not necessitate field construction, or can be of a built-in type designed to be encased in masonry or installed in a masonry wall or chimney.

Front 1574

Residential-Type Range

Back 1574

A range intended primarily for residential cooking purposes.

Front 1575

Residential Wastewater

Back 1575

Wastewater derived from areas consisting of single- and multiple-family residences.

Front 1576

Residual Hydrant

Back 1576

The hydrant that is used for measuring static and residual pressures during a flow test.

Front 1577

Residual Hydrant

Back 1577

The hydrant that is used for measuring static and residual pressures during a flow test. [24, 2007]

Front 1578

Residual Pressure

Back 1578

For standpipe systems, pressure acting on a point in the system with a flow being delivered.

Front 1579

Residual Pressure

Back 1579

The pressure that exists in the distribution system, measured at the residual hydrant at the time the flow readings are taken at the flow hydrants.

Front 1580

Residual Pressure

Back 1580

The pressure that exists in the distribution system, measured at the residual hydrant at the time the flow readings are taken at the flow hydrants. [24, 2007]

Front 1581

Resin Application Area

Back 1581

Any area in which polyester resins or gelcoats are spray applied.

Front 1582

Resistance Factor

Back 1582

A factor that accounts for deviations of the actual strength from the nominal strength and the manner and consequences of failure (also called strength reduction factor). [ASCE/SEI 7:1.2]

Front 1583

Resistance Heating Element

Back 1583

A specific separate element to generate heat that is applied to the pipeline or vessel externally or internally.

Front 1584

Resistance Heating Element

Back 1584

A specific separate element to generate heat that is embedded in or fastened to the surface to be heated.

Front 1585

Resistance Heating System

Back 1585

A heating system in which heat is produced by current flow through a resistive conductor.

Front 1586

Resource Assessment

Back 1586

The component of the assessment phase that involves the determination for the need for additional resources. Resource assessment can be ongoing throughout the entire incident.

Front 1587

Resource Management

Back 1587

A system for identifying available resources to enable timely and unimpeded access to resources needed to prevent, mitigate, prepare for, respond to, or recover from an incident.

Front 1588

Resource Management

Back 1588

Under the NIMS, includes mutual-aid agreements; the use of special federal, state, local, and tribal teams; and resource mobilization protocols.

Front 1589

Resources

Back 1589

All personnel and equipment that are available, or potentially available, for assignment to incidents.

Front 1590

Resources

Back 1590

All personnel and major items of equipment that are available, or potentially available, for assignments to incidents for which status is maintained.

Front 1591

Resources

Back 1591

All personnel and major items of equipment that are available, or potentially available, for assignment to incidents.

Front 1592

Resources

Back 1592

All personnel and major items of equipment that are available, or potentially available, for assignment to incidents. [1051, 2007]

Front 1593

Resources

Back 1593

Any personnel, materials, or both, including volunteer educators, educational or promotional materials, and financial resources, required to meet the needs of a program.

Front 1594

Resources

Back 1594

Personnel and major items of equipment, supplies, and facilities available or potentially available for assignment to incident operations and for which status is maintained.

Front 1595

Resource Unit

Back 1595

Functional unit within the planning section responsible for recording the status and accounting for resources committed to incident as well as evaluation of resources currently committed, resources responding to the incident, and anticipated resource needs.

Front 1596

Respirator

Back 1596

A device that provides respiratory protection for the wearer.

Front 1597

Respiratory Equipment

Back 1597

A positive pressure, self-contained breathing apparatus (SCBA) or combination SCBA/supplied-air breathing apparatus certified by the National Institute for Occupational Safety and Health (NIOSH) and certified as compliant with NFPA 1981, Standard on Open-Circuit
Self-Contained Breathing Apparatus for Fire and Emergency Services.

Front 1598

Respiratory Hazard

Back 1598

Any exposure to products of combustion, superheated atmospheres, toxic gases, vapors, or dust, or potentially explosive or oxygen-deficient atmospheres, or any condition that creates a hazard to the respiratory system.

Front 1599

Respiratory Protection

Back 1599

Equipment designed to protect the wearer from the inhalation of contaminants.

Front 1600

Respiratory Protection
Equipment

Back 1600

Devices that are designed to protect the respiratory system against exposure to gases, vapors, or particulates.

Front 1601

Respiratory Protection
Equipment (RPE)

Back 1601

Devices that are designed to protect the respiratory system against exposure to gases, vapors, or particulates. [1404, 2006]

Front 1602

Respiratory Protection Program

Back 1602

A systematic and comprehensive program of training in the use and maintenance of respiratory protection devices and related equipment.

Front 1603

Responder

Back 1603

A person who has responsibility to respond to emergencies and deliver services such as fire fighting, law enforcement, water rescue, emergency medical, emergency management, public health, public works, and other public services.

Front 1604

Responder Rehabilitation

Back 1604

The function and location that include medical evaluation and treatment, food and fluid replenishment, and relief from extreme climatic conditions for emergency responders, according to the circumstances of the incident.

Front 1605

Responding Personnel

Back 1605

Personnel whether public or private available to respond to emergencies.

Front 1606

Respond to Site

Back 1606

Respond to the proper site from which to manually initiate suppressive action.

Front 1607

Response

Back 1607

Immediate and ongoing activities, tasks, programs, and systems to manage the effects of an incident that threatens life, property, operations, or the environment.

Front 1608

Response

Back 1608

That portion of incident management in which personnel are involved in controlling hazardous materials/weapons of mass destruction (WMD) incidents.

Front 1609

Response

Back 1609

The deployment of an emergency service resource to an incident.

Front 1610

Response

Back 1610

The deployment of an emergency service resource to an incident. [901, 2006]

Front 1611

Response Duty

Back 1611

A fire-related service, function, or task identified in the industrial fire brigade organizational statement and assigned to a member to perform.

Front 1612

Response Plan

Back 1612

The action to be taken in response to a carbon monoxide alarm signal.

Front 1613

Response Resources Are
Identified

Back 1613

The time that the PSAP telecommunicator, through computer-aided dispatch or other means, identifies the appropriate resources to send to the scene of the emergency. For example, the telecommunicator might identify ambulance, fire apparatus, quick-response vehicles, police vehicles, specialty vehicles, or other appropriate resources.

Front 1614

Response Time

Back 1614

The total period of time measured from the time of an alarm until the first ARFF vehicle arrives at the scene of an aircraft accident and is in position to apply agent to any fire.

Front 1615

Response Time

Back 1615

The travel time that begins when units are en route to the emergency incident and ends when units arrive at the scene.

Front 1616

Response Unit

Back 1616

A vehicle, equipment, or personnel identified by the AHJ for dispatch purposes.

Front 1617

Responsibility

Back 1617

The accountability of a person or other entity for the event or sequence of events that caused the fire or explosion, spread of the fire, bodily injuries, loss of life, or property damage.

Front 1618

Responsible Party

Back 1618

An organization, office, or individual charged with the classification, retention scheduling, and disposition of records.

Front 1619

Responsible Person

Back 1619

A person who, by education or training, has experience in identifying and resolving problems in a specific area.

Front 1620

Restart

Back 1620

A manually initiated start-up.

Front 1621

Restaurant-Type Range

Back 1621

A range of the type designed for use primarily in restaurant and hotel kitchens.

Front 1622

Restorable Initiating Device

Back 1622

A device in which the sensing element is not ordinarily destroyed in the process of operation, whose restoration can be manual or automatic. (SIG-IDS)

Front 1623

Restoration

Back 1623

The act or process of accurately depicting the form, features, and character of a property as it appeared at a particular period of time by means of the removal of features from other periods of its history, reconstruction of missing features, and repair of damaged or altered features from the restoration period.

Front 1624

Restoration

Back 1624

The act or process of accurately depicting the form, features, and character of a property as it appeared at a particular period of time by means of the removal of features from other periods of its history, reconstruction of missing features, and repair of damaged or altered features from the restoration period. [914, 2001]

Front 1625

Restricted Access Space

Back 1625

Spaces that are not normally occupied by the crew during the course of normal working or watchstanding but that can be periodically checked during the course of their rounds.

Front 1626

Restricted Area

Back 1626

A room, office, building, or facility to which access is strictly and tightly controlled.

Front 1627

Restricted Area

Back 1627

The area within 15 m (50 ft) horizontally of the extraction process.

Front 1628

Restricted Entrance
(Accessibility)

Back 1628

An entrance that is made available for common use on a controlled basis, but not public use, and that is not a service entrance.

Front 1629

Restricted-Flow Orifice (RFO)

Back 1629

A device located in the gas cylinder valve body that restricts the maximum flow rate to 30 L/min (1.06 ft3/min).

Front 1630

Restricted-Use Pesticide

Back 1630

Pesticides classified for restricted use under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) in 40 CFR 152.175. These pesticides shall be permitted to be purchased and applied by applicators who are certified and licensed in accordance with the U.S. Environmental Protection Agency (EPA) regulations.

Front 1631

Restrict Movement of
Exposed

Back 1631

Prevent movement of the exposed beyond the boundaries of the
defended place.

Front 1632

Resuscitation Equipment

Back 1632

Respiratory assist devices such as bag-valve masks, oxygen demand valve resuscitators, pocket masks, and other ventilation devices that are designed to provide artificial respiration or assist with ventilation of a patient.

Front 1633

Retail Sales

Back 1633

The retail display and sale of merchandise to the public within a mercantile occupancy.

Front 1634

Retaining Angle

Back 1634

The metal angle used to retain the fire damper in the opening.

Front 1635

Retaining Wall

Back 1635

A wall that is not laterally supported at the top, and is designed to resist lateral soil load.

Front 1636

Retention System

Back 1636

The complete assembly by which the helmet is retained in position on the head.

Front 1637

Retired Fire Apparatus

Back 1637

A vehicle that was previously a fire apparatus but which, due to age or condition, is no longer capable of supporting the suppression of fires, the mitigation of hazardous situations, or operations at an emergency scene.

Front 1638

Retirement

Back 1638

The process of permanently removing an ensemble element from emergency operations service in the organization.

Front 1639

Retirement

Back 1639

The process of removing protective clothing from service.

Front 1640

Retort

Back 1640

A trough or channel in an underfeed stoker, extending within the furnace, through which fuel is forced upward into the fuel bed.

Front 1641

Retrieval Equipment
(Retrieval System)

Back 1641

Combinations of rescue equipment used for nonentry (external)
rescue of persons from confined spaces.

Front 1642

Retrieval System

Back 1642

Combinations of rescue equipment used for nonentry (external)
rescue of persons from confined spaces.

Front 1643

Retrofit

Back 1643

As applied to vehicles and facilities, to furnish with new parts or equipment to constitute a deliberate modification of the original design (as contrasted with an overhaul or a replacement in kind).

Front 1644

Retrofit Operator

Back 1644

A device labeled as a “retrofit rolling steel fire door operator” intended to replace operator and governor systems (including automatic-closing devices) used on existing listed rolling steel fire doors.

Front 1645

Retroreflection

Back 1645

The reflection of light in which the reflected rays are preferentially returned in the direction close to the opposite of the direction of the incident rays, with this property being maintained over wide variations of the direction of the incident rays.

Front 1646

Retroreflection/Retroflective

Back 1646

The reflection of light in which the reflected rays are preferentially returned in the direction close to the opposite of the direction of the incident rays, with this property being maintained over wide variations of the direction of the incident rays.

Front 1647

Retroreflective Markings

Back 1647

A material that reflects and returns a relatively high proportion of light in a direction close to the direction from which it came.

Front 1648

Retroreflective Markings

Back 1648

A material that reflects and returns a relatively high proportion of light in a direction in the direction close to the direction from which it came.

Front 1649

Return System

Back 1649

An assembly of connected ducts, air passages, or plenums and fittings through which air from the space or spaces to be conditioned is conducted back to the heat exchanger.

Front 1650

RIC

Back 1650

Abbreviation for rapid intervention crew/company.

Front 1651

Rich Mixture

Back 1651

A fuel and oxidizer mixture having more than the stoichiometric concentration of fuel.

Front 1652

Ride Device

Back 1652

A device or combination of devices that carry, convey, or direct a person(s) over or through a fixed or restricted course within a defined area for the primary purpose of amusement or entertainment.

Front 1653

Rigging

Back 1653

The process of building a system to move or stabilize a load.

Front 1654

Rigging Systems

Back 1654

Systems used to move people or loads that can be configured with rope, wire rope, or cable and utilize different means, both mechanical and manual, to move the load.

Front 1655

Rigging Team

Back 1655

As related to caves, a specific combination of resources with a leader, personnel, and common equipment assembled for the purpose of rigging rope systems to negotiate obstacles to assist patient and rescuer movement in or out of the cave.

Front 1656

Rigid Hull Inflatable Boat
(RHIB)

Back 1656

Solid-shaped hull mated with a flexible multicompartment buoyancy tube(s) at the gunwale.

Front 1657

Rigid Intermediate Bulk
Container (RIBC)

Back 1657

An intermediate bulk container (IBC) that can be enclosed in or encased by an outer structure consisting of a steel cage, a single-wall metal or plastic enclosure, or a double wall of foamed or solid plastic.

Front 1658

Rigid Intermediate Bulk
Container (RIBC)

Back 1658

An intermediate bulk container (IBC) that can be enclosed in or encased by an outer structure consisting of a steel cage, a single-wall metal or plastic enclosure, or a double wall of foamed or solid plastic. [654, 2006]

Front 1659

Rigid Metal Conduit (RMC)

Back 1659

A threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed with its integral or associated coupling and appropriate fittings. RMC is generally made of steel (ferrous) with protective coatings or aluminum (nonferrous). Special use types are red brass and stainless steel.

Front 1660

Rigid Metal Conduit (RMC)

Back 1660

A threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables when installed with its integral or associated coupling and appropriate fittings. RMC is generally made of steel (ferrous) with protective coatings or aluminum (nonferrous). Special use types are silicon bronze and stainless steel.

Front 1661

Rigid Nonmetallic Conduit
(RNC)

Back 1661

A nonmetallic raceway of circular cross section, with integral or associated couplings, connectors, and fittings for the installation of electrical conductors and cables. [70:352.2]

Front 1662

Rigid Polyvinyl Chloride
Conduit (PVC)

Back 1662

A rigid nonmetallic conduit (RNC) of circular cross section, with integral or associated couplings, connectors, and fittings for the installation of electrical conductors and cables.

Front 1663

Ring

Back 1663

An auxiliary equipment system component; an ungated load-bearing connector.

Front 1664

Rise

Back 1664

The maximum distance measured from the surface of a test table to the underside of the hose that a length of hose lifts off that table when it is pressurized at its proof test pressure.

Front 1665

Riser

Back 1665

A pipe leading from the fire main to the fire station (hydrants) on upper deck levels.

Front 1666

Risers

Back 1666

The vertical pipes connecting the system main line(s) with the branch lines on the various levels of the facility. (PIP)

Front 1667

Risers

Back 1667

The vertical supply pipes in a sprinkler system.

Front 1668

Risk

Back 1668

A combination of the probability and the degree of possible injury or damage to health in a hazardous situation.

Front 1669

Risk

Back 1669

A measure of the probability and severity of adverse effects that result from an exposure to a hazard.

Front 1670

Risk

Back 1670

A measure of the probability and severity of adverse effects that result from an exposure to a hazard. [1451, 2001]

Front 1671

Risk

Back 1671

A measure of the probability and severity of adverse effects that result from an exposure to a hazard. [1451, 2002]

Front 1672

Risk

Back 1672

A measure of the probability and severity of adverse effects that result from an exposure to a hazard. [1451:3.3]

Front 1673

Risk

Back 1673

A measure of the probability and severity of adverse effects that result from exposure to a hazard.

Front 1674

Risk

Back 1674

A measure of the probability and severity of adverse effects that result from exposure to a hazard. [1451, 2007]

Front 1675

Risk

Back 1675

Chance of a fire starting from any cause, or the probability and severity of adverse effects that result from an exposure to a hazard.

Front 1676

Risk

Back 1676

In nuclear facilities, the set of probabilities and consequences for all possible accident scenarios associated with a given plant or process.

Front 1677

Risk

Back 1677

The degree of peril; the possible harm that might occur that is represented by the statistical probability or quantitative estimate of the frequency or severity of injury or loss.

Front 1678

Risk

Back 1678

The measure of the probability and severity of adverse effects that result from an exposure to a wildland fire (direct flames, radiant heat, or firebrands).

Front 1679

Risk

Back 1679

The paired probabilities and consequences for possible undesired events associated with a given facility or process.

Front 1680

Risk Assessment

Back 1680

An assessment of the likelihood, vulnerability, and magnitude of incidents that could result from exposure to hazards.

Front 1681

Risk Assessment

Back 1681

The process by which the intended use of the machine, the tasks and hazards, and the level of risk are determined.

Front 1682

Risk-Based Response Process

Back 1682

Systematic process by which responders analyze a problem involving hazardous materials/weapons of mass destruction (WMD), assess the hazards, evaluate the potential consequences, and determine appropriate response actions based upon facts, science, and the circumstances of the incident.

Front 1683

Risk/Benefit Analysis

Back 1683

A decision made by a responder based on a hazard identification and situation assessment that weighs the risks likely to be taken against the benefits to be gained for taking those risks.

Front 1684

Risk-Benefit Analysis

Back 1684

An assessment of the risk to rescuers versus the benefits that can be derived from their intended actions.

Front 1685

Risk Control

Back 1685

The management of risk through stopping losses via exposure avoidance, prevention of loss (addressing frequency) and reduction of loss (addressing severity), segregation of exposures, and contractual transfer techniques.

Front 1686

Risk Financing

Back 1686

The aspect of risk management that provides ways to pay for losses.

Front 1687

Risk Informed Approach

Back 1687

A philosophy whereby risk insights are considered together with other factors to establish performance requirements that better focus attention on design and operational issues commensurate with their importance to public health and safety.

Front 1688

Risk Management

Back 1688

Identification and analysis of exposure to hazards, selection of appropriate techniques to control exposures, implementation of chosen techniques, and monitoring of results to ensure the health and safety of members.

Front 1689

Risk Management

Back 1689

The process of planning, organizing, directing, and controlling the resources and activities of an organization in order to minimize detrimental effects on that organization.

Front 1690

Risk Management

Back 1690

The process of planning, organizing, directing, and controlling the resources and activities of an organization in order to minimize detrimental effects on that organization. [1250, 2004]

Front 1691

Risk Management Plan

Back 1691

A risk management plan is a written document that evaluates all the activities typically performed by a fire department and identifies the risk associated with those activities.

Front 1692

Road

Back 1692

Any access, not including a driveway, providing access to more than one parcel and primarily intended for vehicular access.

Front 1693

Road

Back 1693

Any accessway, not including a driveway, that gives access to more than one parcel and is primarily intended for vehicular access.

Front 1694

Road Course

Back 1694

A closed, permanent course on which there are turns in both directions and that might incorporate changes in elevation.

Front 1695

Road Spray Location

Back 1695

Any underbody or underchassis location that is subject to road spray.

Front 1696

Road Tunnel

Back 1696

An enclosed roadway for motor vehicle traffic with vehicle access that is limited to portals.

Front 1697

Roadway

Back 1697

Any passageway within the subterranean space intended for use by motor vehicles or by pedestrian traffic.

Front 1698

Roadway

Back 1698

Any public or private street, including bridges and rights of way.

Front 1699

Roadway

Back 1699

The volume of space that is located above the pavement surface through which motor vehicles travel.

Front 1700

Rocket

Back 1700

A device that ascends into the air without the use of aerodynamic lifting forces acting against gravity and that is propelled by one or more rocket motor(s).

Front 1701

Rocket

Back 1701

A device that ascends into the air without use of aerodynamic lifting forces acting against gravity and that is propelled by one or more rocket motors.

Front 1702

Rocket

Back 1702

A pyrotechnic device that moves by the ejection of matter produced by the internal combustion of propellants.

Front 1703

Rocket Motor

Back 1703

A device containing propellant that provides the force or thrust to cause a rocket to move.

Front 1704

Rocket Motor

Back 1704

A device containing propellant that provides the force or thrust to cause a rocket to move. [1122, 2002]

Front 1705

Rocket Motor

Back 1705

A device containing propellant that provides the force or thrust to cause a rocket to move. [1122, 2008]

Front 1706

Rocket Motor Plant

Back 1706

All land and buildings thereon used for the manufacture or processing of propellants and model rocket or high power motors, including storage buildings with or in connection with plant operation.

Front 1707

Rocket Propellant

Back 1707

The material(s) utilized in a rocket motor that produces thrust by the discharge of a working fluid generated by combustion, decomposition, change of state, or other operation of such material contained within the rocket motor.

Front 1708

Roll Coating

Back 1708

The process of applying or impregnating objects or materials with the coating liquid by bringing them into contact with a roller that is coated with a liquid.

Front 1709

Roller Guide/Metal Track
Side Edge Guide System

Back 1709

Continuous tracks with captive trolleys or rollers at each vertical edge of the curtain used to guide and restrain the fire safety curtain.

Front 1710

Rolling Steel Fire Door

Back 1710

A fire door assembly consisting of a curtain, bottom bar, barrel, brackets, hood, and an automatic-releasing device.

Front 1711

Roll-On/Roll-Off (RO/RO)

Back 1711

A form of cargo handling utilizing a vessel designed to load or unload cargo by using wheeled vehicles that roll on or roll off.

Front 1712

Roll-On/Roll-Off (Ro/Ro)

Back 1712

A form of cargo handling utilizing a vessel designed to load or unload cargo that rolls, such as automobiles or tractor trailer units.

Front 1713

Roll Paper Storage Height

Back 1713

The maximum vertical distance above the floor at which roll paper is normally stored.

Front 1714

Roman Candle

Back 1714

A chain-fused firework that propels a series of aerial shell, comet, or mine effects into the air from a single tube.

Front 1715

Roof

Back 1715

The rock overlying the subterranean space together with any structural reinforcement in the form of rock bolts, a surface layer of shotcrete, and/or other reinforcement.

Front 1716

Roof Assembly

Back 1716

The component(s) above the roof structural framing including the roof deck, vapor barrier, insulation, roof cover, coatings, toppings, or any combination thereof.

Front 1717

Roof Covering

Back 1717

The membrane, which may also be the roof assembly, that resists fire and provides weather protection to the building against water infiltration, wind, and impact.

Front 1718

Roof Height

Back 1718

The distance between the floor and the underside of the roof deck within the storage area.

Front 1719

Roofing Kettle

Back 1719

Any container in excess of a 56.8 L (15 gal) capacity used for preheating tar, asphalt, pitch, or similar substances for waterproofing.

Front 1720

Roof Jack

Back 1720

A factory-built assembly for conveying flue gases through a roof and that includes a flue gas passageway, an insulating means, flashing, and a cap.

Front 1721

Roof Ladder

Back 1721

A single ladder equipped with hooks at the top end of the ladder.

Front 1722

Roof Ladder

Back 1722

A single ladder equipped with hooks at the top end of the ladder. [1931:3.3]

Front 1723

Roof Structure

Back 1723

Structure above the roof of any part of a building enclosing a stairway, a tank, elevator machinery, service equipment, or part of a shaft extending above the roof, not housing living or recreational accommodations.

Front 1724

Rooftop Hangar

Back 1724

A structure on top of a building where helicopters are housed, stored, or maintained.

Front 1725

Rooftop Installation

Back 1725

A power system installation located on the roof of a building.

Front 1726

Rooftop Landing Pad

Back 1726

The entire load-bearing surface intended for the landing, takeoff, and parking of helicopters.

Front 1727

Rooftop Landing Pad

Back 1727

The entire load-bearing surface intended for the touchdown and lift off (TLOF) of helicopters.

Front 1728

Room

Back 1728

The space or area bounded by walls.

Front 1729

Room Heater

Back 1729

A heating appliance intended for installation in the space being heated and not intended for duct connection.

Front 1730

Room Heater

Back 1730

A heating appliance intended for installation in the space being heated and not intended for duct connection. [211, 2006]

Front 1731

Room Heater-Type Range

Back 1731

A range having a separate room heater section.

Front 1732

Room Large in Comparison with Size of Appliance

Back 1732

Rooms having a volume equal to at least 12 times the total volume of a furnace or air-conditioning appliance and at least 16 times the total volume of a boiler.

Front 1733

Room Large in Comparison with the Size of the Appliance

Back 1733

A room having a volume equal to at least 12 times the total volume of a furnace and at least 16 times the total volume of a boiler. The total volume of the furnace or boiler is determined from the exterior dimensions and is to include a fan compartment and burner vestibule, where used. Where the actual ceiling height of a room is greater than
8 ft (2.44 m), the volume of the room is to be figured on the basis of a ceiling height of 8 ft (2.44 m).

Front 1734

Rooms Large in Comparison with Size of Equipment

Back 1734

Rooms having a volume equal to at least 12 times the total volume of a furnace or air-conditioning appliance and at least 16 times the total volume of a boiler. The total volume of the appliance is determined from exterior dimensions and is to include fan compartments and burner vestibules, when used. When the actual ceiling height of a room is greater than 2.44 m (8 ft), the volume of a room is figured on the basis of a ceiling height of 2.44 m (8 ft).

Front 1735

Rope

Back 1735

A compact but flexible, torsionally balanced, continuous structure of fibers produced from strands that are twisted, plaited, or braided together and that serve primarily to support a load or transmit a force from the point of origin to the point of application.

Front 1736

Rope

Back 1736

A compact but flexible, torsionally balanced, continuous structure of fibers produced from strands that are twisted, plaited, or braided together, and that serve primarily to support a load or transmit a force from the point of origin to the point of application. (See also 3.3.158.1, Life Safety Rope.)

Front 1737

Rope-Based Mechanical
Advantage System

Back 1737

A rope rescue system component incorporating the reeving of rope through moving pulleys (or similar devices) to create mechanical advantage.

Front 1738

Rope Grab Device

Back 1738

An auxiliary equipment device used to grasp a life safety rope for the purpose of supporting loads; includes ascending devices.

Front 1739

Rope Rescue Equipment

Back 1739

Components used to build rope rescue systems including life safety rope, life safety harnesses, and auxiliary equipment.

Front 1740

Rope Rescue Equipment

Back 1740

Components used to build rope rescue systems including life safety rope, life safety harnesses, and auxiliary equipment. [1670, 2004]

Front 1741

Rope Rescue System

Back 1741

A system comprised of rope rescue equipment and an appropriate anchor system intended for use in the rescue of a subject.

Front 1742

Rope Rescue System

Back 1742

A system comprised of rope rescue equipment and an appropriate anchor system intended for use in the rescue of a subject.
[1670, 2004]

Front 1743

Rotary Atomizing Burner

Back 1743

An atomizing burner in which oil is atomized by applied centrifugal force, such as by a whirling cone or plate.

Front 1744

Rotary Blower Pump

Back 1744

A pump without a discharge valve that moves gas by the propelling action of one or more rapidly rotating members provided with lobes, blades, or vanes; also referred to as mechanical booster pump where used in series with a mechanical backing (fore) pump.

Front 1745

Rotary Gauge

Back 1745

A variable liquid level gauge consisting of a small positive shutoff vent valve located at the outside end of a tube that has a bent end inside the container and can be manually rotated to determine the liquid level in the container. It is equipped with a pointer and an outside dial to indicate the liquid level.

Front 1746

Rotary Gauge

Back 1746

A variable liquid level gauge consisting of a small positive shutoff vent valve located at the outside end of a tube that has a bent end inside the container and can be manually rotated to determine the liquid level in the container. It is equipped with a pointer and an outside dial to indicate the liquid level. [58, 2008]

Front 1747

Rotary Lobe Pump

Back 1747

A positive displacement pump characterized by the use of a rotor lobe to carry fluid between the lobe void and the pump casing from the inlet to the outlet.

Front 1748

Rotary-Phase Converter

Back 1748

A device that consists of a rotary transformer and capacitor panel(s) that permits the operation of 3-phase loads from a single-phase supply.

Front 1749

Rotary Vane Pump

Back 1749

A positive displacement pump characterized by the use of a single rotor with vanes that move with pump rotation to create a void and displace liquid.

Front 1750

Rotating Biological Contactor
(RBC)

Back 1750

A unit process for wastewater treatment that is composed of large, closely spaced plastic discs that are rotated about a horizontal shaft (usually a secondary biological treatment process).

Front 1751

Rotational Switch

Back 1751

A switch that usually is driven directly by the fan wheel or fan motor shaft and in which a switch contact closes when the speed of the fan shaft or drive motor reaches a certain predetermined rate.

Front 1752

Rotational-Type Control

Back 1752

A control that rotates in a plane perpendicular to the axis of the nozzle.

Front 1753

Rotation Gear

Back 1753

The main gear of an aerial device that is used for the rotation of the turntable.

Front 1754

Rotation Gear Reduction Box

Back 1754

The mechanism of an aerial device that transfers hydraulic or electric power to the rotation gear, creating the torque necessary to rotate the turntable.

Front 1755

Rotation Lock

Back 1755

A strong friction or other positive-locking device (e.g., holding valve)
that retains the turntable in any desired position.

Front 1756

Rough Buck

Back 1756

A subframe, usually channel shaped, attached to an existing wall to which the finished frame is attached.

Front 1757

Roughing Line

Back 1757

A line running from a mechanical pump to a vacuum chamber through which preliminary pumping is conducted to a vacuum range at which a diffusion pump or other high vacuum pump can operate.

Front 1758

Roughing Pump

Back 1758

The pump used to reduce the system pressure to the level at which a diffusion or other vacuum pump can operate.

Front 1759

Roughing Time

Back 1759

The time required to pump a given system from atmospheric pressure to a pressure at which a diffusion pump or other high vacuum pump can operate.

Front 1760

Routine Cleaning

Back 1760

The light cleaning of ensembles or ensemble elements performed by the end user without taking the elements out of service.

Front 1761

Row

Back 1761

A minimum yard storage unit comprised of adjoining cotton bales.

Front 1762

rpm

Back 1762

Revolutions per minute.

Front 1763

Rubber-Gasketed Fitting

Back 1763

A device for providing a leakproof connection between two pieces of pipe while allowing moderate movement of one pipe relative to the other.

Front 1764

Rubber Tires

Back 1764

Pneumatic tires for passenger automobiles, aircraft, light and heavy trucks, trailers, farm equipment, construction equipment
(off-the-road), and buses.

Front 1765

Rubber Tires

Back 1765

Pneumatic tires for passenger automobiles, aircraft, light and heavy trucks, trailers, farm equipment, construction equipment
(off-the-road), and buses. [13, 2007]

Front 1766

Rundown

Back 1766

The downward travel of water along a surface, caused by the momentum of the water or by gravity.

Front 1767

Rung Cap Casting

Back 1767

A casting that can be riveted to the outside of the base rail over the ends of each rung on an aerial ladder.

Front 1768

Rungs

Back 1768

The ladder cross pieces on which a person steps while ascending or descending.

Front 1769

Rungs

Back 1769

The ladder cross pieces on which a person steps while ascending or descending. [1931:3.3]

Front 1770

Runner

Back 1770

A person other than the required number of operators on duty at central, supervising, or runner stations (or otherwise in contact with these stations) available for prompt dispatching, when necessary, to the protected premises. (SIG-SSS)

Front 1771

Runner Service

Back 1771

The service provided by a runner at the protected premises, including restoration, resetting, and silencing of all equipment transmitting fire alarm or supervisory or trouble signals to an off-premises location. (SIG-SSS)

Front 1772

Runoff

Back 1772

Liquids that flow by gravity away from an aircraft accident and might include aviation fuel (ignited or not), water from fire-fighting streams, liquid cargo, or a combination of these liquids.

Front 1773

Runway

Back 1773

A defined rectangular area on a land airport prepared for the landing and taking off of aircraft along its length. Runways are normally numbered relative to their magnetic direction.

Front 1774

Rural

Back 1774

Those areas that are not unsettled wilderness or uninhabitable territory but are sparsely populated with densities below 500 persons per square mile.

Front 1775

Rural

Back 1775

Those areas that are not unsettled wilderness or uninhabitable territory but are sparsely populated with densities below 500 persons per square mile. [1142, 2007]

Front 1776

Rural Area

Back 1776

As defined by the U.S. Census Bureau, an area with fewer than 500 people per square mile.

Front 1777

Ss

Back 1777

The Maximum Considered Earthquake Ground Motion for 0.2 sec Spectral Response Acceleration (5% of Critical Damping), Site Class B for a specific site.

Front 1778

Sacrificial Anode System

Back 1778

Galvanic corrosion protection that employs zinc, aluminum, or magnesium anodes connected to the vessel’s hull that dissolve away over time.

Front 1779

Safe

Back 1779

An iron, steel, or equivalent container that has its door(s) equipped with a combination lock.

Front 1780

Safe and Stable Conditions

Back 1780

For fuel in the reactor vessel, head on and tensioned, safe and stable conditions are defined as the ability to maintain Keff <0.99, with a reactor coolant temperature at or below the requirements for hot shutdown for a boiling water reactor and hot standby for a pressurized water reactor. For all other configurations, safe and stable conditions are defined as maintaining Keff <0.99 and fuel coolant temperature below boiling.

Front 1781

Safe Area

Back 1781

An area where hot work such as cutting and welding, burning, or grinding is done routinely and frequently and has been identified, inspected, and designated as being safe for hot work operations.

Front 1782

Safe Destination

Back 1782

A protected place of adequate capacity.

Front 1783

Safeguard

Back 1783

A guard or protective device used as a safety measure to protect persons from a present or impending hazard.

Front 1784

Safeguard

Back 1784

As used in the Tree, to protect the exposed by using only those measures directly involving the exposed, without acting on the fire itself (see defend).

Front 1785

Safeguard Exposed

Back 1785

Act upon the exposed and the immediate surroundings of the exposed to
protect the exposed against fire impacts.

Front 1786

Safeguarding

Back 1786

Safeguards for personnel include the consistent administrative enforcement of safe work practices. Safeguards include training in safe work practices, cell line design, safety equipment, personal protective equipment, operating procedures, and work checklists.

Front 1787

Safeguarding

Back 1787

Those safety measures consisting of the use of specific means called safeguards to protect persons from hazards that cannot reasonably be removed or are not sufficiently limited by design.

Front 1788

Safe Haven

Back 1788

A secured area specifically designated and approved in writing by local, state, or federal governmental authorities for the parking of vehicles containing Class 1 materials (explosives).

Front 1789

Safe Location

Back 1789

A location remote or separated from the effects of a fire so that such effects no longer pose a threat.

Front 1790

Safe Location

Back 1790

A location remote or separated from the effects of a fire so that such effects no longer pose a threat. [101, 2003]

Front 1791

Safe Location

Back 1791

A location remote or separated from the effects of a fire so that such effects no longer pose a threat. [101, 2009]

Front 1792

Safely

Back 1792

To perform the assigned tasks without injury to self or others, to the environment, or to property.

Front 1793

Safely

Back 1793

To perform the assigned tasks without injury to self or others, to the environment, or to property. [472, 2002]

Front 1794

Safe Shutdown

Back 1794

A shutdown with the reactivity of the reactor kept subcritical as specified by the technical specifications for the unit.

Front 1795

Safe-Start Check

Back 1795

A checking circuit incorporated in a safety-control circuit that prevents light-off if the flame-sensing relay of the combustion safeguard is in the unsafe (flame-present) position due to component failure within the combustion safeguard or due to the presence of actual or simulated flame.

Front 1796

Safetied (Safety Knot)

Back 1796

A securement of loose rope end issuing from a completed knot, usually fashioned by tying the loose end around another section of rope to form a knot. The means by which the loose end is prevented from slipping through the primary knot.

Front 1797

Safety Alert

Back 1797

The action by which a manufacturer identifies a specific compliant product or a compliant product component, provides notice to users of the compliant product, and informs the marketplace and distributors of potential safety concerns regarding the product or component.

Front 1798

Safety Alert

Back 1798

The procedure by which a manufacturer notifies users, the marketplace, and distributors of potential safety concerns regarding a product.

Front 1799

Safety Blowout (Backfire
Preventer)

Back 1799

A protective device located in the discharge piping of large mixing machines, incorporating a bursting disc for excessive pressure release, means for stopping a flame front, and an electric switch or other release mechanism for actuating a built-in or separate safety shutoff.

Front 1800

Safety Can

Back 1800

A listed container, of not more than 18.9 L (5 gal) capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subjected to fire exposure.

Front 1801

Safety Can

Back 1801

A listed container, of not more than 20 L (5.3 gal) capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subjected to fire exposure.

Front 1802

Safety Can

Back 1802

A listed container, of not more than 20 L (5.3 gal) capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subjected to fire exposure. [30, 2003]

Front 1803

Safety Can

Back 1803

A listed container of not more than 5.3 gal (20 L) capacity having a spring-closing lid and spout cover, and so designed that it will safely relieve internal pressure when subjected to fire exposure.

Front 1804

Safety Can

Back 1804

A listed container of not more than 5.3 gal (20 L) capacity having a spring-closing lid and spout cover, and so designed that it will safely relieve internal pressure when subjected to fire exposure. [30, 2008]

Front 1805

Safety Can

Back 1805

An approved container, of not more than 18.9 L (5 gal) capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subjected to fire exposure. (LAB)

Front 1806

Safety Cap

Back 1806

A tube, closed at one end, that is placed over the end of the fuse until the intended ignition to protect it from damage and accidental ignition.

Front 1807

Safety Control

Back 1807

Automatic controls (including relays, switches, and other auxiliary equipment used in conjunction to form a safety control system) that are intended to prevent unsafe operation of the controlled equipment.

Front 1808

Safety-Critical

Back 1808

The failure of a device, component, system, or mechanism, which results in a situation that is immediately dangerous to life, health, or property.

Front 1809

Safety Device

Back 1809

An instrument, a control, or other equipment that acts, or initiates action, to cause the furnace to revert to a safe condition in the event of equipment failure or other hazardous event.

Front 1810

Safety Distance

Back 1810

The distance between the pinch point or point-of-operation and the presence-sensing safety device (PSSD) sensing field that ensures that the operator cannot reach the danger point before the machine comes to a full stop.

Front 1811

Safety Division

Back 1811

The designation applied to a given system or set of nuclear safety-related components that enable the establishment and maintenance of physical, electrical, and functional independence from other redundant systems or sets of components.

Front 1812

Safety Factor

Back 1812

A factor applied to a predicted value to ensure that a sufficient safety margin is maintained.

Front 1813

Safety Factor

Back 1813

A factor applied to a predicted value to ensure that a sufficient safety margin is maintained. [101, 2003]

Front 1814

Safety Factor

Back 1814

A factor applied to a predicted value to ensure that a sufficient safety margin is maintained. [101, 2009]

Front 1815

Safety Factor

Back 1815

The ratio of the calculated failure pressure (or actual failure pressure, if known) to the MAWP.

Front 1816

Safety Factor (SF)

Back 1816

A multiplier of the agent flame extinguishing or inerting concentration to determine the agent minimum design concentration.

Front 1817

Safety Function (Safety
Measure)

Back 1817

A means that eliminates or reduces a hazard.

Front 1818

Safety Interlock

Back 1818

A device required to ensure safe start-up and safe operation and to cause safe equipment shutdown.

Front 1819

Safety Margin

Back 1819

The difference between a predicted value and the actual value where a fault condition is expected.

Front 1820

Safety Margin

Back 1820

The difference between a predicted value and the actual value where a fault condition is expected. [101, 2003]

Front 1821

Safety Margin

Back 1821

The difference between a predicted value and the actual value where a fault condition is expected. [101, 2009]

Front 1822

Safety Officer

Back 1822

A generic title given to a member within a fire department or emergency service organization who performs the functions of a health and safety officer, an incident safety officer, or who serves as an assistant to a person in either of those positions.

Front 1823

Safety Officer

Back 1823

A member of the command staff responsible for monitoring and assessing safety hazards and unsafe situations, and for developing measures for ensuring personnel safety.

Front 1824

Safety Officer

Back 1824

A member of the command staff responsible for monitoring and assessing safety hazards or unsafe situations and for developing measures for ensuring personnel safety.

Front 1825

Safety Officer

Back 1825

An individual appointed by the AHJ as qualified to maintain a safe working environment.

Front 1826

Safety Officer

Back 1826

An individual appointed by the authority having jurisdiction as qualified to maintain a safe working environment at all live fire training evolutions.

Front 1827

Safety Relay

Back 1827

A relay listed for safety service.

Front 1828

Safety Shutdown

Back 1828

The action of shutting off all fuel and ignition energy to an appliance by means of a safety control or controls, such that restart of the appliance cannot be accomplished without some form of manual reset that requires local, manual intervention.

Front 1829

Safety Shutdown, Excessive
Steam Pressure Switch

Back 1829

A pressure-actuated device that is arranged to effect a safety shutdown of the burner when the steam pressure exceeds a preset pressure.

Front 1830

Safety Shutdown, Excessive
Water Temperature Switch

Back 1830

A temperature-actuated device that is arranged to effect a safety shutdown of the burner when the water temperature exceeds a preset temperature.

Front 1831

Safety Shutdown, High Gas
Pressure Switch

Back 1831

A pressure-actuated device that is arranged to effect a safety shutdown or to prevent starting when the gas pressure exceeds the preset value.

Front 1832

Safety Shutdown (Lockout)

Back 1832

The safe shutdown of the flame effect in the event of the actuation of any flame effect primary safety control or limit switch.

Front 1833

Safety Shutdown, Low Gas
Pressure Switch

Back 1833

A pressure-actuated device that is arranged to effect a safety shutdown or to prevent starting when the gas pressure falls below the preset value.

Front 1834

Safety Shutdown, Low Oil
Pressure Switch

Back 1834

A pressure-actuated device that is arranged to effect a safety shutdown or to prevent starting when the oil pressure falls below the preset value.

Front 1835

Safety Shutdown, Low Water
Cutout Auxiliary Switch

Back 1835

On single burner boilers, a device that is arranged to effect a safety shutdown of the burner when the water level in the boiler falls to a predetermined low level.

Front 1836

Safety Shutdown, Low Water
Cutout Switch

Back 1836

A device that is arranged to effect a safety shutdown or master fuel trip when the water level in the boiler or HRSG falls to a predetermined low level.

Front 1837

Safety Shutdown (Single
Burner Boiler)

Back 1837

Stopping burner operation by shutting off all fuel and ignition energy to the furnace.

Front 1838

Safety Shutoff Device

Back 1838

A device that will shut off the gas supply to the controlled burner(s) in the event the source of ignition fails. This device can interrupt the
flow of gas to main burner(s) only or to pilot(s) and main burner(s)
under its supervision.

Front 1839

Safety Shutoff Valve

Back 1839

A fast-closing valve that automatically and completely shuts off the fuel supply in response to a normal or safety shutdown.

Front 1840

Safety Shutoff Valve

Back 1840

A normally closed valve installed in the piping that closes automatically to shut off the fuel, atmosphere gas, or oxygen in the event of abnormal conditions or during shutdown.

Front 1841

Safety Shutoff Valve (Safety
Trip Valve)

Back 1841

A fast-closing valve that automatically shuts off the gaseous or liquid fuel supply in response to a normal, emergency, or safety shutdown signal.

Front 1842

Safety Stop Mechanism

Back 1842

A device that is located on the aerial device and prevents raising the elevating platform booms or sections beyond safe operating horizontal or vertical angles.

Front 1843

Safety Valve

Back 1843

An automatic oil control valve of the “on” and “off” type (without any bypass to the burner) that is actuated by a safety control or by an emergency device.

Front 1844

Safe Working Procedure

Back 1844

A method of working that reduces risk.

Front 1845

Safe Zone

Back 1845

In a trench, the area that projects 0.61 m (2 ft) in all directions around an installed cross brace or wale that is a component of an existing approved shoring system.

Front 1846

Sag

Back 1846

A decrease to between 10 percent and 90 percent of the normal voltage at the power frequency for durations of 0.5 cycle to 1 minute. (If the voltage drops below 10 percent of the normal voltage, then this is classified as an interruption.) It is further classified into three categories: (1) Instantaneous — 0.5 cycle to 30 cycles; (2) Momentary
— 30 cycles to 3 seconds; and (3) Temporary — 3 seconds to 1 minute.

Front 1847

Sagging

Back 1847

Straining of the ship that tends to make the middle portion lower than the bow and stern.

Front 1848

Sail Area

Back 1848

The area of the ship that is above the waterline and that is subject to the effects of wind, particularly a crosswind on the broad side of a ship.

Front 1849

Sales Display Area

Back 1849

The area of a mercantile occupancy that is open to the public for the purpose of viewing and purchasing goods, wares, and merchandise. Individuals are free to circulate among the items, which are typically displayed on shelves, racks, or on the floor.

Front 1850

Sales Display Area

Back 1850

The area of a mercantile occupancy that is open to the public for the purpose of viewing and purchasing goods, wares, and merchandise. Individuals are free to circulate among the items, which are typically displayed on shelves, racks, or on the floor. [30B, 2007]

Front 1851

Sally Port (Security Vestibule)

Back 1851

A compartment provided with two or more doors where the intended purpose is to prevent continuous and unobstructed passage by allowing the release of only one door at a time.

Front 1852

Sally Port (Security Vestibule)

Back 1852

A compartment provided with two or more doors where the intended purpose is to prevent continuous and unobstructed passage by allowing the release of only one door at a time. [101:3.3]

Front 1853

Salute

Back 1853

A display firework that is designed to produce a loud report.

Front 1854

Salute

Back 1854

Fireworks designed to produce an explosive sound as their primary effect.

Front 1855

Salute Powder

Back 1855

An explosive composition that makes a loud report when ignited and constitutes the sole pyrotechnic mixture in a salute.

Front 1856

Salute Powder

Back 1856

A pyrotechnic composition that makes an explosive sound when ignited and constitutes the sole pyrotechnic effect of a salute.

Front 1857

Salvage

Back 1857

A fire-fighting procedure for protecting property from further loss following an aircraft accident or fire.

Front 1858

Salvage

Back 1858

The restoration of a distressed vessel to normal condition, usually the removal of water from inside the hull.

Front 1859

Salvage Vehicle

Back 1859

A vehicle that is dismantled for parts or awaiting destruction.

Front 1860

Sample

Back 1860

An amount of the material, product, or assembly to be tested that is representative of the item as a whole.

Front 1861

Sample

Back 1861

An amount of the material, product, or assembly to be tested that is representative of the item as a whole. [270, 2002]

Front 1862

Sample

Back 1862

Material being tested.

Front 1863

Sample

Back 1863

(1) The ensemble, element, component, or composite that is conditioned for testing. (2) Ensembles, elements, items, or components that are randomly selected from the manufacturer’s production line, from the manufacturer’s inventory, or from the open market.

Front 1864

Sample

Back 1864

(1) The ensemble, element, component, or composite that is conditioned for testing. (See also 3.3.19, Specimen.) (2) Ensembles, elements, items, or components that are randomly selected from the manufacturer’s production line, from the manufacturer’s inventory, or from the open market.

Front 1865

Sample

Back 1865

(1) The ensemble, element, item, or component that is conditioned for testing. (2) Ensembles, elements, items, or components that are randomly selected from the manufacturer’s production line, from the manufacturer’s inventory, or from the open market.

Front 1866

Sample

Back 1866

The element, item, component, or composite that is conditioned for subsequent testing. An amount of the material, product or assembly to be tested that is representative of the item as a whole. (See also
3.3.64, Specimen.)

Front 1867

Sample

Back 1867

The element, item, component, or composite that is conditioned for subsequent testing. An amount of the material, product, or assembly to be tested that is representative of the item as a whole (see also Specimen).

Front 1868

Sample

Back 1868

The ensemble, element, item, component, or composite that is conditioned for testing. (See also 3.3.103, Specimen.)

Front 1869

Sample

Back 1869

The ensemble, element, item, component, or composite that is conditioned for testing. (See also 3.3.75, Specimen.)

Front 1870

Sanctioning Body

Back 1870

The individual or organization responsible for the rules and conduct of the competition.

Front 1871

Sanitary Disposal Station

Back 1871

A facility provided for emptying of the waste-holding tanks.

Front 1872

Sanitary Sewer

Back 1872

A sewer that carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions together with minor quantities of storm water, surface water, and groundwater that are not admitted intentionally.

Front 1873

Sanitize

Back 1873

The removal of dirt and the inhibiting of the action of agents that cause infection or disease.

Front 1874

SAR

Back 1874

Abbreviation for supplied air respirator. [See 3.3.43, Supplied Air
Respirator (SAR).]

Front 1875

SAR

Back 1875

An abbreviation for supplied air respirator. [See also 3.3.13, Supplied
Air Respirator (SAR).]

Front 1876

SAR

Back 1876

An abbreviation for supplied air respirator. [See also 3.3.16, Supplied
Air Respirator (SAR).]

Front 1877

Sash

Back 1877

A movable panel or panels set in the hood entrance. (See C.5.1.)

Front 1878

Satellite

Back 1878

A structure that can be adjacent to but separated from the airport terminal building, accessible aboveground or through subway passages, and used to provide flight service operations, such as passenger check-in, waiting rooms, food service, enplaning or deplaning, etc.

Front 1879

Satellite

Back 1879

A structure that can be adjacent to but separated from the airport terminal building, accessible aboveground or through subway passages, and used to provide flight service operations, such as passenger check-in, waiting rooms, food service, enplaning or deplaning, etc. [415, 2008]

Front 1880

Saturated LNG Gas

Back 1880

Preheated LNG held under pressure and released to atmosphere as a gas.

Front 1881

Saxon

Back 1881

A pyrotechnic device consisting of a tube that rotates around a pivot point to produce a circular shower of sparks.

Front 1882

Scanner

Back 1882

Equipment located at the telephone company wire center that monitors each local leg and relays status changes to the alarm center. Processors and associated equipment might also be included.
(SIG-SSS)

Front 1883

Scavenged Gas

Back 1883

A residual process gas that is collected for treatment or release at a location remote from the site of use.

Front 1884

Scavenging

Back 1884

An alternate term for WAGD often applied in Level 3. (PIP)

Front 1885

Scavenging

Back 1885

The procedure by which liquid fuel left in a burner or igniter after a shutdown is cleared by admitting steam or air through the burner passages, typically through a dedicated scavenging medium valve.

Front 1886

SCBA

Back 1886

Abbreviation for self-contained breathing apparatus. [See 3.3.40, Self-Contained Breathing Apparatus (SCBA).]

Front 1887

SCBA

Back 1887

Acronym for Self-Contained Breathing Apparatus. [1982, 1998]

Front 1888

SCBA

Back 1888

An abbreviation for self-contained breathing apparatus. [See also
3.3.12, Self-Contained Breathing Apparatus (SCBA).]

Front 1889

SCBA

Back 1889

An abbreviation for self-contained breathing apparatus. [See also
3.3.14, Self-Contained Breathing Apparatus (SCBA).]

Front 1890

SCBA Fill Hose

Back 1890

Flexible hose plumbed to connect SCBA cylinders to the compressed air supply for filling purposes.

Front 1891

SCBA Fill Station

Back 1891

A containment enclosure for refilling self-contained breathing cylinders to guard personnel from fragments due to accidental cylinder rupture.

Front 1892

SCBA/SAR

Back 1892

Abbreviation for combination open-circuit SCBA and supplied air respirator. [See 3.3.10, Combination SCBA/SAR; 3.3.40, Self-Contained Breathing Apparatus (SCBA); and 3.3.43, Supplied Air Respirator (SAR).]

Front 1893

Scenario

Back 1893

A sequence or synopsis of actual or imagined events used in the field or classroom to provide information necessary to meet student competencies; can be based upon threat assessment.

Front 1894

Scenario Cluster

Back 1894

A group of scenarios having some, but not all, defining characteristics in common.

Front 1895

Scene

Back 1895

The specific physical location of the incident within the site. The area or areas (structure, vehicle, boat, piece of equipment, etc.) designated as relevant to the investigation of the incident because it may contain physical damage or debris, evidence, victims, or incident-related hazards. This is the area to be processed during the scene examination.

Front 1896

Scene Security

Back 1896

The means used to prevent or restrict entry to the scene of a rescue incident, either during or following the emergency.

Front 1897

Scf

Back 1897

One cubic foot of gas at 70°F (21°C) and 14.7 psia (an absolute pressure of 101 kPa).

Front 1898

SCFM

Back 1898

Standard cubic feet per minute. [1901, 2003]

Front 1899

SCFM

Back 1899

Standard cubic feet per minute. (PIP)

Front 1900

scfm (standard cubic feet per minute)

Back 1900

An expression of airflow rate in which the airflow rate is corrected to standard temperature and pressure.

Front 1901

Scf (Standard Cubic Foot)

Back 1901

One cubic foot of gas at 70°F (21°C) and 14.7 psia (an absolute pressure of 101 kPa). [55, 2005]

Front 1902

Scientific Method

Back 1902

The systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of a hypothesis.

Front 1903

Scope

Back 1903

This section shall establish a uniform system of defining and classifying flammable and combustible liquids for the purpose of proper application of this standard. This section shall apply to any liquid within the scope of and subject to the requirements of this standard. [30:1.7.1] This section shall not apply to mists, sprays, or foams. [30:1.7.1.1] This section shall not apply to liquids that do not have flash points but are capable of burning under certain conditions, such as certain halogenated hydrocarbons and certain mixtures of flammable or combustible liquids and halogenated hydrocarbons. [30:1.7.1.2]

Front 1904

Scorch

Back 1904

Discoloring (browning or blackening) of a material, a characteristic of the overheat condition.

Front 1905

Scrap Tire

Back 1905

A tire that can no longer be used for its original purpose due to wear or damage.

Front 1906

Screen Barricade

Back 1906

Any barrier that contains the embers and debris from a fire or deflagration in a process building, thus preventing propagation of fire to other buildings or areas.

Front 1907

Screen Barricade

Back 1907

Any barrier that contains the embers and debris from a fire or deflagration in a process building, thus preventing propagation of fire to other buildings or areas. [1125, 2001]

Front 1908

Screening Chamber

Back 1908

A chamber or enlargement of a sewer in which large suspended or floating solids or material is removed from raw wastewater by a screen.

Front 1909

Screens

Back 1909

A fully framed assembly of grooved-wood dowels or meshed screening that is intended to form a protective barrier over windows or on
doors, and on which fine wire lacing is installed in parallel runs of opposite polarity at intervals not exceeding 102 mm (4 in.).

Front 1910

Screens

Back 1910

An array of wires usually interwoven every 6 in. either horizontally or vertically on a screen or alarm screening that protects areas or openings, such as skylights and crawl spaces.

Front 1911

Screw Jack

Back 1911

Shoring system component made of sections of threaded bar stock that are incorporated with lengths of pipe or wood.

Front 1912

Screw Thread Coupling or
Adapter

Back 1912

A coupling or adapter in which the mating is achieved with the use of threads.

Front 1913

Scrubbing

Back 1913

A process of agitating foam solution and air in a confined space such as a hose, pipe, or mixing chamber to produce bubbles.

Front 1914

SCUBA

Back 1914

Self-contained underwater breathing apparatus.

Front 1915

Scum or Skimmings

Back 1915

Grease, solids, liquids, and other floatable material removed from settling tanks.

Front 1916

Scupper

Back 1916

An opening in the side of a vessel through which rain, sea, or fire-fighting water is discharged.

Front 1917

Sealable Equipment

Back 1917

Equipment enclosed in a case or cabinet that is provided with a means of sealing or locking so that live parts cannot be made accessible without opening the enclosure. The equipment may or may not be operable without opening the enclosure.

Front 1918

Seal Air

Back 1918

Air or inert gas supplied to any device at sufficient pressure for the specific purpose of minimizing contamination.

Front 1919

Seal Air Fan

Back 1919

A fan used to supply sealing air.

Front 1920

Sealed Cell or Battery

Back 1920

A sealed cell or battery is one that has no provision for the addition of water or electrolyte or for external measurement of electrolyte
specific gravity. The individual cells shall be permitted to contain a venting arrangement as described in 480.10(B).

Front 1921

Sealed Flight Cylinder

Back 1921

A flight cylinder used in a hybrid rocket motor system into which a pressurized liquid or gas can be loaded prior to launch and stored for an indefinite period.

Front 1922

Sealed Flight Cylinder

Back 1922

A flight cylinder used in a hybrid rocket motor system into which the pressurized liquid or gas can be loaded prior to launch and stored for an indefinite period.

Front 1923

Sea Level Equivalent of Agent

Back 1923

The agent concentration (volume percent) at sea level for which the partial pressure of agent matches the ambient partial pressure of agent at a given altitude.

Front 1924

Sea Level Equivalent of
Oxygen

Back 1924

The oxygen concentration (volume percent) at sea level for which the partial pressure of oxygen matches the ambient partial pressure of oxygen at a given altitude.

Front 1925

Seam

Back 1925

Any permanent attachment of two or more chemical-protective clothing materials, excluding external fittings, gaskets, and suit closure assemblies, in a line formed by joining the separate material pieces.

Front 1926

Seam

Back 1926

Any permanent attachment of two or more materials in a line formed by joining the separate material pieces.

Front 1927

Seam

Back 1927

Any permanent attachment of two or more protective clothing materials, excluding external fittings, gaskets, and garment closure assemblies, in a line formed by joining the separate material pieces.

Front 1928

Seam

Back 1928

Any permanent attachment of two or more protective garment fabrics in a line formed by joining the separate material pieces.

Front 1929

Seam Assembly

Back 1929

The structure obtained when fabrics are joined by means of a seam.

Front 1930

Seam Assembly

Back 1930

The structure obtained when materials are joined by means of a seam.

Front 1931

Seams (Major)

Back 1931

Those seam assemblies where rupture exposes the wearer to immediate danger.

Front 1932

Seams (Minor)

Back 1932

Those seam assembly constructions where rupture does not expose the wearer to immediate danger.

Front 1933

Search Functions

Back 1933

General area search, reconnaissance, victim location identification, and hazard identification or flagging.

Front 1934

Search Marking System

Back 1934

A separate and distinct marking system used to identify information related to the location of a victim(s).

Front 1935

Search Operations

Back 1935

Any land-based operations involving the search for victims or body recovery.

Front 1936

Search Parameters

Back 1936

The defined search area and scope.

Front 1937

Search Team

Back 1937

As related to caves, a specific combination of resources with a leader, personnel, and common equipment assembled for the purpose of searching an area in the cave identified by the incident command.

Front 1938

Seasonal Needs

Back 1938

The periodic operating contingencies of a particular geographic region that are established to overcome a specific set of circumstances (e.g., crop harvest, rainy season).

Front 1939

Seasonal Storage

Back 1939

Storage of boats for extended periods when not in use (e.g., winter storage).

Front 1940

Seat Belt

Back 1940

A two-point lap belt, a three-point lap/shoulder belt, or a four-point lap/shoulder harness for vehicle occupants designed to limit their movement in the event of an accident, rapid acceleration, or rapid deceleration by securing individuals safely to a vehicle in a seated position.

Front 1941

Seat Belt

Back 1941

A two-point lap belt, a three-point lap/shoulder belt, or a four-point lap/shoulder harness for vehicle occupants designed to limit their movement in the event of an accident, rapid acceleration, or rapid deceleration by securing individuals safely to a vehicle in a seated position. (See also 3.3.95, Vehicle Safety Harness.)

Front 1942

Seat Circumference

Back 1942

Lower torso garment measurement from 25 mm (1 in.) above bottom of fly curve from folded edge to folded edge, multiplied by 2 to obtain circumference.

Front 1943

Seated Explosion

Back 1943

An explosion with a highly localized point of origin, such as a crater.

Front 1944

Seat of Explosion

Back 1944

A craterlike indentation created at the point of origin of an explosion.

Front 1945

Seaworthy

Back 1945

A vessel’s capability to perform its mission in adverse sea or weather conditions.

Front 1946

Secondary Access

Back 1946

Openings created by rescuers that provide a pathway to trapped and/or injured victims.

Front 1947

Secondary Air

Back 1947

Air for combustion supplied to the burners or fuel bed in addition to the primary air.

Front 1948

Secondary Air

Back 1948

All the combustion air that is intentionally allowed to enter the combustion chamber in excess of primary air.

Front 1949

Secondary Air (in a Bubbling
Fluidized Bed)

Back 1949

That portion of the air introduced through the air distributor.

Front 1950

Secondary Air (in a Circulating
Fluidized Bed)

Back 1950

That air that enters the combustor at levels above the air distributor.

Front 1951

Secondary Air (in a Single or
Multiple Burner Boiler)

Back 1951

That portion of the air entering through the air registers.

Front 1952

Secondary Air-Material
Separator

Back 1952

A collector that separates the residual dust or product remaining in the airstream after the airstream has been processed by the primary air-material separator.

Front 1953

Secondary Barrier

Back 1953

The liquid-resisting outer element of a cargo containment system designed to afford temporary containment of any envisaged leakage of liquid cargo through the primary barrier and to prevent the lowering of the temperature of the ship’s structure to an unsafe level.

Front 1954

Secondary Battery

Back 1954

Two or more rechargeable cells electrically connected and used as a source of energy.

Front 1955

Secondary Cell

Back 1955

A rechargeable assembly of electrodes and electrolytes that constitutes the basic unit of a battery.

Front 1956

Secondary Collapse

Back 1956

A subsequent collapse in a building or excavation.

Front 1957

Secondary Containment

Back 1957

Any device or structure that prevents environmental contamination when the primary container or its appurtenances fail. Secondary containment shall be designed and constructed to intercept and contain pesticide
spills and leaks and to prevent runoff or leaching of pesticides into the environment. Examples of secondary containment include dikes, curbing, and double-walled tanks.

Front 1958

Secondary Containment Tank

Back 1958

A tank that has an inner and outer wall with an interstitial space (annulus) between the walls and that has a means for monitoring the interstitial space for a leak.

Front 1959

Secondary Containment Tank

Back 1959

A tank that has an inner and outer wall with an interstitial space (annulus) between the walls and that has a means for monitoring the interstitial space for a leak. [30, 2008]

Front 1960

Secondary Dispatch Phone “Off-Hook” Answered (if appropriate)

Back 1960

The time that the second PSAP or second dispatcher answers the phone, begins the interview, collects caller data, begins pre-arrival instructions.

Front 1961

Secondary Dispatch Phone
Rings (if appropriate)

Back 1961

The time the telephone begins to ring in the second public safety answering point (or the call screener). Many systems will not use secondary dispatch centers.

Front 1962

Secondary Enclosure

Back 1962

An enclosure or guard constructed around but separate from a dipping or coating process whose purpose is other than for fire protection, confinement of a possible fire, or confinement of vapor or mists.

Front 1963

Secondary Explosion

Back 1963

Any subsequent explosion resulting from an initial explosion.

Front 1964

Secondary Line

Back 1964

A back-up hose line and crew that accompanies the primary attack line and crew into the hot zone at an incident.

Front 1965

Secondary Storage Facility

Back 1965

Warehouse facilities established to house books and other collections.

Front 1966

Secondary Supply

Back 1966

Where provided, that portion of the source equipment that automatically supplies the system when the primary supply becomes exhausted. (PIP)

Front 1967

Secondary Trunk Facility

Back 1967

That part of a transmission channel connecting two or more, but fewer than all, leg facilities to a primary trunk facility. (SIG-SSS)

Front 1968

Secondary Vent

Back 1968

Any vent other than the primary vent or those serving toilet or holding tanks.

Front 1969

Secondary Wastewater
Treatment

Back 1969

Wastewater treatment unit processes usually consisting of primary treatment and biological oxidation using activated sludge or trickling filtration followed by clarification.

Front 1970

Second-Stage Regulator

Back 1970

A pressure regulator for LP-Gas vapor service designed to reduce first-stage regulator outlet pressure to 14 in. w.c. (4.0 kPag) or less.

Front 1971

Section

Back 1971

The organizational level having responsibility for a major functional area of incident management, such as operations, planning, logistics, finance/administration, and intelligence (if established).

Front 1972

Section

Back 1972

The organization level having functional responsibility for primary segments of incident operations such as operations, planning, logistics, and finance/administration.

Front 1973

Sectional Drain

Back 1973

A drain located beyond a sectional control valve that drains only a portion of the system (e.g., a drain located beyond a floor control valve on a multi-story building).

Front 1974

Section Chief

Back 1974

Title that refers to a member of the general staff (Planning Section Chief, Operations Section Chief, Finance/Administration Section Chief, Logistics Section Chief).

Front 1975

Section Sign

Back 1975

A sign or outline lighting system, shipped as subassemblies, that requires field-installed wiring between the subassemblies to complete the overall sign. The subassemblies are either physically joined to form a single sign unit or are installed as separate remote parts of an overall sign.

Front 1976

Secured

Back 1976

Closed in a manner to prevent opening or operation.

Front 1977

Security

Back 1977

The branch of an organization, public or private, charged with the responsibility of safeguarding the assets (people, physical plant, properties, and products and reputation) of an organization.

Front 1978

Security Personnel

Back 1978

Employees or contract service personnel charged with duties to aid in the protection at a protected premises.

Front 1979

Security Personnel

Back 1979

Personnel, with or without arrest authority, assigned to control crowds and traffic at a motorsports venue and whose duties might also including checking of credentials and identification and deterring theft.

Front 1980

Security Space

Back 1980

A space dedicated to an activity that requires the limitation or control of access by persons to certain given times, such as counting rooms, vaults, monitor stations, or areas of physical restraint.

Front 1981

Security Systems

Back 1981

Several items of equipment, processes, design features, and actions or behaviors intended to discover, report, deter, or delay criminal acts from being perpetrated against persons or property.

Front 1982

Security Vestibule

Back 1982

A compartment provided with two or more doors where the intended purpose is to prevent continuous and unobstructed passage by allowing the release of only one door at a time.

Front 1983

Sedimentation

Back 1983

The unit process of subsidence of suspended matter carried by water, wastewater, or other liquids by gravity.

Front 1984

Segregated Storage

Back 1984

Storage in the same room or inside area but physically separated by distance from incompatible materials.

Front 1985

Segregated Storage

Back 1985

Storage located in the same room or inside area that is physically separated by distance from incompatible materials.

Front 1986

Segregation

Back 1986

The interposing of a fire- and explosion-resistant barrier between the combustible particulate solid process and other operations.

Front 1987

Seismic Design Category

Back 1987

A classification assigned to a structure based on its Occupancy Category and the severity of the design earthquake ground motion at the site as defined in ASCE/SEI 7, Section 11.4. [ASCE/SEI 7:11.2]

Front 1988

Seismic Forces

Back 1988

The assumed forces prescribed herein, related to the response of the structure to earthquake motions, to be used in the design of the structure and its components. [ASCE/SEI 7:11.2]

Front 1989

Selected Receptacles

Back 1989

A minimal number of receptacles selected by the governing body of a facility as necessary to provide essential patient care and facility services during loss of normal power. (ELS)

Front 1990

Selected Receptacles

Back 1990

A minimum number of electrical receptacles to accommodate appliances ordinarily required for local tasks or likely to be used in patient care emergencies.

Front 1991

Selection

Back 1991

The process of determining what protective clothing and equipment (PCE) are necessary for protection of emergency services response personnel from an anticipated specific hazard or other activity, the procurement of the appropriate PCE, and the choice of the proper PCE for a specific hazard or activity at an emergency incident.

Front 1992

Selection

Back 1992

The process of determining what protective clothing and equipment (PCE) is necessary for protection of fire and emergency services response personnel from an anticipated specific hazard or other activity, the procurement of the appropriate PCE, and the choice of the proper PCE for a specific hazard or activity at an emergency incident.

Front 1993

Selective Catalytic Reduction
(SCR)

Back 1993

A method of reducing NOx in flue gas.

Front 1994

Selector Valve

Back 1994

A device used to direct dry chemical to the hazard being protected.

Front 1995

Self-Checking Flame Detector

Back 1995

A flame detector that automatically, and at regular intervals, tests the entire sensing and signal processing system of the flame detector.

Front 1996

Self-Closing

Back 1996

Equipped with an approved device that ensures closing after opening.

Front 1997

Self-Closing

Back 1997

Equipped with an approved device that ensures closing after opening. [101, 2006]

Front 1998

Self-Closing

Back 1998

Equipped with an approved device that ensures closing after opening. [101, 2009]

Front 1999

Self-Closing Door

Back 1999

Doors that, when opened and released, returns to the closed position. [80:1.4]

Front 2000

Self-Closing Door

Back 2000

Doors that, when opened and released, return to the closed position. [80:1-4]

Front 2001

Self-Closing Doors

Back 2001

Doors that, when opened and released, return to the closed position.

Front 2002

Self-Contained Breathing
Apparatus

Back 2002

For the purpose of handling releases of flammable and combustible liquids and gases, a portable respiratory device that (1) is designed to protect the wearer from an oxygen-deficient or other hazardous atmosphere, (2) supplies a respirable atmosphere that is either carried on, in, or generated by the apparatus, and (3) is independent of the ambient environment.

Front 2003

Self-Contained Breathing
Apparatus (SCBA)

Back 2003

An atmosphere-supplying respirator that supplies a respirable air atmosphere to the user from a breathing air source that is independent of the ambient environment and designed to be carried by the user.

Front 2004

Self-Contained Breathing
Apparatus (SCBA)

Back 2004

An atmosphere-supplying respirator that supplies a respirable air atmosphere to the user from a breathing air source that is independent of the ambient environment and designed to be carried by the user. [1981, 2007]

Front 2005

Self-Contained Breathing
Apparatus (SCBA)

Back 2005

An atmosphere-supplying respirator that supplies a respirable atmosphere to the user from a breathing air source that is independent of the ambient environment and designed to be carried by the user. [See also 3.3.1, Atmosphere-Supplying Respirator; 3.3.3, Combination SCBA/SAR; and 3.3.16, Supplied Air Respirator (SAR).]

Front 2006

Self-Contained Breathing
Apparatus (SCBA)

Back 2006

A respirator worn by the user that supplies a respirable atmosphere that is either carried in or generated by the apparatus and is independent of the ambient environment.

Front 2007

Self-Contained Breathing
Apparatus (SCBA)

Back 2007

A respirator worn by the user that supplies a respirable atmosphere, that is either carried in or generated by the apparatus, and that is independent of the ambient environment.

Front 2008

Self-Contained Spa or Hot
Tub

Back 2008

Factory-fabricated unit consisting of a spa or hot tub vessel with all water-circulating, heating, and control equipment integral to the unit. Equipment can include pumps, air blowers, heaters, lights, controls, sanitizer generators, and so forth.

Front 2009

Self-Contained Therapeutic Tubs or Hydrotherapeutic Tanks

Back 2009

A factory-fabricated unit consisting of a therapeutic tub or hydrotherapeutic tank with all water-circulating, heating, and control equipment integral to the unit. Equipment may include pumps, air blowers, heaters, light controls, sanitizer generators, and so forth.

Front 2010

Self-Decomposing Mixtures

Back 2010

Materials or mixtures capable of propagating a flame in the absence of oxidant.

Front 2011

Self-Destructive Action

Back 2011

Interaction of materials in a manner that leads to deterioration.

Front 2012

Self-Educting Nozzle

Back 2012

A device that incorporates a venturi to draw foam concentrate through a short length of pipe and/or flexible tubing connected to the foam supply.

Front 2013

Self-Expelling Fire
Extinguisher

Back 2013

A fire extinguisher in which the agents have sufficient vapor pressure at normal operating temperatures to expel themselves.

Front 2014

Self-Extinguishing

Back 2014

A characteristic of a material such that, once the source of ignition is removed, the flame is quickly extinguished without the fuel or oxidizer being exhausted. [99, 2005 (HYP)]

Front 2015

Self-Extinguishing

Back 2015

A characteristic of a material such that, once the source of ignition is removed, the flame is quickly extinguished without the fuel or oxidizer being exhausted. (HYP)

Front 2016

Self-Heating

Back 2016

The result of exothermic reactions, occurring spontaneously in some materials under certain conditions, whereby heat is generated at a rate sufficient to raise the temperature of the material.

Front 2017

Self-Igniting Rock

Back 2017

Rock containing minerals prone to self-heating and ignition due to chemical oxidation and spontaneous combustion, if such minerals are present in sufficient amounts and occur in a form known to present a spontaneous combustion hazard.

Front 2018

Self-Ignition

Back 2018

Ignition resulting from self-heating, synonymous with spontaneous ignition.

Front 2019

Self-Ignition

Back 2019

The initiation of combustion as evidenced by the observed presence of flame.

Front 2020

Self-Ignition Temperature

Back 2020

The minimum temperature at which the self-heating properties of a material lead to ignition.

Front 2021

Self-Latching Bolt

Back 2021

An automatic-latching device that engages in a keeper to hold a door leaf in a closed position and that can only be released manually.

Front 2022

Self-Limiting

Back 2022

A device with a maximum output restricted to a specified value by its magnetic and electrical characteristics.

Front 2023

Self-Luminous

Back 2023

A type of sign that is self-energized with respect to luminosity and requires no external power source.

Front 2024

Self-Luminous

Back 2024

Illuminated by a self-contained power source and operated independently of external power sources.

Front 2025

Self-Piloted Burner

Back 2025

A burner in which the pilot fuel is issued from the same ports as the main flame or merges with the main flame to form a common flame envelope with a common flame base.

Front 2026

Self-Preservation (Day-Care
Occupancy)

Back 2026

The ability of a client to evacuate a day-care occupancy without direct intervention by a staff member.

Front 2027

Self-Propelled Equipment

Back 2027

Any unit that contains a motive power train as an integral part of the unit and is not rail-mounted.

Front 2028

Self-Propelled Equipment

Back 2028

Any unit that contains a motive power train as an integral part of the unit and is not rail mounted. [122:3.3]

Front 2029

Self-Rescue

Back 2029

Escaping or exiting a hazardous area under one’s own power.

Front 2030

Self-Rescue

Back 2030

People leaving the hazardous area or dangerous situation without any professional (fire fighters, rescue personnel, etc.) help.

Front 2031

Self-Service Fueling

Back 2031

The dispensing of aviation fuels into aircraft fuel tanks by persons other than the facility owner/operator.

Front 2032

Self-Service Storage Facility
(Accessibility)

Back 2032

Real property designed and used for the purpose of renting or leasing individual storage spaces to customers for the purpose of storing and removing personal property on a self-service basis.

Front 2033

Selvedge

Back 2033

The outermost edge of the width of the fabric.

Front 2034

Semiautomatic Holdup Alarm
System

Back 2034

A system or portion thereof in which the initiation of a holdup signal does not depend solely on operation of manually operated hand or foot initiating devices installed within the working area.

Front 2035

Semiautomatic Hose Rack
Assembly

Back 2035

The same as a “conventional” pin rack or hose reel except that, after the valve is opened, a retaining device holds the hose and water until the last few feet are removed.

Front 2036

Semiautomatic Standpipe
System

Back 2036

A standpipe system that is attached to a water supply capable of supplying the system demand at all times and that requires activation of a control device to provide water at hose connections.

Front 2037

Semiconductive

Back 2037

Possessing a conductivity between 102 pS/m and 104 pS/m or a resistivity between 108 Ω-m and 1010 Ω-m.

Front 2038

Semiconductive Hose

Back 2038

Any hose with an electrical resistance sufficient to limit the flow of stray electric currents to safe levels, yet not high enough to prevent the relaxation of static electric charges to ground.

Front 2039

Semiconductor Fabrication
Facility

Back 2039

Buildings or portions thereof used for the fabrication of semiconductors and related research containing quantities of hazardous materials exceeding the maximum allowable quantities of Level 5 contents permitted in control area.

Front 2040

Semi-Developed Campground

Back 2040

A campground with two or more recreational vehicle or recreational park trailer unit sites, accessible by vehicular traffic. Roads and facilities (toilets and/or privies) are provided.

Front 2041

Semifixed System

Back 2041

A system in which the hazard is equipped with fixed discharge outlets connected to piping that terminates at a safe distance.

Front 2042

Semifluidized

Back 2042

In a fluidized bed boiler, the state in which a uniform flow of air that is less than that necessary to fluidize the bed is admitted and is found to be sufficient to adequately remove gaseous combustibles.

Front 2043

Semipermanent Connection

Back 2043

A noninterchangeable connection, usually a D.I.S.S. connector, which is the termination of the pipeline and that is intended to be detached only for service. It is not the point at which the user makes connections or disconnections. (PIP)

Front 2044

Semi-Primitive Campground

Back 2044

A campground accessible only by walk-in, equestrian, or motorized trail vehicles where rudimentary facilities (privies and/or fireplaces) may be provided for the comfort and convenience of the campers

Front 2045

Semiquantitative Methods

Back 2045

Methods that are based on the ability or need to quantify either the likelihood or the consequence of a fire event or events.

Front 2046

Semisubsurface Foam
Injection

Back 2046

Discharge of foam at the liquid surface within a storage tank from a floating hose that rises from a piped container near the tank bottom.

Front 2047

Semi-Trailer Tank

Back 2047

Any vehicle with or without auxiliary motive power, equipped with a cargo tank mounted thereon or built as an integral part thereof, used for the transportation of flammable and combustible liquid or
asphalt, and so constructed that, when drawn by a tractor by means of a fifth wheel connection, some part of its load and weight rests upon the towing vehicle.

Front 2048

Sensing Edge (Rolling Steel
Fire Door)

Back 2048

A device added to the underside of the bottom bar of a
power-operated rolling steel fire door or fire shutter that stops or
reverses the door curtain upon contact with an obstruction when
closing under power.

Front 2049

Sensitivity

Back 2049

A characteristic of an explosive material, classifying its ability to detonate upon receiving an external impulse such as impact shock, flame, or other influence that can cause explosive decomposition.

Front 2050

Sensitivity Analysis

Back 2050

An analysis performed to determine the degree to which a predicted output will vary given a specified change in an input parameter, usually in relation to models.

Front 2051

Sensitivity Analysis

Back 2051

An analysis performed to determine the degree to which a predicted output will vary given a specified change in an input parameter, usually in relation to models. [101, 2003]

Front 2052

Sensitivity Analysis

Back 2052

An analysis performed to determine the degree to which a predicted output will vary given a specified change in an input parameter, usually in relation to models. [5000, 2006]

Front 2053

Sensitivity Analysis

Back 2053

An analysis performed to determine the degree to which a predicted output will vary given a specified change in an input parameter, usually in relation to models. [5000, 2009]

Front 2054

Sensor

Back 2054

A device, such as a photoelectric cell, that receives and responds to stimulus.

Front 2055

Separable Power Supply Cable
Assembly

Back 2055

A flexible cord or cable, including ungrounded, grounded, and equipment grounding conductors, provided with a cord connector, an attachment plug, and all other fittings, grommets, or devices installed for the purpose of delivering energy from the source of electrical supply to the truck or TRU flanged surface inlet.

Front 2056

Separate

Back 2056

A material response evidenced by splitting or delaminating.

Front 2057

Separate

Back 2057

A material response evidenced by splitting or delaminating. [1971, 2007]

Front 2058

Separate Atmosphere

Back 2058

The atmosphere that exists between rooms, spaces, or areas that are separated by an approved smoke barrier.

Front 2059

Separated Occupancy

Back 2059

A multiple occupancy where the occupancies are separated by fire resistance-rated assemblies.

Front 2060

Separated Spaces

Back 2060

Spaces within a building that are isolated from large-volume spaces by smoke barriers.

Front 2061

Separate Fire Division

Back 2061

A portion of a building cut off from all other portions of the building by fire walls, fire doors, and other approved means adequate to prevent any fire that can occur in one fire division from extending to another fire division.

Front 2062

Separate Inside Storage Area

Back 2062

A room or building used for the storage of aerosol products and separated from other occupancies.

Front 2063

Separate Inside Storage Area
— Attached Building

Back 2063

A building that has only one common wall with a building that has other occupancies.

Front 2064

Separate Inside Storage Area
— Cut-Off Room

Back 2064

A room within a building that has at least one exterior wall.

Front 2065

Separate Inside Storage Area
— Fenced Enclosure

Back 2065

A segregated area meeting the requirements of 6.3.5.3.2.

Front 2066

Separate Inside Storage Area
— Inside Room

Back 2066

A room totally enclosed within a building and having no exterior walls.

Front 2067

Separately Derived System

Back 2067

A premises wiring system whose power is derived from a battery, a solar photovoltaic system, or from a generator, transformer, or converter windings, and that has no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system. Equipment-grounding conductors are not supply conductors and are to be interconnected.

Front 2068

Separately Derived System

Back 2068

A premises wiring system whose power is derived from a source of electric energy or equipment other than a service. Such systems have no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system.

Front 2069

Separately Derived System

Back 2069

A premises wiring system whose power is derived from a source of electric energy or equipment other than a service. Such systems have no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system. [70, 2008]

Front 2070

Separate Nonprocess-Related
Structure

Back 2070

A structure that is physically separated and does not contain any process-related equipment associated with the collection and treatment of wastewater and solids derived from wastewater treatment processes.

Front 2071

Separate/Separation

Back 2071

A material response evidenced by splitting or delaminating.

Front 2072

Separate Sleeping Area

Back 2072

The area of a dwelling unit where the bedrooms or sleeping rooms are located. [72, 2007]

Front 2073

Separate Sleeping Area

Back 2073

The area of a dwelling unit where the bedrooms or sleeping rooms are located. [720, 2005] (SIG-HOU)

Front 2074

Separation

Back 2074

An intervening space (as opposed to barrier).

Front 2075

Separation

Back 2075

The interposing of distance between the combustible particulate solid process and other operations that are in the same room.

Front 2076

Separation of Hazards

Back 2076

Physically separated by a specified distance, construction, or appliance.

Front 2077

Separation of Hazards

Back 2077

Physically separated by a specified distance, construction, or appliance. [55, 2005]

Front 2078

Separation Sump

Back 2078

A containment basin that is used to separate oils, miscella, or solvent from water by means of the immiscibility of the liquids and their differing densities.

Front 2079

Series Regulator

Back 2079

A pressure regulator in series with one or more other pressure regulators.

Front 2080

Service

Back 2080

The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served.

Front 2081

Service

Back 2081

The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served.
[70, 2005]

Front 2082

Service

Back 2082

The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served.
[70, 2008]

Front 2083

Service Brake

Back 2083

A system capable of decelerating the vehicle at a controlled rate to a desired, reduced speed or complete stop.

Front 2084

Service Branch

Back 2084

A branch within the logistics section responsible for service activities at an incident or planned event, including the communications unit, medical unit, and food unit.

Front 2085

Service Cable

Back 2085

Service conductors made up in the form of a cable.

Front 2086

Service Conductors

Back 2086

The conductors from the service point to the service disconnecting means.

Front 2087

Service Conductors

Back 2087

The conductors from the service point to the service disconnecting means. [70, 2008]

Front 2088

Service Connection

Back 2088

A point at which fuel, an atomizing medium, or power is connected to the firing equipment or controlled devices.

Front 2089

Service Corridor

Back 2089

A fully enclosed passage used for transporting HPM and for purposes other than required means of egress.

Front 2090

Service Corridor

Back 2090

A fully enclosed passage used for transporting HPM and for purposes other than required means of egress. [5000, 2009]

Front 2091

Service Counter Fire Door

Back 2091

A labeled assembly consisting of a rolling steel fire door that incorporates a four-sided frame used for the protection of openings in walls where the primary purpose of the opening is for nonpedestrian use, such as counter service for food, a pharmaceutical dispensary, package and baggage transfer, or observation ports.

Front 2092

Service Drop

Back 2092

The overhead service conductors from the last pole or other aerial support to and including the splices, if any, connecting to the service-entrance conductors at the building or other structure.

Front 2093

Service Drop

Back 2093

The overhead service conductors from the last pole or other aerial support to and including the splices, if any, connecting to the service-entrance conductors at the building or other structure.
[70, 2008]

Front 2094

Service Entrance
(Accessibility)

Back 2094

An entrance intended primarily for delivery of goods or services. [See also 3.3.183.1, Public Entrance (Accessibility), and 3.3.183.2, Restricted Entrance (Accessibility).]

Front 2095

Service-Entrance Cable

Back 2095

A single conductor or multiconductor assembly provided with or without an overall covering, primarily used for services, and of the following types:

Front 2096

Service-Entrance Conductors, Overhead System

Back 2096

The service conductors between the terminals of the service equipment and a point usually outside the building, clear of building walls, where joined by tap or splice to the service drop.

Front 2097

Service-Entrance Conductors, Overhead System

Back 2097

The service conductors between the terminals of the service equipment and a point usually outside the building, clear of building walls, where joined by tap or splice to the service drop. [70, 2008]

Front 2098

Service-Entrance Conductors, Underground System

Back 2098

The service conductors between the terminals of the service equipment and the point of connection to the service lateral.

Front 2099

Service-Entrance Conductors, Underground System

Back 2099

The service conductors between the terminals of the service equipment and the point of connection to the service lateral. [70, 2008]

Front 2100

Service Equipment

Back 2100

The necessary equipment, usually consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the load end of service conductors to a building or other structure, or an otherwise designated area, and intended to constitute the main control and cutoff of the supply.

Front 2101

Service Equipment

Back 2101

The necessary equipment, usually consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the load end of service conductors to a building or other structure, or an otherwise designated area, and intended to constitute the main control and cutoff of the supply. [70, 2005]

Front 2102

Service Equipment

Back 2102

The necessary equipment, usually consisting of a circuit breaker(s) or switch(es) and fuse(s), and their accessories, connected to the load end of service conductors to a building or other structure, or an otherwise designated area, and intended to constitute the main control and cutoff of the supply. [70, 2008]

Front 2103

Service Factor

Back 2103

A multiplier of an ac motor that, when applied to the rated horsepower, indicates a permissible horsepower loading that can be carried at the rated voltage, frequency, and temperature. For example, the multiplier 1.15 indicates that the motor is permitted to be overloaded to 1.15 times the rated horsepower.

Front 2104

Service Head Adapter

Back 2104

A transition fitting for use with plastic piping (which is encased in
non-pressure-carrying metal pipe) that connects the metal pipe casing
and plastic pipe and tubing to the remainder of the piping system.

Front 2105

Service Head Adapter

Back 2105

A transition fitting for use with polyethylene or polyamide pipe or tubing that is recommended by the manufacturer for field assembly and installation at the aboveground termination end of an anodeless riser.

Front 2106

Service Inlet

Back 2106

The pneumatic terminus of a Level 3 piped vacuum system. (PIP)

Front 2107

Service (Laser Products)

Back 2107

The performance of those procedures or adjustments described in the manufacturer’s service instructions that can affect any aspect of the performance of the laser or laser system.

Front 2108

Service Lateral

Back 2108

The underground service conductors between the street main, including any risers at a pole or other structure or from transformers, and the first point of connection to the service-entrance conductors in a terminal box or meter or other enclosure, inside or outside the building wall. Where there is no terminal box, meter, or other enclosure, the point of connection is considered to be the point of entrance of the service conductors into the building.

Front 2109

Service Lateral

Back 2109

The underground service conductors between the street main, including any risers at a pole or other structure or from transformers, and the first point of connection to the service-entrance conductors in a terminal box or meter or other enclosure, inside or outside the building wall. Where there is no terminal box, meter, or other enclosure, the point of connection is considered to be the point of entrance of the service conductors into the building. [70, 2008]

Front 2110

Service Life

Back 2110

The period for which compliant product can be useful before retirement.

Front 2111

Service Life

Back 2111

The period for which compliant product may be useful before retirement.

Front 2112

Service Life

Back 2112

The period for which the protective clothing is useful before retirement.

Front 2113

Service Meter Assembly

Back 2113

The piping and fittings installed by the serving gas supplier to connect the inlet side of the meter to the gas service and to connect the outlet side of the meter to the customer’s house or yard piping.

Front 2114

Service Operation

Back 2114

Routine service checks, correction of flight crew complaints, and minor repair and maintenance performed while the aircraft is routinely in out-of-flying status.

Front 2115

Service Outlet

Back 2115

The pneumatic terminus of a piped gas system for other than critical, continuous duty, nonflammable medical life support type gases such as oxygen, nitrous oxide, or medical air. (PIP)

Front 2116

Service Point

Back 2116

The point of connection between the facilities of the serving utility and the premises wiring.

Front 2117

Service Point

Back 2117

The point of connection between the facilities of the serving utility and the premises wiring. [70, 2008]

Front 2118

Service Pressure

Back 2118

The settled gas pressure at a uniform gas temperature of 21°C (70°F) in CNG systems, and at 15°C (59°F) for CH2 systems when the equipment is properly and completely charged with gas.

Front 2119

Service Regulator

Back 2119

A pressure regulator installed by the serving gas supplier to reduce and limit the service line gas pressure to delivery pressure.

Front 2120

Service Request

Back 2120

Any communication from the public or other agency that prompts action by a telecommunicator.

Front 2121

Service Shutoff Valve

Back 2121

A valve, installed by the serving gas supplier between the service meter or source of supply and the customer piping system, to shut off the entire piping system.

Front 2122

Service Space

Back 2122

Space on a marine vessel outside the cargo area that is used for a galley; a pantry containing cooking appliances, lockers, or storerooms; workshops (except those workshops located in machinery spaces);
and other similar spaces and access trunk to those spaces.

Front 2123

Service Structure

Back 2123

A structure or portion thereof that is used to house sanitary facilities, such as water closets or lavatories.

Front 2124

Service Test

Back 2124

Hydrostatic test conducted by users on in-service hose, couplings, nozzles, or appliances to determine suitability for continued service.

Front 2125

Service Test

Back 2125

The regular, periodic inspection and testing of apparatus and equipment, according to an established schedule and guideline, to ensure that they are in safe and functional operating condition.

Front 2126

Service Test

Back 2126

The regular, periodic inspection and testing of apparatus and equipment, according to an established schedule and guideline, to ensure that they are in safe and functional operating condition. [1500, 2007]

Front 2127

Service Test Pressure

Back 2127

A pressure equal to approximately 110 percent of the operating pressure.

Front 2128

Service Tests

Back 2128

Tests performed on a ground ladder to determine if it meets the standard for continued service.

Front 2129

Servicing

Back 2129

Performing maintenance, recharging, or hydrostatic testing.

Front 2130

Servicing

Back 2130

Performing maintenance, recharging, or hydrostatic testing on a fire extinguisher.

Front 2131

Servicing Level

Back 2131

Location on which persons normally stand when operating or maintaining the electrical equipment.

Front 2132

Servo Drive System

Back 2132

A system consisting of a controller, servo amplifier, motor, and feedback device(s) providing for the positioning control of a motion axis through the use of velocity, acceleration, and deceleration.

Front 2133

Set

Back 2133

A structure built or assembled for the purpose of motion picture, television, or commercial productions.

Front 2134

SETIQ

Back 2134

The Emergency Transportation System for the Chemical Industry in
Mexico.

Front 2135

Set Point

Back 2135

A predetermined value to which a device or system is adjusted and at which it performs its intended function.

Front 2136

Set Pressure

Back 2136

As applied to variable speed pressure limiting control systems, the pressure that the variable speed pressure limiting control system is set to maintain.

Front 2137

Set Pressure

Back 2137

The start-to-discharge pressure for which a relief valve is set and marked.

Front 2138

Settled Pressure

Back 2138

The pressure in a container at 21°C (70°F) for CNG and 15°C (59°F)
for H2.

Front 2139

Severe Mobility Impairment

Back 2139

The ability to move to stairs but without the ability to use the stairs.

Front 2140

Severe Service

Back 2140

Those conditions that apply to the rigorous, harsh, and unique applications of fire apparatus, including but not limited to local operating and driving conditions, frequency of use, and manufacturer’s severe service (duty) parameters.

Front 2141

Sewage

Back 2141

Any liquid waste containing animal or vegetable matter in suspension or solution, or the water-carried wastes resulting from the discharge of water closets, laundry tubs, washing machines, sinks, dishwashers, or any other source of water-carried waste of human origin or containing putrescible material.

Front 2142

Sewer

Back 2142

A single pipe or system of pipes or conduits that carries wastewater or drainage water.

Front 2143

Sewer Branch

Back 2143

For recreational vehicle parks and campgrounds, that portion of a sewer system that receives the discharge from more than one sewer lateral.

Front 2144

Sewer Gas

Back 2144

Gas resulting from the decomposition of organic matter in wastewater in sewers and from the incidental, uncontrolled release of hydrocarbons or decomposition of organic matter in stagnant liquid and septic sludge in wastewater treatment plants.

Front 2145

Sewer Lateral

Back 2145

That portion of a sewer system that serves a single site or structure.

Front 2146

Sewer Main

Back 2146

That portion of a sewer system that receives the discharge from all sewer laterals or branches within the recreational vehicle park or campground.

Front 2147

Sewn Seam

Back 2147

A series of stitches joining two or more separate plies of material(s) of planar structure, such as textiles.

Front 2148

Sewn Seam

Back 2148

A series of stitches joining two or more separate plies of material(s) of planar structure, such as textiles. [1975, 2004]

Front 2149

Sewn Seam Strength

Back 2149

The maximum resistance to rupture of the junction formed by stitching together two or more planar structures, such as textile fabrics.

Front 2150

Shaft

Back 2150

An enclosed space extending through one or more stories and connecting vertical openings through two or more successive floors of a building or through floors and roof.

Front 2151

Shaft Alley

Back 2151

A narrow, watertight compartment through which the propeller shaft passes from the aft engine room bulkhead to the propeller.

Front 2152

Shaftway

Back 2152

A tunnel or alleyway through which the drive shaft or rudder shaft passes.

Front 2153

Shall

Back 2153

Indicates a mandatory requirement.

Front 2154

Shall be Considered

Back 2154

Requires an objective assessment, the results and basis of which are documented, to determine to what extent the specific factor, criterion, guideline, standard, etc., is incorporated into or satisfied by the design.

Front 2155

Shank

Back 2155

The component of footwear that provides additional support to the instep.

Front 2156

Shapes of Ceilings

Back 2156

The shapes of ceilings can be classified as sloping or smooth. (SIG-IDS)

Front 2157

Sharps Containers

Back 2157

Containers that are closable, puncture-resistant, disposable, and leakproof on the sides and bottom; red in color or display the universal biohazard symbol; and designed to store sharp objects after use.

Front 2158

Shear Wall

Back 2158

A wall, bearing or nonbearing, designed to resist lateral seismic forces acting in the plane of the wall (sometimes referred to as a vertical diaphragm). [ASCE/SEI 7:11.2]

Front 2159

Sheath

Back 2159

A material used as a continuous protective covering around one or more insulated conductors.

Front 2160

Sheer

Back 2160

Upper edge of hull exterior at the intersection with the deck.

Front 2161

Sheeting

Back 2161

The members of a shoring system that support the sides of an excavation and are in turn supported by other members of the shoring system.

Front 2162

Sheeting or Sheathing

Back 2162

A component of a shoring system with a large surface area supported by the uprights and cross-bracing of the shoring system that is used to retain the earth in position when loose or running soils are encountered.

Front 2163

Shelf Storage

Back 2163

Storage on structures that are less than 0.75 m (21/ ft) deep, with
2
shelves usually 0.6 m (2 ft) to 0.9 m (3 ft) apart vertically and seldom
exceeding 4.5 m (15 ft) in total height.

Front 2164

Shelf Storage

Back 2164

Storage on structures up to and including 30 in. (762 mm) deep with shelves usually 2 ft (0.6 m) apart vertically and separated by approximately 30 in. (762 mm) aisles.

Front 2165

Shell

Back 2165

A helmet without the suspension system, accessories, and fittings.

Front 2166

Shield Ground

Back 2166

Intentional grounding of one or both ends of the shield of a cable.

Front 2167

Shield Ground, Power Cables

Back 2167

The shield of power cables can be connected to the
equipment-grounding conductor at either one end of the cable
(single end) or at both ends (double ended). Shielding will ensure
uniform dielectric stress along the length of the cable. When
grounded at both ends, cable derating might be necessary because of
heat due to ground loop current.

Front 2168

Shield or Shield System

Back 2168

An engineered structure that is able to withstand the forces imposed on it by a cave-in and thereby protect persons within the structures.

Front 2169

Shield (or Shield System)

Back 2169

A structure that is able to withstand the forces imposed on it by a cave-in and thereby protect employees within the structures.

Front 2170

Ship

Back 2170

Any vessel propelled by power or sail.

Front 2171

Shipbreaking

Back 2171

The breaking down of a vessel’s structure for the purpose of scrapping the vessel.

Front 2172

Shipping Building

Back 2172

A building used for the packing of assorted display fireworks or for the loading of display fireworks onto vehicles for shipment to purchasers.

Front 2173

Shipping Papers

Back 2173

A shipping order, bill of lading, manifest, or other shipping document serving a similar purpose and containing the information required by regulations of the U.S. Department of Transportation.

Front 2174

Ship’s Agent

Back 2174

A person or firm who transacts all business in a port on behalf of ship owners or charterers.

Front 2175

Ship’s Engineer

Back 2175

Officer on a mechanically propelled vessel charged with maintenance and efficient operation of main engines and, usually, all powered machinery on board.

Front 2176

Shock Hazard

Back 2176

A dangerous condition associated with the possible release of energy caused by contact or approach to energized electrical conductors or circuit parts.

Front 2177

Shock Tube

Back 2177

A small diameter plastic tube used for initiating detonators.

Front 2178

Shooter

Back 2178

A member of the fireworks display crew (either the operator or an assistant) who performs the actual ignition of the fireworks, either by manual or electrical means.

Front 2179

Shop Drawings

Back 2179

Scaled working drawings, equipment cutsheets, and design calculations. (See 3.3.12, Plan.)

Front 2180

Shop Drawings

Back 2180

Scaled working drawings, equipment cutsheets, and design calculations. (See 3.3.12, Plan, of NFPA 1031.) [1031, 2009]

Front 2181

Shop-Fabricated Container

Back 2181

A container that is completely fabricated within a plant under shop-controlled conditions.

Front 2182

Shop-Welded

Back 2182

As used in this standard, shop in the term shop-welded means either (1) a sprinkler contractor’s or fabricator’s premise or (2) an area specifically designed or authorized for welding, such as a detached outside location, maintenance shop, or other area (either temporary or permanent) of noncombustible or fire-resistive construction free of combustible and flammable contents and suitably segregated from adjacent areas.

Front 2183

Shore-Based Rescue

Back 2183

Any technique or procedure that provides a means for extracting a person from the water that does not require any member of the rescue team to leave the safety of the shore.

Front 2184

Shoreline

Back 2184

The farthest extent of standing water under the applicable conditions that determine the electrical datum plane for the specified body of water.

Front 2185

Shore Power Inlet

Back 2185

A reverse service-type fitting designed for mounting on a boat that requires a female connector on the shore power cable in order to make the electrical connection.

Front 2186

Shoring (or Shoring System)

Back 2186

A structure such as a metal hydraulic, pneumatic/mechanical, or timber system that supports the sides of an excavation and is designed to prevent cave-ins.

Front 2187

Shoring System

Back 2187

A system that supports unstable surfaces.

Front 2188

Shoring Team

Back 2188

The group of individuals, with established communications and leadership, assigned to construct, move, place, and manage the shoring or shoring system inside the space, trench, or excavation.

Front 2189

Shoring Team

Back 2189

The group of individuals, with established communications and leadership, assigned to construct, move, place, and manage the shoring or shoring system inside the space, trench, or excavation. [1670, 2004]

Front 2190

Short Circuit

Back 2190

An abnormal connection of low resistance between normal circuit conductors where the resistance is normally much greater. This is an overcurrent situation but it is not an overload.

Front 2191

Short-Circuit Current

Back 2191

An overcurrent resulting from a short circuit due to a fault or an incorrect connection in an electric circuit.

Front 2192

Short-Circuit Current Rating

Back 2192

The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected without sustaining damage exceeding defined acceptance criteria.

Front 2193

Short-Circuit Current Rating

Back 2193

The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected without sustaining damage exceeding defined acceptance criteria.
[70, 2008]

Front 2194

Short-Term Exposure Limit
(STEL)

Back 2194

The concentration to which it is believed that workers can be exposed continuously for a short period of time without suffering from irritation, chronic or irreversible tissue damage, or narcosis of a degree sufficient to increase the likelihood of accidental injury, impairment of self-rescue, or the material reduction of work
efficiency, without exceeding the daily permissible exposure limit
(PEL).

Front 2195

Short-Term Exposure Limit
(STEL)

Back 2195

The concentration to which it is believed that workers can be exposed continuously for a short period of time without suffering from irritation, chronic or irreversible tissue damage, or narcosis of a degree sufficient to increase the likelihood of accidental injury, impairment of self-rescue, or the material reduction of work
efficiency, without exceeding the daily permissible exposure limit
(PEL). [55, 2005]

Front 2196

Short-Time Duty

Back 2196

Operation at a substantially constant load for a short and definitely specified time.

Front 2197

Should

Back 2197

Indicates a recommendation or that which is advised but not required.

Front 2198

Show Window

Back 2198

Any window used or designed to be used for the display of goods or advertising material, whether it is fully or partly enclosed or entirely open at the rear and whether or not it has a platform raised higher than the street floor level.

Front 2199

Shunt-Type Auxiliary Fire
Alarm System

Back 2199

An auxiliary system electrically connected to the public fire alarm reporting system extending a public fire alarm reporting circuit to interconnect initiating devices within a protected premises, which, when operated, opens the public fire alarm reporting circuit shunted around the trip coil of the master box or auxiliary box. The master box or auxiliary box is thereupon energized to start transmission without any assistance from a local source of power. (SIG-PRS)

Front 2200

Shutoff Damper

Back 2200

A close-fitting damper to prevent flow and minimize leakage of air or flue gas into any system component.

Front 2201

Shutoff Devices

Back 2201

Devices that operate simultaneously with the extinguishing system to shut off fuel and power to appliances protected by the system and other appliances required to be shut off upon operation of the system.

Front 2202

Shutoff Valve

Back 2202

A valve whose primary function is to operate in either a fully shutoff or a fully open condition.

Front 2203

Shutter

Back 2203

A labeled door assembly that is used for the protection of a window opening in an exterior wall. (See also 3.3.64, Fire Shutter.)

Front 2204

Side Air Admission

Back 2204

Admission of air to the underside of a grate from the sides of a chain or traveling grate stoker.

Front 2205

Side Ash Discharge Underfeed
Stoker

Back 2205

A stoker having one or more retorts that feed and distribute fuel onto side tuyeres or a grate through which air is admitted for combustion and over which the ash is discharged at the side parallel to the retorts.

Front 2206

Side Dump Stoker

Back 2206

A stoker so arranged that refuse is discharged from a dump plate at the side of the stoker.

Front 2207

Sideflash

Back 2207

An electrical spark, caused by differences of potential, that occurs between conductive metal bodies or between conductive metal bodies and a component of a lightning protection system or ground.

Front 2208

Side Guide Cable System

Back 2208

A continuous vertical cable at each vertical edge of the curtain used to guide and restrain the fire safety curtain.

Front 2209

Side Light

Back 2209

An opening in a fire door frame alongside the fire door opening that is filled with glazing material.

Front 2210

Side Light Frame

Back 2210

A fire door frame prepared for the application of a glazing material alongside the door opening.

Front 2211

Side-Mounted Fuel Tank

Back 2211

A liquid fuel tank that, (a) if mounted on a trailer, extends outboard of the vehicle frame and outside of the plan view outline of the cab; or (b), if mounted on a motor home, extends outboard of a line parallel to the longitudinal centerline of the motor home and tangent to the outboard side of a front tire in a straight-ahead position. In determining whether a fuel tank on a trailer or motor home is side-mounted, the fill pipe is not considered a part of the tank.

Front 2212

Side Panel Frame

Back 2212

A door frame prepared for the installation of a fixed solid metal or wood panel alongside the door opening.

Front 2213

Side Slope

Back 2213

This angle is measured as either the percent of slope or the tilt angle at which the vehicle would become unstable should the vehicle be placed on the side of a steep, angled hill or sloped surface.

Front 2214

Sidewall or Through-Wall
Venting

Back 2214

A mechanical means applied to a nearly horizontal venting system to remove combustion products without benefit of a chimney or significant natural draft.

Front 2215

Sidewall Sprinkler

Back 2215

A sprinkler having special deflectors that are designed to discharge most of the water away from the nearby wall in a pattern resembling
one-quarter of a sphere, with a small portion of the discharge directed at the wall behind the sprinkler.

Front 2216

Sign

Back 2216

A visual indication whether in pictorial or word format that provides a warning to the operator or other persons near the apparatus.

Front 2217

Sign

Back 2217

A visual indication whether in pictorial or word format that provides a warning to the operator or other persons near the apparatus. [1901,
2003]

Front 2218

Sign (Accessibility)

Back 2218

An architectural element composed of displayed text or numbers or symbolic, tactile, or pictorial information.

Front 2219

Signal

Back 2219

An indicator of status.

Front 2220

Signal

Back 2220

A status indication communicated by electrical or other means. [72,
2007]

Front 2221

Signal

Back 2221

A status indication communicated by electrical or other means. (SIG-FUN)

Front 2222

Signal Equipment

Back 2222

Includes audible and visual equipment such as chimes, gongs, lights, and displays that convey information to the user.

Front 2223

Signaling Circuit

Back 2223

Any electrical circuit that energizes signaling equipment.

Front 2224

Signaling Device

Back 2224

A device that indicates an alarm, emergency, or abnormal condition by means of audible, visual, or both methods, including sirens, bells, horns, and strobes.

Front 2225

Signaling Device

Back 2225

Any resource that provides a distinct and predictable display, noise, or sensation that can be used to communicate a predetermined message or to attract the attention of other persons as desired by the initiator
of the signal.

Front 2226

Signaling Line Circuit

Back 2226

A circuit or path between any combination of circuit interfaces, control units, or transmitters over which multiple system input signals or output signals, or both, are carried.

Front 2227

Signaling Line Circuit

Back 2227

A circuit path between any combination of addressable appliances or devices, circuit interfaces, control units, or transmitters over which multiple system input signals or output signals or both are carried. (SIG-PRO)

Front 2228

Signaling Line Circuit
Interface

Back 2228

A system component that connects a signaling line circuit to any combination of initiating devices, initiating device circuits, notification appliances, notification appliance circuits, system control outputs, and other signaling line circuits. (SIG-PRO)

Front 2229

Signal Need

Back 2229

Communicate the threat about the exposed.

Front 2230

Signal-Processing Equipment

Back 2230

The electronic equipment that performs the signal-processing operations such as switch or transport for audio, video, and data signals.

Front 2231

Signal-Processing Equipment
Area

Back 2231

The area or enclosed room of a telecommunications facility that contains signal-processing equipment.

Front 2232

Signal Transmission Sequence

Back 2232

A DACT that obtains dial tone, dials the number(s) of the DACR, obtains verification that the DACR is ready to receive signals, transmits the signals, and receives acknowledgment that the DACR has accepted that signal before disconnecting (going on-hook). (SIG-SSS)

Front 2233

Sign Body

Back 2233

A portion of a sign that may provide protection from the weather but is not an electrical enclosure.

Front 2234

Sill (Rolling Steel Fire Door)

Back 2234

The bottom part of an opening onto which the door curtain and bottom bar come to rest when in the closed position.

Front 2235

Sill (Service Counter Fire
Door)

Back 2235

The bottom part of a frame onto which the door curtain and bottom bar come to rest when in the closed position.

Front 2236

Simple Apparatus

Back 2236

An electrical component or combination of components of simple construction with well-defined electrical parameters that does not generate more than 1.5 volts, 100 milliamps, and 25 milliwatts, or a passive component that does not dissipate more than 1.3 watts and is compatible with the intrinsic safety of the circuit in which it is used.

Front 2237

Simple Asphyxiant Gas

Back 2237

A gas that does not provide sufficient oxygen to support life and that has none of the other physical or health hazards.

Front 2238

Simple Asphyxiant Gas

Back 2238

A gas that does not provide sufficient oxygen to support life and that has none of the other physical or health hazards. [1, 2006]

Front 2239

Simple Rope Mechanical
Advantage System

Back 2239

A rope mechanical advantage system containing a single rope and one or more moving pulleys (or similar devices), all traveling at the same speed and in the same direction, attached directly or indirectly to the load
mass; and may contain one or more stationary pulleys (or similar devices), so that the force on the system is distributed approximately evenly among its supporting rope segments.

Front 2240

Simplex Radio Channel

Back 2240

A radio channel using a single frequency that, at any one time, allows either transmission or reception, but not both, by a particular radio.

Front 2241

Simulation

Back 2241

The repeatable act of carrying out a job performance requirement in a safe environment that reproduces actual job performance conditions to the fullest possible extent.

Front 2242

Single Containment Container

Back 2242

A single wall container or a double wall tank where only the self- supporting primary or inner container is designed to contain LNG.

Front 2243

Single Dwelling Unit

Back 2243

A building consisting solely of one dwelling unit. (SIG-HOU)

Front 2244

Single-Fluid System

Back 2244

A water mist system utilizing a single piping system to supply each nozzle.

Front 2245

Single Hangar Building

Back 2245

A building with one area for the storage and servicing of aircraft and any attached, adjoining, or contiguous structure, such as a lean-to, shop area, or parts storage area not separated as specified in Section 5.2 or 8.2 of this standard, as appropriate.

Front 2246

Single Hazard Area

Back 2246

Where two or more hazards can be simultaneously involved in fire by reason of their proximity, as determined by the authority having jurisdiction.

Front 2247

Single-Injection Pressurization
System

Back 2247

A type of smoke-control system that has pressurization air supplied from only one location.

Front 2248

Single Jacket

Back 2248

A construction consisting of one woven jacket.

Front 2249

Single Ladder

Back 2249

A non-self-supporting ground ladder, nonadjustable in length, consisting of only one section.

Front 2250

Single Ladder

Back 2250

A non-self-supporting ground ladder, nonadjustable in length, consisting of only one section. [1931:3.3]

Front 2251

Single-Line Diagram

Back 2251

A diagram that shows, by means of single lines and graphic symbols, the course of an electric circuit or system of circuits and the component devices or parts used in the circuit or system.

Front 2252

Single-Ply Roofing System

Back 2252

A single-layer roof covering made of plastic, synthetic rubber, or modified bitumen.

Front 2253

Single-Point Anchor System

Back 2253

An anchor system configuration utilizing a single anchor point to provide the primary support for the rope rescue system.

Front 2254

Single-Point Anchor System

Back 2254

An anchor system configuration utilizing a single anchor point to provide the primary support for the rope rescue system. A single-point anchor system includes those anchor systems that utilize one or more additional nonloaded anchor points as backup to the primary anchor point.

Front 2255

Single Point Grounding

Back 2255

The single-point grounding of a transformer means connecting the secondary side of the transformer to earth ground through one or more grounding electrodes. This connection should be made at any point on the separately derived system from the source to the first
system-disconnecting means or overcurrent device.

Front 2256

Single-Point Latch

Back 2256

A latch located in the edge of a door to engage either in the frame or in the edge of the inactive leaf of a pair of doors.

Front 2257

Single-Pole Separable
Connector

Back 2257

A device that is installed at the ends of portable, flexible, single-conductor cable that is used to establish connection or disconnection between two cables or one cable and a single-pole, panel-mounted separable connector.

Front 2258

Single Resource

Back 2258

An individual, a piece of equipment and its personnel, or a crew or team of individuals with an identified supervisor that can be used on an incident or planned event.

Front 2259

Single Retort Stoker

Back 2259

An underfeed stoker using one retort only in the assembly of a complete stoker.

Front 2260

Single-Row Racks

Back 2260

Racks that have no longitudinal flue space and that have a depth up to 6 ft (1.8 m) with aisles having a width of at least 3.5 ft (1.1 m) between loads on racks. [13, 2007]

Front 2261

Single-Row Racks

Back 2261

Racks that have no longitudinal flue space and that have a depth up to 6 ft (1.8 m) with aisles having a width of at least 3.5 ft (1.1 m) between loads on racks.

Front 2262

Single-Stage Regulator

Back 2262

A pressure regulator for LP-Gas vapor service designed to reduce pressure from the container to 1.0 psig (6.9 kPag) or less.

Front 2263

Single Station Alarm

Back 2263

A detector comprising an assembly that incorporates a sensor, control components, and an alarm notification appliance in one unit
operated from a power source either located in the unit or obtained at the point of installation. [72, 2007]

Front 2264

Single Station Alarm

Back 2264

A detector comprising an assembly that incorporates a sensor, control components, and an alarm notification appliance in one unit
operated from a power source either located in the unit or obtained at the point of installation. (SIG-HOU)

Front 2265

Single Station Alarm Device

Back 2265

An assembly that incorporates the detector, the control equipment, and the alarm-sounding device in one unit operated from a power supply either in the unit or obtained at the point of installation. (SIG-HOU)

Front 2266

Single Station [Carbon
Monoxide] Alarm

Back 2266

A detector comprising an assembly that incorporates a sensor, control components, and an alarm notification appliance in one unit
operated from a power source either located in the unit or obtained at the point of installation. [72, 2007]

Front 2267

Single-Tier Book Stack

Back 2267

Freestanding bracket, cantilever, or case shelving enclosed on one level by a fire compartment.

Front 2268

Single Treatment Facility

Back 2268

A diagnostic or treatment complex under a single management comprising a number of use points, but confined to a single contiguous group of use points (i.e., does not involve widely separated locations or separate distinct practices). (PIP)

Front 2269

Single-Use Garment

Back 2269

A garment that is designed to be used one time and then disposed of.

Front 2270

Single-Use Item

Back 2270

Items that are designed to be used one time and then disposed of.

Front 2271

Site

Back 2271

Refers to the contiguous property that makes up a nuclear power plant facility. This would include areas both inside the protected area and the owner-controlled property.

Front 2272

Site

Back 2272

The entire premises within the governed property lines that contains one or more facilities.

Front 2273

Site

Back 2273

The general physical location of the incident, including the scene and the surrounding area deemed significant to the process of the investigation and support areas.

Front 2274

Site

Back 2274

The location of an industrial complex/facility that includes all property within the property lines of the company.

Front 2275

Site (Accessibility)

Back 2275

A parcel of land bounded by a property line or a designated portion of a public right-of-way.

Front 2276

Site Class

Back 2276

A classification assigned to a site based on the types of soils present and their engineering properties as defined in ASCE/SEI 7, Section 20. [ASCE/SEI 7:11.2]

Front 2277

Site Emergency Team

Back 2277

An organized group of trained response personnel operating under an emergency response plan and appropriate standard operating procedures that handles and controls actual or potential emergency incidents and that responds to emergencies for the purpose of control or stabilization of the incident.

Front 2278

Site-Isolating Device

Back 2278

A disconnecting means installed at the distribution point for the purposes of isolation, system maintenance, emergency disconnection, or connection of optional standby systems.

Front 2279

Site of Intentional Expulsion

Back 2279

All points within 0.3 m (1 ft) of a point at which an oxygen-enriched atmosphere is intentionally vented to the atmosphere. (GAS)

Front 2280

Site Operations

Back 2280

The activities to be undertaken at a specific site to manage the rescue efforts.

Front 2281

Site Safety and Control Plan

Back 2281

A site safety and control plan should be completed and approved by the hazardous materials officer, the hazardous materials safety officer, and the incident commander for inclusion in the incident action
plan. The plan must be briefed to personnel operating within the hot zone by the hazardous materials safety officer or the hazardous materials officer prior to entry mission initiation. The initial site safety and control plan for the first operational period can be written or
oral. The plan should be documented as soon as resources allow.

Front 2282

Site-Specific Hazard

Back 2282

A hazard that is present at the specific facility for which the industrial fire brigade has been organized.

Front 2283

Site-Specific Hazard

Back 2283

A hazard that is present at the specific facility for which the industrial fire brigade has been organized. [600, 2005]

Front 2284

Site-Specific Software

Back 2284

Software that defines the specific operation and configuration of a particular system. Typically, it defines the type and quantity of hardware modules, customized labels, and specific operating features of a system. (SIG-TMS)

Front 2285

Site Stabilization

Back 2285

Those activities directed at mitigating the dangerous elements of an emergency situation.

Front 2286

Situation Analysis

Back 2286

The process of evaluating the severity and consequences of an incident and communicating the results.

Front 2287

Situation Awareness

Back 2287

The perception of the elements in the environment within a volume of time and space, the comprehension of their meaning, and the projection of their status in the near future.

Front 2288

Situation Unit

Back 2288

Functional unit within the planning section responsible for analysis of a situation as it progresses; reports to planning section chief.

Front 2289

Size-Up

Back 2289

A mental process of evaluating the influencing factors at an incident prior to committing resources to a course of action.

Front 2290

Size Up

Back 2290

The observation and evaluation of existing factors that are used to develop objectives, strategy, and tactics for fire suppression.

Front 2291

Size-Up

Back 2291

The ongoing observation and evaluation of factors that are used to develop strategic goals and tactical objectives.

Front 2292

Size-Up (Risk Assessment)

Back 2292

A mental process of evaluating the influencing factors at an incident prior to committing resources to a course of action. [1670, 2004]

Front 2293

Size-Up (Risk Assessment)

Back 2293

A mental process of evaluating the influencing factors at an incident prior to committing resources to a course of action. [1670:3.3]

Front 2294

Skeleton Tubing

Back 2294

Neon tubing that is itself the sign or outline lighting and not attached to an enclosure or sign body.

Front 2295

Skills

Back 2295

Behaviors or actions that require practice in order to be performed satisfactorily. The skills or abilities can be manual, social, interpersonal, or intellectual.

Front 2296

Skin

Back 2296

The outer covering of an aircraft fuselage, wings, and empennage.

Front 2297

Skin-Effect Heating System

Back 2297

A system in which heat is generated on the inner surface of a ferromagnetic envelope attached to a pipeline or vessel, or both.

Front 2298

Skin-Effect Heating System

Back 2298

A system in which heat is generated on the inner surface of a ferromagnetic envelope embedded in or fastened to the surface to be heated.

Front 2299

Skirting

Back 2299

A weather-resistant material used to enclose the perimeter of the conditioned living area of the home from the bottom of the manufactured home to grade.

Front 2300

Skyrockets or Rockets with
Sticks

Back 2300

Commercially manufactured fireworks rockets not intended for reuse.

Front 2301

Skywalk Bridge

Back 2301

Any elevated bridge-like structure connecting two buildings and primarily designed for pedestrian use.

Front 2302

Slab

Back 2302

A poured concrete floor-ceiling assembly.

Front 2303

Slash

Back 2303

Debris resulting from natural events such as wind, fire, snow, or ice breakage; or from human activities such as building or road construction, logging, pruning, thinning, or brush cutting.

Front 2304

Slave Pallet

Back 2304

A special pallet captive to a material-handling system. (See Figure
A.3.9.1.7.)

Front 2305

Sleeping Suite (Health Care
Occupancies)

Back 2305

A suite containing one or more patient beds intended for overnight sleeping.

Front 2306

Sleeve Length

Back 2306

Upper torso garment measurement from center back at bottom of collar seam diagonally across back and down sleeve to bottom edge of cuff. In other specified instances, it is a measurement from center sleeve setting seam at shoulder to bottom edge of sleeve.

Front 2307

Slide Blocks

Back 2307

Blocks made of a variety of materials (e.g., brass, nylatron) that act as spacing devices, wear strips, or wear pads.

Front 2308

Sliding Hardware

Back 2308

A system of rails, hangers, rollers, guides, binders, and closing devices that are self-closing by means of gravity, weights, and pulleys or
spring-actuated devices.

Front 2309

Slip

Back 2309

A berthing space between or adjacent to piers, wharves, or docks; the water areas associated with boat occupation. (See also 3.3.1, Berth.)

Front 2310

Slip-On Fire-Fighting Module

Back 2310

A self-contained unit that includes an auxiliary engine-driven pump, piping, a tank, and hose storage that is designed to be placed on a truck chassis, utility bed, flatbed, or trailer of sufficient carrying capacity.

Front 2311

Slip Tube Gauge

Back 2311

A variable liquid level gauge in which a relatively small positive shutoff valve is located at the outside end of a straight tube, normally installed vertically, that communicates with the container interior.

Front 2312

Slip Tube Gauge

Back 2312

A variable liquid level gauge in which a relatively small positive shutoff valve is located at the outside end of a straight tube, normally installed vertically, that communicates with the container interior. [58, 2008]

Front 2313

Slope

Back 2313

For recreational vehicles, a grade or fall of a line of pipe in reference to a horizontal plane.

Front 2314

Slope

Back 2314

Upward or downward incline or slant, calculated as rise divided by run and expressed as a percentage.

Front 2315

Slope

Back 2315

Upward or downward incline or slant, usually calculated as a percentage.

Front 2316

Sloped Ceiling

Back 2316

A ceiling with a slope exceeding 2 in 12.

Front 2317

Sloped Glazing

Back 2317

Any installation of glass or other transparent, translucent, or opaque glazing material installed at a slope of 15 degrees or more from the vertical plane, including glazing materials in skylights, roofs, and sloped walls.

Front 2318

Slope of Grain Wood
Irregularities

Back 2318

A deviation of the fiber direction from a line parallel to the sides of the piece.

Front 2319

Sloping Ceiling

Back 2319

A ceiling that has a slope of more than 1 in 8. (SIG-IDS)

Front 2320

Sloping Peaked-Type Ceiling

Back 2320

A ceiling in which the ceiling slopes in two directions from the highest point. Curved or domed ceilings can be considered peaked with the slope figured as the slope of the chord from highest to lowest point. (SIG-IDS)

Front 2321

Sloping Shed-Type Ceiling

Back 2321

A ceiling in which the high point is at one side with the slope extending toward the opposite side. (SIG-IDS)

Front 2322

Sloping System

Back 2322

A protecting system that uses inclined excavating to form sides that are inclined away from the excavation so as to prevent cave-in.

Front 2323

Slough-In

Back 2323

A type of collapse characterized by an interior portion of the trench wall spalling out and potentially leaving an overhanging ledge or void that needs to be filled.

Front 2324

Slow Evacuation Capability

Back 2324

The ability of a group to move reliably to a point of safety in a timely manner, but not as rapidly as members of a household in the general population.

Front 2325

Slow-Operating Valve

Back 2325

A valve that has a mechanism to prevent movement of the
flow-regulating element from the fully closed position to the fully
opened position or vice versa in less than 3 seconds.

Front 2326

Slow-Operating Valve

Back 2326

A valve that has a mechanism to prevent movement of the
flow-regulating element from the fully closed position to the fully
opened position or vice versa in less than 3 seconds. [1901, 2003]

Front 2327

Slow-Operating Valve

Back 2327

A valve that has a mechanism to prevent movement of the
flow-regulating element from the fully closed position to the fully
opened position or vice versa in less than 3 seconds. [1901:3.3]

Front 2328

Sludge

Back 2328

A semiliquid mass of accumulated settled solids deposited from raw or treated wastewater in tanks or basins; also referred to as biosolids.

Front 2329

Sludge Cake

Back 2329

A semisolid product of a sludge-dewatering process.

Front 2330

Sludge Dewatering

Back 2330

The process of removing a part of the water in sludge by any physical or mechanical method without heat, such as draining, pressing, vacuum filtration, centrifuging, or passing between rollers.

Front 2331

Sludge-Drying System

Back 2331

A process that uses physical or mechanical evaporation techniques with or without the application of heat to achieve solids concentrations greater than 85 percent.

Front 2332

Sludge Gas

Back 2332

Gas obtained as a by-product of the anaerobic sludge digestion process from the decomposition of organic matter in biosolids in liquid or
semi-solid state when stored for extended periods of time.

Front 2333

Sludge Gas Vent

Back 2333

A passage that allows the controlled release of gases from anaerobic treatment processes or gas storage facilities.

Front 2334

Sludge Thickening

Back 2334

A sludge treatment process designed to concentrate wastewater sludges by gravity, mechanical means, or air flotation.

Front 2335

Sludge Treatment

Back 2335

The processing of wastewater sludges to render them stable.

Front 2336

Slug Flow

Back 2336

The discharge of distinct pockets of air and water or weak foam solution due to the insufficient or uneven mixing of foam concentrate, water, and air in a compressed air foam system (CAFS).

Front 2337

Slurry

Back 2337

An explosive material containing substantial portions of a liquid, oxidizers and fuel, plus a thickener.

Front 2338

Small Arms Ammunition

Back 2338

Any shotgun, rifle, or pistol cartridge and any cartridge for propellant-actuated devices.

Front 2339

Small Arms Ammunition
Primers

Back 2339

Small percussion-sensitive explosive charges encased in a cap and used to ignite propellant powder.

Front 2340

Small Combustible Liquid
Storage Area

Back 2340

An area used for storage of Class II and Class III combustible liquids where the aggregate quantity present is from 227 L to 3785 L (60 gal to 1000 gal). Handling of liquids incidental to transfer can take place within a storage area.

Front 2341

Small Flammable Liquid
Storage Area

Back 2341

An area used for storage of Class I liquids where the aggregate quantity present is 37.8 L (10 gal) or less.

Front 2342

Small Machine

Back 2342

Machinery or equipment capable of simple disassembly, or
constructed of lightweight materials, presenting simple hazards, which
are capable of being controlled by the rescuer(s).

Front 2343

Small Room

Back 2343

A room of light hazard occupancy classification having unobstructed construction and floor areas not exceeding 800 ft2 (74.3 m2) that are enclosed by walls and a ceiling. Openings in walls not exceeding 8 ft (2.44 m) in width to adjoining spaces are permitted if the minimum lintel depth is 8 in. (203 mm) from the ceiling. A single opening of
36 in. (914 mm) or less in width without a lintel is permitted when there are no other openings to adjoining spaces.

Front 2344

Smoke

Back 2344

The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass.

Front 2345

Smoke

Back 2345

The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. [318, 2006]

Front 2346

Smoke

Back 2346

The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. [318, 2009]

Front 2347

Smoke Alarm

Back 2347

A single or multiple station alarm responsive to smoke. [72, 2007]

Front 2348

Smoke Alarm

Back 2348

A single or multiple station alarm responsive to smoke. (SIG-HOU)

Front 2349

Smoke Barrier

Back 2349

A continuous assembly, or an assembly with discontinuities created by protected openings, where such assembly is designed and constructed to resist the movement of smoke.

Front 2350

Smoke Barrier

Back 2350

A continuous membrane, either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke.

Front 2351

Smoke Barrier

Back 2351

A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke.

Front 2352

Smoke Barrier

Back 2352

A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. [101, 2006]

Front 2353

Smoke Barrier

Back 2353

A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. [101:3.3]

Front 2354

Smoke Barrier

Back 2354

A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. [5000, 2009]

Front 2355

Smoke Barrier

Back 2355

For the purposes of this standard, a continuous membrane, either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke in conjunction with a smoke control or management system.

Front 2356

Smoke Barrier

Back 2356

For the purposes of this standard, a continuous membrane, either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke in conjunction with a smoke-control system.

Front 2357

Smoke Chamber

Back 2357

The transitional area from the damper opening to the beginning of the flue liner in a fireplace system.

Front 2358

Smoke Compartment

Back 2358

A space within a building enclosed by smoke barriers on all sides, including the top and bottom.

Front 2359

Smoke Compartment

Back 2359

A space within a building enclosed by smoke barriers on all sides, including the top and bottom. [101, 2009]

Front 2360

Smoke Compartment

Back 2360

A space within a building enclosed by smoke barriers on all sides, including the top and bottom. [101:3.3]

Front 2361

Smoke Condensate

Back 2361

The condensed residue of suspended vapors and liquid products of incomplete combustion.

Front 2362

Smoke Control

Back 2362

A system that utilizes fans to produce pressure differences so as to manage smoke movement.

Front 2363

Smoke Control

Back 2363

A system that utilizes fans to produce pressure differences so as to manage smoke movement. [90A, 2009]

Front 2364

Smoke-Control Mode

Back 2364

A predefined operational configuration of a system or device for the purpose of smoke control.

Front 2365

Smoke-Control System

Back 2365

An engineered system that uses mechanical fans to produce pressure differences across smoke barriers to inhibit smoke movement.

Front 2366

Smoke-Control Zone

Back 2366

A space within a building enclosed by smoke barriers, including the top and bottom, that is part of a zoned smoke-control system.

Front 2367

Smoke Damper

Back 2367

A device within an air distribution system to control the movement of smoke.

Front 2368

Smoke Damper

Back 2368

A device within an air-distribution system to control the movement of smoke. [5000, 2009]

Front 2369

Smoke Damper

Back 2369

A device within an operating (dynamic) air distribution system to control the movement of smoke.

Front 2370

Smoke Damper

Back 2370

A device within the air distribution system to control the movement of smoke.

Front 2371

Smoke Damper

Back 2371

In merchant vessels, a duct-closure device intended to restrict the passage of smoke that is operated automatically or manually, including manual remote.

Front 2372

Smoke Detector

Back 2372

A device that detects visible or invisible particles of combustion.

Front 2373

Smoke Detector

Back 2373

A device that detects visible or invisible particles of combustion. [72,
2002]

Front 2374

Smoke Detector

Back 2374

A device that detects visible or invisible particles of combustion. [72,
2007]

Front 2375

Smoke Detector

Back 2375

A device that detects visible or invisible particles of combustion. (SIG-IDS)

Front 2376

Smoke Detector

Back 2376

A device that senses visible or invisible particles of combustion.

Front 2377

Smoke Developed Index

Back 2377

A comparative measure, expressed as a dimensionless number, derived from measurements of smoke obscuration versus time for a material tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Burning Materials.

Front 2378

Smoke Developed Index

Back 2378

A comparative measure, expressed as a dimensionless number, derived from measurements of smoke obscuration versus time for a material tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials; or UL 723, Standard for Test for Surface Burning Characteristics of Building Materials.

Front 2379

Smoke Developed Index

Back 2379

A comparative measure, expressed as a dimensionless number, derived from measurements of smoke obscuration vs. time.

Front 2380

Smoke Developed Index

Back 2380

A comparative measure expressed as a dimensionless number, derived from measurements of smoke obstruction versus time in ASTM E 84
Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials.

Front 2381

Smoke Door

Back 2381

The door component of a smoke door assembly.

Front 2382

Smoke Door Assembly

Back 2382

Any combination of a door, frame, hardware, and any other accessories that together restrict smoke movement through door openings by limiting the amount of air that can pass through the assembly.

Front 2383

Smoke Ejector

Back 2383

A mechanical device, similar to a large fan, that can be used to force heat, smoke, and gases from a post-fire environment and draw in fresh air.

Front 2384

Smoke Exhaust System

Back 2384

A mechanical or gravity system intended to move smoke from the smoke zone to the exterior of the building, including smoke removal, purging, and venting systems, as well as the function of exhaust fans utilized to reduce the pressure in a smoke zone.

Front 2385

Smoke Layer

Back 2385

The accumulated thickness of smoke below a physical or thermal barrier.

Front 2386

Smoke Layer

Back 2386

The accumulated thickness of smoke below a physical or thermal barrier. [92B, 2005]

Front 2387

Smoke Layer Boundary

Back 2387

An effective boundary centered in a transition zone between the dense portion of the smoke layer and the first indication of smoke.

Front 2388

Smoke Layer Interface

Back 2388

The theoretical boundary between a smoke layer and the smokefree air.

Front 2389

Smokeless Propellants

Back 2389

Solid propellants, commonly referred to as smokeless powders, used in small arms ammunition, cannons, rockets, or propellant-actuated devices.

Front 2390

Smoke Management System

Back 2390

An engineered system that includes all methods that can be used singly or in combination to modify smoke movement.

Front 2391

Smoke Management System

Back 2391

An engineered system that includes all methods that can be used singly or in combination to modify smoke movement. [92B, 2009]

Front 2392

Smoke Obscuration

Back 2392

The reduction of light transmission by smoke, as measured by light attentuation. [271, 2004]

Front 2393

Smoke Obscuration

Back 2393

The reduction of light transmission by smoke, as measured by light attenuation.

Front 2394

Smoke Obscuration

Back 2394

The reduction of light transmission by smoke, as measured by light attenuation. [271, 2004]

Front 2395

Smoke Obscuration

Back 2395

The reduction of light transmission by smoke, as measured by light attenuation). [271, 2004]

Front 2396

Smoke Partition

Back 2396

A continuous membrane that is designed to form a barrier to limit the transfer of smoke.

Front 2397

Smoke Partition

Back 2397

A continuous membrane that is designed to form a barrier to limit the transfer of smoke. [101, 2009]

Front 2398

Smokeproof Enclosure

Back 2398

An enclosure designed to limit the movement of products of combustion produced by a fire.

Front 2399

Smoke-Protected Assembly
Seating

Back 2399

Seating served by means of egress that is not subject to smoke accumulation within or under the structure.

Front 2400

Smoke Refuge Area

Back 2400

An area of the building separated from other spaces by fire resistance rated smoke barriers in which a tenable environment is maintained for the period of time that such areas might need to be occupied at the time of fire.

Front 2401

Smoke Removal

Back 2401

The control of smoke accumulation in the space where it is being generated by providing appropriate supply and exhaust to purge the smoke and prevent smoke movement to adjoining spaces.

Front 2402

Smoke Test

Back 2402

A procedure for ascertaining the tightness of a chimney and for detecting any cracks in a masonry chimney flue or deterioration or breaks in the integrity of a metal chimney flue, and that involves igniting a smoke bomb or building a smoky fire in a fireplace or solid fuel-burning appliance, covering the chimney termination, and checking for smoke escapage through the chimney walls.

Front 2403

Smoke Yield (ys)

Back 2403

The mass of smoke particulates generated per unit mass of fuel vaporized.

Front 2404

Smoke Zone

Back 2404

The smoke-control zone in which the fire is located.

Front 2405

Smoking

Back 2405

The use or carrying of a lighted pipe, cigar, cigarette, tobacco, or any other type of smoking substance.

Front 2406

Smoking Area

Back 2406

A designated area where smoking is permitted within a premises in which smoking is otherwise generally prohibited.

Front 2407

Smoldering

Back 2407

Combustion without flame, usually with incandescence and smoke.

Front 2408

Smoldering

Back 2408

Combustion without flame, usually with incandescence and smoke. [921, 2004]

Front 2409

Smooth Ceiling

Back 2409

A ceiling surface uninterrupted by continuous projections, such as solid joists, beams, or ducts, extending more than 100 mm (4 in.) below the ceiling surface. (SIG-IDS)

Front 2410

Smooth Ceiling

Back 2410

A continuous ceiling free from significant irregularities, lumps, or indentations.

Front 2411

Snap-Link

Back 2411

An auxiliary equipment system component; a self-closing, gated, load-bearing connector.

Front 2412

Software

Back 2412

A flexible fabric component of rope rescue equipment that can include, but is not limited to, anchor straps, pick-off straps, and rigging slings.

Front 2413

Software

Back 2413

A flexible fabric component of rope rescue equipment that can include, but is not limited to, anchor straps, pick-off straps, and rigging slings. [1670, 2004]

Front 2414

Software

Back 2414

A type of auxiliary equipment that includes but is not limited to anchor straps, pick-off straps, and rigging slings.

Front 2415

Softwood

Back 2415

Any coarse-grained wood such as fir, hemlock, spruce, or pine that is free from loose knots, wind shakes, or similar defects.

Front 2416

Soiled/Soiling

Back 2416

The accumulation of materials that are not considered hazardous materials, body fluids, or CBRN terrorism agents but that could degrade the performance of the ensemble or ensemble element.

Front 2417

Solar Cell

Back 2417

The basic photovoltaic device that generates electricity when exposed to light.

Front 2418

Solar Photovoltaic System

Back 2418

The total components and subsystems that, in combination, convert solar energy into electric energy suitable for connection to a utilization load.

Front 2419

SOLAS

Back 2419

The International Convention for the Safety of Life at Sea, 1974.

Front 2420

Soldier Shoring or Skip
Shoring

Back 2420

A shoring system that employs a series of uprights spaced at intervals with the exposed soil of the trench wall showing.

Front 2421

Solid Aerosol-Forming
Compound

Back 2421

A solid mixture of oxidant, combustible component and technical admixtures that produces a condensed aerosol upon actuation.

Front 2422

Solid Cooking Fuel

Back 2422

Any solid, organic, consumable fuel such as briquettes, mesquite, hardwood, or charcoal.

Front 2423

Solid Fuel

Back 2423

Wood, coal, and other similar organic materials and any combination of them.

Front 2424

Solid Fuel-Burning Appliance

Back 2424

A chimney-connected device that burns solid fuel designed for purposes of heating, cooking, or both.

Front 2425

Solid Fuel Cooking Equipment

Back 2425

Cooking equipment that utilizes solid fuel.

Front 2426

Solid Fuel Room Heater

Back 2426

A chimney-connected, solid fuel-burning room heater that is designed to be operated with the fire chamber closed.

Front 2427

Solid Fuel Room Heater

Back 2427

A chimney-connected, solid fuel-burning room heater that is designed to be operated with the fire chamber closed. [211, 2006]

Front 2428

Solid Joist Construction

Back 2428

Ceilings that have solid structural or solid nonstructural members projecting down from the ceiling surface for a distance of more than
100 mm (4 in.) and spaced at intervals of 0.9 m (3 ft) or less, center to center. (SIG-IDS)

Front 2429

Solid Masonry Construction

Back 2429

A bonded assembly of stones or solid masonry units.

Front 2430

Solid Masonry Unit

Back 2430

A masonry unit whose net cross-sectional area in every plane parallel
to the bearing surface is 75 percent or more of its gross cross-sectional
area measured in the same plane.

Front 2431

Solid Material

Back 2431

A material that has a melting point, decomposes, or sublimes at a temperature greater than 68°F (20°C).

Front 2432

Solid Propellant Rocket Motor

Back 2432

A rocket motor that contains a fuel and an oxidizer in a solid form and whose force or thrust is produced by the combustion of the fuel and oxidizer. [1122, 2002]

Front 2433

Solid-Propellant Rocket Motor

Back 2433

A rocket motor that contains a fuel and an oxidizer in solid form and whose force or thrust is produced by the combustion of the fuel and oxidizer.

Front 2434

Solid Shelving

Back 2434

Shelving that is solid, slatted, or of other construction, that is located in racks, and that obstructs sprinkler discharge down into the racks.

Front 2435

Solid Shelving

Back 2435

Solid shelving is fixed in place, slatted, wire mesh or other type of shelves located within racks. The area of a solid shelf is defined by perimeter aisle or flue space on all four sides. Solid shelves having an area equal to or less than 20 ft2 (1.9 m2) shall be defined as open racks. Shelves of wire mesh, slates, or other materials more than
50 percent open and where the flue spaces are maintained shall be defined as open racks.

Front 2436

Solid Shelving

Back 2436

Solid, slatted, and other types of shelving located within racks that obstruct sprinkler water penetration down through the racks.

Front 2437

Solid-State Phase-Control
Dimmer

Back 2437

A solid-state dimmer where the wave shape of the steady-state current does not follow the wave shape of the applied voltage, such that the wave shape is nonlinear.

Front 2438

Solid-State Sine Wave Dimmer

Back 2438

A solid-state dimmer where the wave shape of the steady-state current follows the wave shape of the applied voltage such that the wave shape is linear.

Front 2439

Solid Unit Load of a Nonexpanded Plastic (Either Cartoned or Exposed)

Back 2439

A load that does not have voids (air) within the load and that burns only on the exterior of the load; water from sprinklers might reach most surfaces available to burn.

Front 2440

Solvent

Back 2440

Any Class I flammable hydrocarbon liquid that has the ability to extract oils or fats from animal or vegetable material.

Front 2441

Solvent

Back 2441

A substance (usually liquid) capable of dissolving or dispersing another substance; a chemical compound designed and used to convert solidified grease into a liquid or semiliquid state in order to facilitate a cleaning operation.

Front 2442

Solvent Cleaning

Back 2442

The removal of material from an object by a solvent using processes such as immersing, soaking, spraying, agitating, or ultrasonics.

Front 2443

Solvent Distillation Unit

Back 2443

An appliance that distills a flammable or combustible liquid to remove contaminants and recover the liquid.

Front 2444

Solvent-Wet Nitrocellulose

Back 2444

A fibrous, granular, cubed, or flake-like nitrocellulose wetted with not less than 25 percent by weight alcohol, toluene, or other organic liquid having a flash point not lower than -4°C (25°F).

Front 2445

Soot

Back 2445

Black particles of carbon produced in a flame.

Front 2446

Soot Blower

Back 2446

A mechanical device for introducing steam, air, or water to clean heat-absorbing surfaces.

Front 2447

Sorbent

Back 2447

In a fluidized bed boiler, a constituent that reacts with and captures a pollutant or, more generally, a constituent that reacts with and captures another constituent.

Front 2448

Sound Detection

Back 2448

Recognition of an audio pattern indicative of unauthorized activity.

Front 2449

Soundstage

Back 2449

A building or a portion of a building, usually insulated from outside noise and natural light, used by the entertainment industry for the purpose of motion picture, television, or commercial productions.

Front 2450

Soundstage

Back 2450

A building or a portion of a building, usually insulated from outside noise and natural light, used by the entertainment industry for the purpose of motion picture, television, or commercial productions. [140, 2008]

Front 2451

Source Individual

Back 2451

Any individual, living or dead, whose blood, body fluids, or other potentially infectious materials has been a source of occupational exposure to a member.

Front 2452

Sources of Ignition

Back 2452

Appliances or equipment that, because of their intended modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable gas-air mixtures.

Front 2453

Sources of Ignition

Back 2453

Devices or equipment that, because of their modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable LP-Gas vapor-air mixtures when introduced into such a mixture or when such a mixture comes into contact with them, and that will permit propagation of flame away from them.

Front 2454

Sources of Ignition

Back 2454

Devices or equipment that, because of their modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable LP-Gas vapor-air mixtures when introduced into such a mixture or when such a mixture comes into contact with them, and that will permit propagation of flame away from them. [58, 2008]

Front 2455

Source Term Limitation

Back 2455

Limiting the source of radiation available for release.

Front 2456

Spa

Back 2456

A hydrotherapy unit, including, but not limited to, a therapeutic or hydrotherapy pool, whirlpool, or hot tub, with a maximum water depth of 48 in. (1220 mm) that might have a therapeutic use but is not drained, cleaned, or refilled for each individual use.

Front 2457

Space (Accessibility)

Back 2457

A definable area, such as a room, toilet room, hall, assembly area, entrance, storage room, alcove, courtyard, or lobby.

Front 2458

Spacing

Back 2458

A horizontally measured dimension related to the allowable coverage of fire detectors. (SIG-IDS)

Front 2459

Spalling

Back 2459

Chipping or pitting of concrete or masonry surfaces.

Front 2460

Span of Control

Back 2460

The maximum number of personnel or activities that can be effectively controlled by one individual (usually three to seven).

Front 2461

Spa or Hot Tub

Back 2461

A hydromassage pool, or tub for recreational or therapeutic use, not located in health care facilities, designed for immersion of users, and usually having a filter, heater, and motor-driven blower. It may be installed indoors or outdoors, on the ground or supporting structure, or in the ground or supporting structure. Generally, a spa or hot tub
is not designed or intended to have its contents drained or discharged after each use.

Front 2462

Spark

Back 2462

A moving particle of solid material that emits radiant energy due either to its temperature or the process of combustion on its surface. [654, 2006]

Front 2463

Spark

Back 2463

A moving particle of solid material that emits radiant energy due to either its temperature or the process of combustion on its surface.

Front 2464

Spark

Back 2464

A moving particle of solid material that emits radiant energy due either to its temperature or the process of combustion on its surface. [654, 2006] (SIG-IDS)

Front 2465

Spark Arrester

Back 2465

A device or method that minimizes the passage of airborne sparks and embers into a plenum, duct, and flue.

Front 2466

Spark Arresters

Back 2466

Screening material or a screening device attached to a chimney termination to prevent the passage of sparks and brands to the outside atmosphere.

Front 2467

Spark/Ember Detector

Back 2467

A radiant energy-sensing fire detector that is designed to detect sparks or embers, or both. These devices are normally intended to operate in dark environments and in the infrared part of the spectrum. [72,
2007]

Front 2468

Spark/Ember Detector

Back 2468

A radiant energy-sensing fire detector that is designed to detect sparks or embers, or both. These devices are normally intended to operate in dark environments and in the infrared part of the spectrum.
(SIG-IDS)

Front 2469

Spark/Ember Detector
Sensitivity

Back 2469

The number of watts (or the fraction of a watt) of radiant power from a point source radiator, applied as a unit step signal at the wavelength of maximum detector sensitivity, necessary to produce an alarm signal from the detector within the specified response time. (SIG-IDS)

Front 2470

Spark Extinguishing System

Back 2470

An extinguishing system in which the radiant energy of a spark or an ember is detected and the spark or ember is quenched.

Front 2471

Spark Gap

Back 2471

Any short air space between two conductors that are electrically insulated from or remotely electrically connected to each other.

Front 2472

Spark Protected

Back 2472

Electrical equipment enclosed in a tight case or protected by shields, screens, or insulation that contains sparks or prevents their emission.

Front 2473

Spark-Resistant Material

Back 2473

A material that is not prone to generate impact sparks under conditions of use.

Front 2474

Special Amusement Building

Back 2474

A building that is temporary, permanent, or mobile and contains a device or system that conveys passengers or provides a walkway along, around, or over a course in any direction as a form of amusement arranged so that the egress path is not readily apparent due to visual or audio distractions or an intentionally confounded egress path, or is not readily available due to the mode of conveyance through the building or structure.

Front 2475

Special Amusement Building

Back 2475

A building that is temporary, permanent, or mobile and contains a device or system that conveys passengers or provides a walkway along, around, or over a course in any direction as a form of amusement arranged so that the egress path is not readily apparent due to visual or audio distractions or an intentionally confounded egress path, or is not readily available due to the mode of conveyance through the building or structure. [101, 2009]

Front 2476

Special Atmosphere

Back 2476

A prepared gas or a gas mixture that is introduced into the work chamber of a furnace to replace air, generally to protect or intentionally change the surface of the material undergoing heat processing (heat treatment).

Front 2477

Special Buildings

Back 2477

For the purposes of this standard, a building used exclusively for the ethylene oxide sterilization process.

Front 2478

Special Cable

Back 2478

A cable intended for specific limited purposes.

Front 2479

Special Effect

Back 2479

A visual or audible effect used for entertainment purposes, often produced to create an illusion.

Front 2480

Special Event

Back 2480

Any activity outside of the normal daily operations.

Front 2481

Special Event

Back 2481

Any activity outside the normal daily operations.

Front 2482

Special Flood Hazard Area

Back 2482

The land area subject to flooding by the base flood, and depicted on the flood insurance rate map or other flood hazard map as Zone A, Zone AE, Zone A1-30, Zone A99, Zone AO, Zone AR, Zone AH, Zone V, Zone VE, Zone V1-30, or Zone VO. (See also 3.3.98, Coastal A Zone.)

Front 2483

Special Gas Vent

Back 2483

A gas vent for venting listed Category II, III, and IV gas appliances.

Front 2484

Special Industrial Explosive
Device (SIED)

Back 2484

An explosive power pack containing an explosive charge in the form of a cartridge or construction device.

Front 2485

Special Industrial Explosive
Material

Back 2485

Shaped materials, sheet forms, and various other extrusions, pellets, and packages of high explosives used for high-energy-rate forming, expanding, and shaping in metal fabrication and for dismemberment and reduction of scrap metal.

Front 2486

Special Industrial Explosives
Device

Back 2486

Explosive-actuated devices and propellant-actuated devices.

Front 2487

Special Inspection

Back 2487

Inspection performed by inspection agents under the direction of the registered design professional responsible for inspection to ensure conformance to the approved construction documents, not including inspection required by Chapter 1.

Front 2488

Special Inspection

Back 2488

Services provided by a qualified person, retained by the owner and approved by the authority having jurisdiction, who observes the installation and witnesses the pretesting and operation of the system or systems.

Front 2489

Special Instructions

Back 2489

A written directive between the responsible party for a protected premises and a monitoring station describing disposition and handling of signals.

Front 2490

Special Interest Area

Back 2490

Areas established and managed for their unique special feature.

Front 2491

Specialist Employee A

Back 2491

That person who is specifically trained to handle incidents involving chemicals or containers for chemicals used in the organization’s area of specialization.

Front 2492

Specialist Employee B

Back 2492

That person who, in the course of his or her regular job duties, works with or is trained in the hazards of specific chemicals or containers within the individual’s area of specialization.

Front 2493

Specialist Employee C

Back 2493

That person who responds to emergencies involving chemicals and/or containers within the organization’s area of specialization.

Front 2494

Specialized Agents

Back 2494

Fire-extinguishing agents, such as dry chemicals, dry powders, carbon dioxide, halon, and other such non-water-based agents.

Front 2495

Specialized Apparatus

Back 2495

A fire department emergency vehicle that provides support services at emergency scenes, including command vehicles, rescue vehicles, hazardous material containment vehicles, air supply vehicles,
electrical generation and lighting vehicles, or vehicles used to transport equipment and personnel.

Front 2496

Specialized Cleaning

Back 2496

Cleaning to remove hazardous materials or body fluids.

Front 2497

Specialized Equipment

Back 2497

Equipment that is unique to the rescue incident and made available.

Front 2498

Specialized Teams

Back 2498

Emergency response teams with specific skills and equipment that can be needed on the scene.