Nfpa-1126 Appendix Definitions

Front 1

Alternating Current (ac)

Back 1

An electrical current that reverses direction in a circuit at regular intervals. Almost all electrical current supplied from wall outlets or sockets is this current.

Front 2

Black Match

Back 2

A fuse made from thread impregnated with black powder and used for igniting pyrotechnic devices.

Front 3

Blank Cartridge

Back 3

A cartridge constructed from a cartridge case equipped with a percussion primer and filled with various loads of smokeless powder or other propellant. Weapons using this often are used in conjunction with bullet hits.

Front 4

Bridgewire

Back 4

A fine wire that either heats up or explodes when an electric current is applied. It is used to fire pyrotechnic devices.

Front 5

Bullet Effect

Back 5

An effect intended to simulate a slug from a weapon as it strikes a person or object.

Front 6

Bullet Hit

Back 6

A small explosive charge attached to a person's clothing or body, or to an inanimate object, to simulate a slug from a weapon as it strikes a person or object."

Front 7

Colored Smoke

Back 7

An aerosol of special dyestuffs of chemical reactants dispersed by pyrotechnic heat or explosion.

Front 8

Color Pot

Back 8

A tube containing pyrotechnic materials. It produces a colored flame when ignited.

Front 9

Concussion Flashpowder

Back 9

Flashpowder intended to be used in a concussion mortar to produce a loud concussive effect.

Front 10

Consumer Fireworks (formerly known as “Common Fireworks”)

Back 10

Any small fireworks device designed primarily to produce visible effects by combustion that complies with the construction, chemical composition, and labeling regulations of the U.S. Consumer Product Safety Commission, as set forth in Title 16, Code of Federal Regulations, Parts 1500 and 1507. Some small devices designed to produce audible effects are included, such as whistling devices, ground devices containing 50 mg (0.8 grains) or less of explosive composition (salute powder), and aerial devices containing 130 mg (2 grains) or less of explosive composition (salute powder) per explosive unit. Consumer fireworks are classed as Explosives 1.4G and described as Fireworks UN0336 by the U.S. Department of Transportation."

Front 11

Day Box

Back 11

A portable magazine used for the immediate storage of pyrotechnics.

Front 12

Deflagration

Back 12

A rapid chemical reaction in which the output of heat is sufficient to enable the reaction to continue and accelerate without input of heat from another source. This is primarily a surface phenomenon, with most reaction products flowing away from the unreacted material along the surface at less than supersonic velocity. The effect of a _______ under confinement is an explosion. Confinement of the reaction increases pressure, rate of reaction, and temperature and, in some cases, can cause transition into a detonation."

Front 13

Det Cord

Back 13

A flexible detonating cord. It is a highly explosive material encased in a plastic-covered cord resembling a clothesline.

Front 14

Detonation

Back 14

An extremely rapid chemical reaction in which the pressure generated is sufficient to cause the formation of a shock wave, which causes the reaction to continue. This is a phenomenon with reaction products flowing in the direction of unreacted materials at supersonic velocity. The effect of this with or without confinement is an explosion."

Front 15

Detonator

Back 15

Any device containing an initiating or primary explosive that is used for initiating detonation. The term includes, but is not limited to, electric blasting caps (instantaneous and delay types), blasting caps for use with safety fuses, detonating cord delay connectors, and nonelectric caps that use a detonating cord, shock tube, or any other replacement for electric legwires. Thsi also could be an explosive or device initiated by a primer and used to initiate another explosive that is less sensitive and larger."

Front 16

Direct Current (dc)

Back 16

An electrical current that flows in one direction. Most frequently, This current is supplied by a battery."

Front 17

"Display Fireworks (formerly known as ""Special Fireworks"")"

Back 17

Large fireworks articles designed to produce visible or audible effects for entertainment purposes by combustion, deflagration, or detonation. This term includes, but is not limited to, salutes containing more than 130 mg (2 grains) of explosive composition (salute powder), aerial shells containing more than 60 g (2.1 oz) of total pyrotechnic and explosive composition, and other display pieces that exceed the limit for classification as consumer fireworks. This is described as Fireworks UN0335 and classed as Explosives 1.3G by the U.S. Department of Transportation."

Front 18

Explosion

Back 18

The rapid production of hot gases at a high pressure as the result of a chemical reaction and the sudden release of the energy to cause strong dynamic stresses in the surroundings. The term usually refers to the effects of a detonation of initiating explosives and high explosives but also applies to the effect of a deflagrating propellant explosive in certain circumstances such as heavy confinement. The term also describes a mechanical phenomenon in which failure of the container results in a sudden release of pressure from within a vessel.

Front 19

Explosive

Back 19

Any chemical compound, mixture, or device whose primary or common purpose is to function by explosion. The term includes, but is not limited to, dynamite, black powder, pellet powder, initiating explosives, detonators, safety fuses, squibs, detonating cords, igniter cords, and igniters. This term includes any material determined to be within the scope of Title 18, United States Code, Chapter 40, ""Importation, Manufacture, Distribution, and Storage of Explosive Materials,"" and also includes any material classified as 1.1, 1.2, or 1.3 by the Hazardous Materials Regulations of the U.S. Department of Transportation."

Front 20

Fireworks

Back 20

Any composition or device for producing a visible, audible, or both visible and audible effect by combustion, deflagration, or detonation and that meets the definition set forth by the U.S. Department of Transportation, Title 49, Code of Federal Regulations, ""Hazardous Materials Regulations."""

Front 21

First Fire

Back 21

The ignited mixture used with pyrotechnic devices and loaded in direct contact with the main pyrotechnic charge. A pyrotechnic _______ mixture is compounded to produce a high temperature and hot slag. The mixture is readily ignitable and capable of igniting the underlying pyrotechnic charge.

Front 22

Lycopodium

Back 22

The spores produced by the genus of mosses. This powdery, organic, yellow material can be agitated and dispersed mechanically into a cloud and then ignited by a spark, pilot flame, or electrical heating device. Although not a pyrotechnic material, this material is used by special effects operators to produce fire effects or in conjunction with other pyrotechnics to create a special effect."

Front 23

Nonelectric Detonator

Back 23

A detonator that does not need electric energy to function.

Front 24

Photoflash Flashpowder

Back 24

A loose pyrotechnic mixture that yields a very large amount of light for a small fraction of a second on exploding.

Front 25

Quick Match

Back 25

Black match that is encased in a loose-fitting paper sheath. Although exposed black match burns slowly, this burns extremely rapidly and almost instantaneously. This is used in fuses for aerial shells and for simultaneous ignition of a number of pyrotechnic devices, such as lances in a ground display piece."

Front 26

Safety Fuse

Back 26

A flexible cord containing an internal burning medium by which fire or flame is conveyed at a constant and relatively uniform rate from the point of ignition to the point of use.

Front 27

Smoke Pot

Back 27

A pyrotechnic device used to create smoke during a production.

Front 28

Soft Detonator

Back 28

A detonator with a higher velocity than a bullet hit, but with no metallic elements or jacket. It is essentially a blasting cap without a metal jacket."

Front 29

"Sonic Flash (Salute Powder, Extra-Fast Flash, Concussion Flashpowder)"

Back 29

Flashpowder specifically formulated to produce a loud concussive effect."

Front 30

Sparkle Flashpowder

Back 30

A flashpowder that produces a bright flash of light and a shower of sparks when ignited.

Front 31

Sparkle Pot

Back 31

A pyrotechnic device intended to contain and control the discharge of sparkle flashpowder.

Front 32

Squib

Back 32

A device consisting of an electric match plus a base pyrotechnic charge. It usually is contained in a thin metal tube and often has a hole or slit to direct the flame produced when fired. These are regulated in a manner similar to blasting caps. They are not usually used in fireworks, although electric matches often are incorrectly called by this name."

Front 33

Stars

Back 33

Small masses of pyrotechnic compounds that are projected from aerial shells, mines, or roman candles. They burn while in the air, producing color or streamer effects."

Front 34

Theatrical Flashpowder

Back 34

A pyrotechnic material intended for use in theatrical shows. It produces a flash of light when ignited. This typicaly burns more slowly than salute powder and also might produce a shower of sparks. It is not intended to produce a loud report.