Level 2

Front 1

The portion of a fixture drain between the trap weir and the vent pipe fitting

Back 1

Trap arm

Front 2

The pipe that connects the trap serving a fixture to another part of a drainage system

Back 2

Fixture drain

Front 3

A soil or waste pipe connected at its upstream end to the junction of two or more soil or waste pipes or to a soil or waste stack and connected at its downstream end to another branch, a sump, a soil or waste stack or a building drain

Back 3

Branch

Front 4

A pipe that is installed to carry storm water from a roof to a storm building drain or sewer or other place of disposal

Back 4

Leader

Front 5

A vertical soil or waste pipe that passes that passes through one or more storeys and includes any offset that is part of the stack

Back 5

Soil or waste stack

Front 6

A building drain that conducts sewage to a building sewer from the most upstream soil or waste stack branch or fixture drain serving a waste closet

Back 6

Sanitary building drain

Front 7

Building drain that conveys storm water and is connected at its upstream end to a leader, sump or catch basin and at its downstream end to a building sewer or a designated storm water disposal location

Back 7

Storm building drain

Front 8

Building drain that is intended to conduct sewage and storm water

Back 8

Combined building drain

Front 9

Building sewer that conducts sewage

Back 9

Sanitary building sewer

Front 10

Building sewer that conveys storm water

Back 10

Sanitary sewer

Front 11

Building sewer that is intended to conduct sewage and storm water

Back 11

Combined building sewer

Front 12

A fixture for the purpose of overflow protection that does not revive the regular discharge from other fixtures other than a trap primer

Back 12

Emergency floor drain

Front 13

Vent pipe that serves one fixture

Back 13

Individual vent

Front 14

Vent pipe that serves two fixtures and connects at the junction of the trap arm and fixture drain

Back 14

Dual vent

Front 15

Vent pipe that serves a number of fixtures and connects to the fixture drain of the list upstream

Back 15

Circuit vent

Front 16

Vent pipe that is used in conjunction with a circuit vent to provide additional circulation between drainage system and a vent system

Back 16

Relief vent

Front 17

Vent pipe that is an extension of a vertical section of a branch or fixture drain

Back 17

Continuous vent

Front 18

Vent pipe that is connected at its lower end to the junction of two or more vent pipe and at its upper end either stop another branch vent or to a stack vent, vent stack, vent header or terminates in open air

Back 18

Branch vent

Front 19

Obstructed vertical distance between lowest point of an indirectly connected soil or waste pipe and the flood level rim of the fixture into which it discharges

Back 19

Air break

Front 20

Vent pipe that is connected at its upper end to a vent header or that terminates in outside air and is connected at its lower end to the soil or waste stack at or before the lowest soil or waste pipe connections

Back 20

Vent stack

Front 21

Vent pipe that is connected at its upper end to a vent header or that terminates in outside air and is connected at its lower end to the soil or waste stack at or before the lowest soil or waste pipe connections

Back 21

Vent stack

Front 22

The obstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharges

Back 22

Air gap

Front 23

Vent pipe that is connected at its upper end to a vent header or that terminates in outside air and is connected at its lower end to the soil or waste stack at or before the lowest soil or waste pipe connections

Back 23

Vent stack

Front 24

The obstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharges

Back 24

Air gap

Front 25

Hit of measure based on the rate of discharge time of operation and frequency of use of a fixture that expresses the hydraulic load that is imposed by that fixture on the drainage system

Back 25

Fixture unit

Front 26

Vent pipe that is connected at its upper end to a vent header or that terminates in outside air and is connected at its lower end to the soil or waste stack at or before the lowest soil or waste pipe connections

Back 26

Vent stack

Front 27

The obstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharges

Back 27

Air gap

Front 28

Hit of measure based on the rate of discharge time of operation and frequency of use of a fixture that expresses the hydraulic load that is imposed by that fixture on the drainage system

Back 28

Fixture unit

Front 29

Vent pipe that connects any combination of stack vent or vent stacks to outside air

Back 29

Vent header

Front 30

Vent pipe that is connected at its upper end to a vent header or that terminates in outside air and is connected at its lower end to the soil or waste stack at or before the lowest soil or waste pipe connections

Back 30

Vent stack

Front 31

The obstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharges

Back 31

Air gap

Front 32

Hit of measure based on the rate of discharge time of operation and frequency of use of a fixture that expresses the hydraulic load that is imposed by that fixture on the drainage system

Back 32

Fixture unit

Front 33

Vent pipe that connects any combination of stack vent or vent stacks to outside air

Back 33

Vent header

Front 34

Soil or waste pipe that also serves as a vent Pipe and extends from the most downstream wet vented fixture connection to the most upstream fixture connections

Back 34

Wet vent

Front 35

A construction assembly that acts as a barrier against the spread of fire

Back 35

Fire separation

Front 36

Trap for a fixture that is integral with the support for the fixture

Back 36

Trap standard

Front 37

Trap for a fixture that is integral with the support for the fixture

Back 37

Trap standard

Front 38

Merry at an angle of less than 45 degrees with the horizontal

Back 38

Nominally horizontal

Front 39

Trap for a fixture that is integral with the support for the fixture

Back 39

Trap standard

Front 40

Merry at an angle of less than 45 degrees with the horizontal

Back 40

Nominally horizontal

Front 41

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 41

Clear water waste

Front 42

Trap for a fixture that is integral with the support for the fixture

Back 42

Trap standard

Front 43

Merry at an angle of less than 45 degrees with the horizontal

Back 43

Nominally horizontal

Front 44

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 44

Clear water waste

Front 45

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 45

Stack vent

Front 46

Trap for a fixture that is integral with the support for the fixture

Back 46

Trap standard

Front 47

Merry at an angle of less than 45 degrees with the horizontal

Back 47

Nominally horizontal

Front 48

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 48

Clear water waste

Front 49

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 49

Stack vent

Front 50

The piping that connects the ends of 2 pipes that are parallel

Back 50

Offset

Front 51

Trap for a fixture that is integral with the support for the fixture

Back 51

Trap standard

Front 52

Merry at an angle of less than 45 degrees with the horizontal

Back 52

Nominally horizontal

Front 53

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 53

Clear water waste

Front 54

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 54

Stack vent

Front 55

The piping that connects the ends of 2 pipes that are parallel

Back 55

Offset

Front 56

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 56

Public use

Front 57

Trap for a fixture that is integral with the support for the fixture

Back 57

Trap standard

Front 58

Merry at an angle of less than 45 degrees with the horizontal

Back 58

Nominally horizontal

Front 59

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 59

Clear water waste

Front 60

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 60

Stack vent

Front 61

The piping that connects the ends of 2 pipes that are parallel

Back 61

Offset

Front 62

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 62

Public use

Front 63

Length along the centre line of the pipe and fitting

Back 63

Developed length

Front 64

Trap for a fixture that is integral with the support for the fixture

Back 64

Trap standard

Front 65

Merry at an angle of less than 45 degrees with the horizontal

Back 65

Nominally horizontal

Front 66

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 66

Clear water waste

Front 67

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 67

Stack vent

Front 68

The piping that connects the ends of 2 pipes that are parallel

Back 68

Offset

Front 69

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 69

Public use

Front 70

Length along the centre line of the pipe and fitting

Back 70

Developed length

Front 71

Access proved in drainage and venting system to provide for cleaning and inspection

Back 71

Cleanout

Front 72

Trap for a fixture that is integral with the support for the fixture

Back 72

Trap standard

Front 73

Merry at an angle of less than 45 degrees with the horizontal

Back 73

Nominally horizontal

Front 74

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 74

Clear water waste

Front 75

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 75

Stack vent

Front 76

The piping that connects the ends of 2 pipes that are parallel

Back 76

Offset

Front 77

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 77

Public use

Front 78

Length along the centre line of the pipe and fitting

Back 78

Developed length

Front 79

Access proved in drainage and venting system to provide for cleaning and inspection

Back 79

Cleanout

Front 80

Roof drain that restricts the floor of storm water into the storm drainage system

Back 80

Flow control roof drain

Front 81

Trap for a fixture that is integral with the support for the fixture

Back 81

Trap standard

Front 82

Merry at an angle of less than 45 degrees with the horizontal

Back 82

Nominally horizontal

Front 83

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 83

Clear water waste

Front 84

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 84

Stack vent

Front 85

The piping that connects the ends of 2 pipes that are parallel

Back 85

Offset

Front 86

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 86

Public use

Front 87

Length along the centre line of the pipe and fitting

Back 87

Developed length

Front 88

Access proved in drainage and venting system to provide for cleaning and inspection

Back 88

Cleanout

Front 89

Roof drain that restricts the floor of storm water into the storm drainage system

Back 89

Flow control roof drain

Front 90

No directly connected

Back 90

Indirectly connected

Front 91

Trap for a fixture that is integral with the support for the fixture

Back 91

Trap standard

Front 92

One way valve designed to allow air to enter the drainage system when the pressure in the plumbing system is less than atmospheric pressure

Back 92

Air admittance valve

Front 93

Merry at an angle of less than 45 degrees with the horizontal

Back 93

Nominally horizontal

Front 94

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 94

Clear water waste

Front 95

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 95

Stack vent

Front 96

The piping that connects the ends of 2 pipes that are parallel

Back 96

Offset

Front 97

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 97

Public use

Front 98

Length along the centre line of the pipe and fitting

Back 98

Developed length

Front 99

Access proved in drainage and venting system to provide for cleaning and inspection

Back 99

Cleanout

Front 100

Roof drain that restricts the floor of storm water into the storm drainage system

Back 100

Flow control roof drain

Front 101

No directly connected

Back 101

Indirectly connected

Front 102

Trap for a fixture that is integral with the support for the fixture

Back 102

Trap standard

Front 103

One way valve designed to allow air to enter the drainage system when the pressure in the plumbing system is less than atmospheric pressure

Back 103

Air admittance valve

Front 104

Receptacle, appliance apparatus or other device that discharges sewage or clear water waste and includes a floor drain

Back 104

Fixture

Front 105

Merry at an angle of less than 45 degrees with the horizontal

Back 105

Nominally horizontal

Front 106

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 106

Clear water waste

Front 107

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 107

Stack vent

Front 108

The piping that connects the ends of 2 pipes that are parallel

Back 108

Offset

Front 109

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 109

Public use

Front 110

Length along the centre line of the pipe and fitting

Back 110

Developed length

Front 111

Access proved in drainage and venting system to provide for cleaning and inspection

Back 111

Cleanout

Front 112

Roof drain that restricts the floor of storm water into the storm drainage system

Back 112

Flow control roof drain

Front 113

No directly connected

Back 113

Indirectly connected

Front 114

Trap for a fixture that is integral with the support for the fixture

Back 114

Trap standard

Front 115

One way valve designed to allow air to enter the drainage system when the pressure in the plumbing system is less than atmospheric pressure

Back 115

Air admittance valve

Front 116

Receptacle, appliance apparatus or other device that discharges sewage or clear water waste and includes a floor drain

Back 116

Fixture

Front 117

Any liquid waste other than clear water waste or storm water

Back 117

Sewage

Front 118

Merry at an angle of less than 45 degrees with the horizontal

Back 118

Nominally horizontal

Front 119

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 119

Clear water waste

Front 120

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 120

Stack vent

Front 121

The piping that connects the ends of 2 pipes that are parallel

Back 121

Offset

Front 122

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 122

Public use

Front 123

Length along the centre line of the pipe and fitting

Back 123

Developed length

Front 124

Access proved in drainage and venting system to provide for cleaning and inspection

Back 124

Cleanout

Front 125

Roof drain that restricts the floor of storm water into the storm drainage system

Back 125

Flow control roof drain

Front 126

No directly connected

Back 126

Indirectly connected

Front 127

Trap for a fixture that is integral with the support for the fixture

Back 127

Trap standard

Front 128

Means at an angle of less than 45 degrees with the horizontal

Back 128

Nominally horizontal

Front 129

Receptacle, appliance apparatus or other device that discharges sewage or clear water waste and includes a floor drain

Back 129

Fixture

Front 130

Any liquid waste other than clear water waste or storm water

Back 130

Sewage

Front 131

Fitting or decide that is installed to permit storm water to discharge into a leader

Back 131

Roof drain

Front 132

Merry at an angle of less than 45 degrees with the horizontal

Back 132

Nominally horizontal

Front 133

Waste water with impurity levels that will not be harmful to health and may include cooling water and condensate drainage from refrigeration and air conditioning equipment and cooled condensate from steam heating system but does not include storm water

Back 133

Clear water waste

Front 134

Vent pipe that connects the top of a soil or waste stack to a vent header or outside air

Back 134

Stack vent

Front 135

The piping that connects the ends of 2 pipes that are parallel

Back 135

Offset

Front 136

Fixtures in general washrooms of schools gyms hotels bars public comfort stations and other installations

Back 136

Public use

Front 137

Length along the centre line of the pipe and fitting

Back 137

Developed length

Front 138

Access proved in drainage and venting system to provide for cleaning and inspection

Back 138

Cleanout

Front 139

Roof drain that restricts the floor of storm water into the storm drainage system

Back 139

Flow control roof drain

Front 140

No directly connected

Back 140

Indirectly connected

Front 141

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 141

Building trap

Front 142

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 142

Building trap

Front 143

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 143

Yoke vent

Front 144

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 144

Building trap

Front 145

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 145

Yoke vent

Front 146

Privately owned plant doe the treatment and a disposal of sewage

Back 146

Private sewage disposal system

Front 147

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 147

Building trap

Front 148

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 148

Yoke vent

Front 149

Privately owned plant doe the treatment and a disposal of sewage

Back 149

Private sewage disposal system

Front 150

Intervals between 2 successive floor levels, including mezzanine floor that contains plumbing fixtures or between floor level and roof

Back 150

Storeys

Front 151

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 151

Building trap

Front 152

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 152

Yoke vent

Front 153

Privately owned plant doe the treatment and a disposal of sewage

Back 153

Private sewage disposal system

Front 154

Intervals between 2 successive floor levels, including mezzanine floor that contains plumbing fixtures or between floor level and roof

Back 154

Storeys

Front 155

Device or method that prevents backflow

Back 155

Backflow preventer

Front 156

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 156

Building trap

Front 157

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 157

Yoke vent

Front 158

Privately owned plant doe the treatment and a disposal of sewage

Back 158

Private sewage disposal system

Front 159

Intervals between 2 successive floor levels, including mezzanine floor that contains plumbing fixtures or between floor level and roof

Back 159

Storeys

Front 160

Device or method that prevents backflow

Back 160

Backflow preventer

Front 161

Group of plumbing fixture installed in the same room consisting of one domestic type lavatory one water closest and either one bathtub with or without shower or one head shower

Back 161

Bathroom groups

Front 162

Trap that is installed in a building drain or building sewer to prevent circulation of air between the drainage system and the public use

Back 162

Building trap

Front 163

Vent pipe that is connected at its lower end to a soil or waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack

Back 163

Yoke vent

Front 164

Privately owned plant for the treatment and a disposal of sewage

Back 164

Private sewage disposal system

Front 165

Intervals between 2 successive floor levels, including mezzanine floor that contains plumbing fixtures or between floor level and roof

Back 165

Storeys

Front 166

Device or method that prevents backflow

Back 166

Backflow preventer

Front 167

Group of plumbing fixture installed in the same room consisting of one domestic type lavatory one water closest and either one bathtub with or without shower or one head shower

Back 167

Bathroom groups

Front 168

Top edge at which water can overflow from a fixture or device

Back 168

Flood level rim

Front 169

Lowest horizontal piping including any vertical offset that conducts sewage, clear water waste or storm water by gravity to a building sewer

Back 169

Building drain

Front 170

Pipe that is installed underground to intercept and convey subsurface water

Back 170

Subsoil drainage pipe

Front 171

Pipe that is installed underground to intercept and convey subsurface water

Back 171

Subsoil drainage pipe

Front 172

Fixtures in residences and apartment in private bathrooms of hires and in similar installation in other buildings for one family or an individual

Back 172

Private use

Front 173

Pipe that is installed underground to intercept and convey subsurface water

Back 173

Subsoil drainage pipe

Front 174

Fixtures in residences and apartment in private bathrooms of hires and in similar installation in other buildings for one family or an individual

Back 174

Private use

Front 175

Assembly of pipes fittings fixtures traps and appurtenances that is used to convey sewage clear water waste or storm water to a public sewer or private sewage disposal system but does not include sus soil drainage pipes

Back 175

Drainage systems

Front 176

Pipe that is installed underground to intercept and convey subsurface water

Back 176

Subsoil drainage pipe

Front 177

Fixtures in residences and apartment in private bathrooms of hotels and in similar installation in other buildings for one family or an individual

Back 177

Private use

Front 178

Assembly of pipes fittings fixtures traps and appurtenances that is used to convey sewage clear water waste or storm water to a public sewer or private sewage disposal system but does not include subsoil drainage pipes

Back 178

Drainage systems