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P-902.2 Underground Sanitary Drains
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Underground building sanitary drainage within a building and beyond the
building wall shall conform to one of the materials and standards listed in Table P-902.2. Drainage systems for
corrosive industrial wastes shall be of acid-resisting cast iron or other material that is resistant to corrosion and
degradation for the concentrations of chemicals involved.
Note a: Not permitted underground within buildings nor within 10 feet of the building foundation
| MATERIAL | STANDARD |
|---|---|
| Acrylonitrile butadiene styrene (ABS) plastic pipe | ASTM D2661; ASTM F628: CSA B181.1 |
| Cast iron pipe | ASTM A 74; ASTM A 888; CISPI 301 |
| Coextruded composite ABS DWV schedule 40 IPS pipe (solid) | ASTM F 1488 |
| Coextruded composite ABS DWV schedule 40 IPS pipe (cellular core) | ASTM F 1488 |
| Coextruded composite PVC DWV schedule 40 IPS (solid) | ASTM F 891; ASTM F 1488 |
| Coextruded composite PVC DWV schedule 40 IPS (cellular core) | ASTM F 891; ASTM F 1488 |
| Coextruded composite PVC IPS-DR, PS140, PS200 DWV | ASTM F 1488 |
| Concrete pipe a | ASTM C 14; ASTM C 76; CSA A 257.1; CSA A 257.2 |
| Copper or copper-alloy tubing (Type K, L, M, or DWV) | ASTM B 75: ASTM B 88: ASTM B 251; ASTM B 306 |
| Ductile iron | AWWA C 151 |
| Polyolefin pipe | ASTM F 1412; CSA B181.3 |
| Polyvinyl chloride (PVC) plastic pipe (Type DWV) | ASTM D 2665; ASTM D 2949; CSA B181.2 |
| Stainless steel drainage systems, Type 316L | ASME A112.3.1 |
| Vitrified clay pipe a | ASTM C 4; ASTM C 700 |
Note a: Not permitted underground within buildings nor within 10 feet of the building foundation
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