Draft Details

Review start date:Jan 7, 2020
Review end date:Mar 7, 2020
Contact email:sue.ruscetta(at)csagroup.org
Draft Scope/Description:

1 Scope


This Standard specifies requirements for coextruded thermoplastic drain, waste, and vent (DWV) pipe with an outer layer of acrylonitrile-butadiene-styrene (ABS) and an inner layer of polyvinylchloride (PVC) or with outer and inner layers of ABS and a core of PVC.


Pipe manufactured in accordance with this Standard is intended to be used with fittings, accessories, and solvent cement that comply with the requirements of CSA B181.1.

Note: Recommended storage, handling, and installation practices for coextruded ABS/PVC-DWV pipe are provided in Annex A of CSA B181.1. Use of these recommended practices can help to ensure proper installation and optimum service life.


In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

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