Draft Details

1.1 General

This Standard specifies requirements for acrylonitrile-butadiene-styrene (ABS) drain, waste, and vent (DWV) pipe, pipe fittings (including push-fit fittings), and accessories such as factory-assembled expansion joints, closet flanges, and backwater valves.

Notes:

Recommended installation practices for ABS-DWV pipe are specified in Annex A. Use of these recommended practices can help to ensure proper installation and optimum service life.

The maximum pressure used to test DWV installations should be 100 kPa (see Clause A.5.2).

This Standard does not specify requirements for venting of combustion gases. In Canada, ULC S636 specifies testing and marking requirements for pipe, fittings, and accessories intended for venting of combustion gases. In the U.S., UL 1738 specifies testing and marking requirements for pipe, fittings, and accessories intended for venting of combustion gases.

This Standard does not specify requirements for piping for venting of soil gases, including venting of radon gas. CAN/CGSB 149.11 provides guidance on acceptable pipe and fitting standards and marking requirements.

1.2 Terminology

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.