Draft Details

Designation:CSA B181.0:27
Source:CSA
Review start date:Feb 6, 2026
Review end date:Apr 7, 2026
Contact email:kristina.veri(at)csagroup.org
Draft Scope/Description:

1.1 Scope of the B1800 compendium

This Compendium specifies requirements for compounds and for manufactured pipe and pipe fittings, the relevant test methods, and marking requirements, and applies to thermoplastic nonpressure piping including

a) drain, waste, and vent pipe and pipe fittings;

b) sewer and storm pipe and pipe fittings; and

c) accessories such as factory-assembled expansion joints, closet flanges, backwater valves, and cleanouts.

Notes:

This Compendium 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 Compendium 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 Scope of this Standard

This Standard specifies definitions, general requirements for compounds and for manufactured pipe and pipe fittings, the relevant test methods, and marking requirements.

1.3 Intent of this Standard

This Standard is intended to be used in conjunction with one of the other Standards in the CSA B181 or CSA B182 series to form a complete Standard for a particular product.

1.4 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. 

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