CSA B137.2:23

1 Scope 1.1 General This Standard covers rigid polyvinylchloride (PVC) injection-moulded fittings that have gasketed joints and are intended for use in pressure applications such as water mains, water service piping, process piping, and fire lines. Fittings covered by this Standard are suitable for use with PVC pipes having outside diameter dimensions of cast iron pipe. Only one pressure rating, 1620 kPa at 23 °C (PC 235), is covered in this Standard and is suitable for use with compatible outside diameter PVC pipes having a dimension ratio (DR) of 18 or more. Note: Where PVC fittings are to be used in applications other than those involving water, the manufacturer should be consulted. 1.2 Requirements This Standard specifies requirements for materials, quality of work, long-term performance under sustained hydrostatic pressure, dimensions, markings, and injection-moulding quality. 1.3 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.