CSA B137.1:23

1 Scope 1.1 General This Standard covers polyethylene (PE) pipe and tubing, and fittings for use in transporting potable or non-potable water, or other applications such as wastewater forcemains, reclaimed water, conduit, golf or commercial irrigation, or water-based ground source geothermal systems, in either buried or above- ground installations. 1.2 Requirements This Standard specifies requirements for materials, quality of work, dimensions, sustained pressure, environmental stress cracking, and markings. 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.