The Ontario Building Code | Crosslinked Polyethylene Pipe and Fittings

7.2.5.7. Crosslinked Polyethylene pipe and Fittings

(1) Cross-linked polyethylene pipe and its associated fittings used in hot and cold potable watersystems shall be certified to CAN/CSA-B137.5, "Crosslinked Polyethylene (PEX) Tubing Systems for pressure Applications".