The Ontario Building Code | Polypropylene Pipe and Fittings
7.2.5.15. Polypropylene pipe and Fittings
(1) Polypropylene pipe and fittings used for hot and cold potable water systems shall conform to CAN/CSA-B137.11, "Polypropylene (PP-R) pipe and Fittings for pressure Applications".
7.2.6. Ferrous pipe and Fittings