Copper and Brass Pipe
(1) Copper pipe shall conform to ASTM B42, “Seamless Copper Pipe, Standard Sizes”.
(2) Brass pipe shall conform to ASTM B43, “Seamless Red Brass Pipe, Standard Sizes”.
Article 7.2.7.1. Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021.