Before revision: Some widely used Standards in the United States are: ASME A112.6.3 – Floor and Trench Drains ASME A112.6.4 – Roof, Deck, and Balcony Drains ASME A112.18.1/CSA B125.1 – Plumbing Supply Fittings ASME A112.19.1/CSA B45.2 – Enameled Cast Iron and Enameled Steel Plumbing Fixtures ASME A112.19.2/CSA B45.1 – Ceramic Plumbing Fixture Canada In Canada, plumbing is a regulated trade requiring specific technical training and certification.
After revision: Some widely used Standards in the United States are: ASME A112.6.3 – Floor and Trench Drains ASME A112.6.4 – Roof, Deck, and Balcony Drains ASME A112.18.1/CSA B125.1 – Plumbing Supply Fittings ASME A112.19.1/CSA B45.2 – Enameled Cast Iron and Enameled Steel Plumbing Fixturess ASME A112.19.2/CSA B45.1 – Ceramic Plumbing Fixture Canada In Canada, plumbing is a regulated trade requiring specific technical training and certification.