CAN/CSA-B131.1-M88 (R1999)

This National Standard of Canada is equivalent to International Standard ISO 8179-1985. 1. Scope and Field of Application 1.1 This Standard deals with the external coating of ductile iron pipe at the factory by zinc-coating. 1.2 This Standard includes specifications for the zinc-coating, application requirements, and coating inspection. Also included are requirements for the finishing layer applied to the zinc- coated surface. 1.3 Pipe to be coated shall comply with one of the following: ANSI/AWWA C151/A21.51, 1986 Ductile-iron pipe, centrifugally cast in metal molds or sand- lined molds for water or other liquids. ISO 2531, 1986 Ductile iron pipes, fittings and accessories for pressure pipe-lines.