1.1 This specification covers chlorinated poly(vinyl chloride) (CPVC) Schedule 80 pipe fittings. Included are requirements for materials, workmanship, dimensions, and burst pressure. N This specification covers chlorinated poly(vinyl chloride)(CPVC) Schedule 80 pipe fittings intended for use with Iron Pipe Size (IPS) outside-diameter plastic pipe. Materials shall be tested and shall conform to the requirements for materials, workmans