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IAPMO PS 53-2020
Grooved Mechanical Pipe Couplings and Grooved Fittings
This Standard covers grooved mechanical pipe couplings and grooved fittings and gaskets for pressure applications intended for use with copper, ductile iron, cast iron, PVC, CPVC, steel, and stainless steel pipe and specifies requirements for materials, p
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International Association of Plumbing and Mechanical Officials [iapmo]