Historical
IAPMO PS 053-2011e1
Grooved Mechanical Pipe Couplings and Grooved End Fittings
This Standard covers grooved mechanical pipe couplings and grooved-end fittings and gaskets intended for use with copper, ductile iron, cast iron, PVC, steel, and stainless steel pipe and specifies requirements for materials, physical characteristics, performance tests, and markings.
International Association of Plumbing and Mechanical Officials [iapmo]