This Standard provides requirements for rigid polyvinyl chloride (PVC) injection-moulded fittings intended for use in pressure applications such as water mains, water service piping, process piping, and fire lines. Fittings covered by this Standard are suitable for use with PVC pipes having outside diameter (OD) dimensions of cast iron pipe. Only one pressure rating, 1620 kPa (Class 150), is included that is suitable for use with compatible OD PVC pipes having a dimension ration (DR) of 18 or more. The fittings have gasketed joints. This Standard includes requirements for materials, quality of work, dimensions, marking, long-term performance under sustained hydrostatic pressure, and injection-moulding quality.