Covers fittings for use with PVC pipes grades: PVC 5, PVC 8.5 and PVC 13.5. Classifies PVC fittings into 2 types, i.e. injection moulding and heat fabrication. Specifies grades, classes, types, size designations, dimensions and tolerances, thickness. Prescribes requirements for general characteristics, stress-relieving, sulphuric acid resistance, opacity, effect on water (for fittings for use with drinking water pipe only), short-term and long-term hydrostatic pressure resistance. Includes marking, labelling, sampling and criteria for conformity, testing.