(1) Soil-pipes, waste-pipes and vent-pipes and fittings of cast iron, copper, asbestos-cement or unplasticized polyvinyl chloride (U.P.V.C.) shall comply with the relevant standard specifications as follows-

a) S.A.B.S. 460 Copper and copper alloy tubing;

b) S.A.B.S. 721 Asbestos cement soil, waste , and ventilating pipes and fittings;

c) S.A.B.S 746 Cast iron soil, waste water, and ventilating pipes and fittings;

d) C.A.S. No K32 Unplasticized polyvinyl chloride (U.P.V.C.) soil, waste, and vent-pipes and fittings.

(2) Soil-pipes, waste-pipes , vent-pipes and associated fittings of galvanized steel, lead or copper shall conform to the requirements of Table II

TABLE II

(3) All installations of umplastized polyvinyl chloride pipes shall comply with S.A.B.S. 0112.