(1) All swer-pipes and drain-pipes and fittings of glazed earthenware, asbestos-cement, pitch-impregnated fibre, concrete or U.P.V.C shall comply with the relevant standard specifications as follows-

a) C.A.S. No A16 Earthenware drain and sewer pipes and fittings;

b) S.A.B.S. 676 Reinforced concrete pressure pipes;

c) C.A.S. No. A17 Concrete pipes ( non pressure)

d) S.A.B.S 819 Asbestos cement sewer-pipes;

e) S.A.B.S. 921 Pitch-impregnated fibre pipes and couplings;

f) C.A.S. No. K28 Unplasticized polyvinyl chloride (U.P.V.C. ) sewer and drain pipes and fittings.

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