Specifies requirements for materials used in vulcanized rubber seals for cold potable water supply (up to 50 鳦), hot potable and non-potable water supply (up to 110 鳦), and drainage, sewerage and rainwater systems (continuous flow up to 45 鳦 and inter
SANS 50681-1:1996 history
2002SANS 50681-1:1996 Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber