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ISO 4633:2015
Rubber seals - Joint rings for water supply, drainage and sewerage pipelines - Specification for materialsstandard by International Organization for Standardization, 06/01/2015
ISO 4633:2015 specifies requirements for materials used in vulcanized rubber seals for the following:
a) cold drinking-water supplies (up to 50 C);
b) drainage, sewerage, and rainwater systems (continuous flow up to 45 C and intermittent flow up to 95 C).
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