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DIN EN 681-3:2006
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 3: Cellular materials of vulcanized rubber; German version EN 681-3:2000 + A1:2002 + A2:2005
This standard specifies requirements for materials used in vulcanised rubber seals of cellular materials for non pressurized drainage, sewerage and rainwater systems and non-pressure non portable water supply (Continuous flow up to 45°C)
Deutsches Institut für Normung [din]