Testing of Rubber and Elastomers; Accelerated Test of Ageing in Elastomers by Exposure to Ozone; Determination of Ozone Concentration (Reference Method)— 3 стр.
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber; German version EN 681-1:1996— 14 стр.