The certification scheme applies to seals made of solid vulcanised rubber, including
O-rings, gaskets and other designs, with welded joints as well as with protective coating.
In this guideline the rubber products are classified according to the following fields of application:
- Class I Cold water supply
- Class II Cold and intermittently hot water supply
- Class III Hot water circulation systems based on classification class 2 in ISO 10508
Kiwa carries out certifications and inspections of rubber seals for manufacturers of rubber compounds and rubber products, distributors and traders.