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.

For the certification of rubber products for applications in contact with drinking water in The Netherlands.

For more information please contact Product Manager Monique Beltman (tel +31 70 4144554, monique.beltman@kiwa.nl), or rubber@kiwa.nl, or our local Kiwa office in your country.

For a direct quotation please fill in and submit the Application Form Rubber.