Documente ready for download - click here!


Drinking water approval for materials

Materials which are used in the drinking water sector, must have a surface which excludes an unwanted surface fouling by microorganism. This is very important for the hygienic-microbiological point of view. It is necessary that in addition to various technical and mechanical requirement also be guaranteed the hygienic..

According to DVGW worksheet W 270, products and materials are tested on the migration of chemical substances and growth of microorganism. The German association for gas and water (DVGW) define high standards on this. Elastomer is most suitable material for drinking water. This approach offers no microorganisms.


  • ERHARD GmbH & Co. KG
  • Meeboldstra├če 22
  • 89522 Heidenheim, Germany