Kleb-, Dicht- und Beschichtungsstoffe
The following materials are available as pdf-files.
Guideline on the hygienic assessment of organic materials in contact with drinking water (KTW Guideline) (released by the German Federal Environment Agency), (March 2016)
Guideline for hygienic assessment of organic coatings in contact with drinking water (Coating Guideline) (March 2016)
Schlauchempfehlung des Umweltbundesamtes (German)