Approval Elastomer guideline
The Elastomer Guideline regulates requirements for elastomers that come into contact with drinking water. Accordingly, the focus of approval in accordance with the Elastomer Guideline is on avoiding undesirable influences on drinking water. It is published by the Federal Environment Agency.
The elastomer guideline primarily defines requirements for the migration behavior of the materials, whereby the limit values are defined as the maximum tolerable concentration at the tapping point.
In addition, there are maximum limits for influencing the smell and taste of the water.
In order to obtain approval in accordance with the Elastomer Guideline, the manufacturer must provide the exact material composition and have the test carried out by an accredited institute in accordance with the Guideline.
#1 Definition Approval Elastomer Guideline
#2 Meaning of the approval according to the Elastomer Guideline
The Elastomer Guideline is legally binding in Germany. The approval was previously also referred to as KTW approval. The EPDM, NBR and VMQ material groups in particular are on the positive list.