The Profile of the Test Centre< Back

The Test Centre at TZW is accredited for over 200 different product standards according to DIN EN ISO 17025 and performs initial testing of products and materials in contact with drinking water. With these type tests manufacturers can obtain DVGW certification by DVGW Cert GmbH or other European certifiers. Basis of testing are DVGW technical standards and international and national product standards of ISO, CEN and DIN-DVGW. AtTZW’s Test Centre the functional and mechanical tests as well as the hygienic requirements are examined. Therefore it is ensured that drinking water on its way to the customer remains with high quality and the products used are fit for purpose in terms of safety, environmental protection and hygienic requirements.

The staff of the Test Centre is actively involved in national and international standardisation processes. Thus developments especially in the European context are actively supported.

In the following sections we will inform you about our work areas and current issues. Our designated competent coworkers are available for detailed questions on each test and test requirements.

We are located at the waterwork “Durlacher Wald”. Please follow the information for visitors.


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Head of the Test Centre

Dr. Josef Klinger
Wasserwerkstr. 4
76137 Karlsruhe

Tel.: +49 721 93163-10
Fax +49 721 93163-99
E-MailVisitenkarte downloaden

Deputy Head of the Test Centre

Dr.-Ing. Robertino TurkovićTel.: +49 721 93163-13
Fax +49 721 93163-99
E-MailVisitenkarte downloaden


Ülkü Roßbach

Tel.: +49 721 93163-21
Fax +49 721 93163-99
E-MailVisitenkarte downloaden