Certificates

CERTIFICATES & QUALITY MARKS

Standards for vitrified clay pipes are specified by EN 295, parts 1 to 7. In addition, our products are produced and inspected in compliance with the ZP WN 295 certification programme, which in part includes significantly higher demands than EN 295.

Our own internal monitoring, voluntary external monitoring and usage rights for various quality labels – as well as, for example, the quality labels of the MPA, NRW, Benor, NF and SKG-IKOB – represent special certification of the quality of our entire product range, the high standards of which go beyond the legal and normative stipulations of the EN 295 European standard.

More importantly, these quality labels create trust for the customer, who can rely unreservedly on the assured attributes of our products. At the same time, they document the existence and use of an ISO 9001:2015-compliant quality management system.