About us

The Testing Institute for Locks and Hardware (Prüfinstitut Schlösser und Beschläge Velbert (PIV)), an independent subsidiary of the Gütegemeinschaft Schlösser und Beschläge e.V. quality association, has offered practical testing since 1978.

In addition to mechanical product testing of locks and hardware as well as windows and doors, PIV also tests mechatronics. These tests ensure the maintenance of quality standards. PIV has been testing, certifying and inspecting locks, hardware, windows and doors for the past 40 years.

Moreover, PIV participates in domestic and international standardisation committees on these product groups. Test results are accepted worldwide thanks to accreditation in accordance with DIN EN ISO/IEC 17025. Furthermore, the Testing Institute’s PIV CERT is a product certification body in compliance with DIN EN ISO/IEC 17065, is a recognised inspection and certification body in accordance with the North Rhine-Westphalia State Building Code, a notified testing centre and certification body in compliance with the Construction Products Regulation and an approved testing centre for DIN CERTCO.