The Siempelkamp NIS Ingenieurgesellschaft mbH has been working for many years as a accredited inspection body for the customers and has had an accredited testing laboratory for two decades.
Certificates of qualification, supplier and safety qualifications certify NIS’s evidence of secure and reliable Testing – Calculation – Assessment:

Accredited inspection body for in-service inspections of power plant components in accordance with DIN EN ISO/IEC 17020:2012
Accredited testing laboratory in accordance with DIN EN ISO/IEC 17025:2018
Accredited testing laboratory in accordance with DIN EN ISO/IEC 17025:2018