Quality assurance

Not just a promise. But rather standard practice.

Quality is not just a promise at Rieger but rather standard practice. This is defined by the combined certificate in accordance with DIN EN ISO 9001:2008 and DIN EN ISO 14001:2015. This not only safeguards the process flows and the way our employees work, but environmental protection is also monitored in accordance with the certification. The last aspect in particular is another element in our corporate philosophy. The in-house waste water plant underlines the responsibility that Rieger takes in this respect.

Your requirements. Our aspirations.

We are happy to meet your order-specific quality requirements. Other DIN and automotive standards pose challenges for us that we meet conscientiously to your satisfaction.

Micrometre accuracy. Our test and measuring processes.

Our surfaces are closely examined in our in-house laboratory and measuring facility. The laboratory is equipped with state-of-the-art test equipment that ensures the process baths are in the best condition at all times and all harmful chemicals are neutralised through the waste water plant. The measuring facility is equipped with modern technology that enables the thickness of the surfaces to be determined with micrometre accuracy. The following processes and equipment are used for the tests:

In the measuring facility

  • X-ray fluorescence device
  • Eddy current process
  • Magnetic inductive process
  • Micrographs (external)

In the laboratory

  • Titimetric measurement analyses
  • pH value
  • Conductivity
  • Aerometer

Excellent Quality

at Rieger Metallveredlung

We place great value on high quality and sustainable work at Rieger. That's why we are already certified and have received awards in many areas.

Conformity confirmation

Energy (SpaEfV)

Conformity confirmation Energy (SpaEfV)

ISO certificate


ISO certificate

ISO certificate


ISO certificate

Quality mark

for tank technology

Certificate quality mark tank technology

Certificate of delivery

Green electricity

Certificate of delivery green electricity



Award Silverstars