DRRR GmbH - Deutsches Referenzbüro für Ringversuche und Referenzmaterialien / German reference office for round robin tests and reference materials

The "Deutsches Referenzbüro für Ringversuche und Referenzmaterialien" (DRRR GmbH) is an ISO/IEC 17043 accredited proficiency testing provider and provider of certified reference material. As a leading service company for external quality assurance, we are internationally operating and offer all aspects of quality assurance from one single source.

For more than 15 years, the DRRR has been offering services in the field of quality assurance. With more than 500 proficiency tests performed per year, the DRRR is one of the largest providers worldwide. In addition to these many years of experience, you also benefit from our high level of competence in the field of statistics combined with technical expertise.

We offer laboratories from the processing industry, as well as official and private laboratories, all aspects of quality assurance from a single source. Our focus is on food, consumer goods, packaging, building materials, plastics, textiles, as well as microbiological tests in these areas.