The German Reference Office for Proficiency testing and Reference materials (DRRR) 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 German Reference Office for Proficiency testing and Reference materials 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.
Our proficiency tests are characterized by the following features: