The German reference office for food proficiency testing and reference materials (DRRR) is a service company for external quality assurance of laboratories of the food industry, the packaging / consumer goods /plastic industry and building industry.

We are an inspection body, reference material producer and proficiency testing (PT) provider. For a wide selection of proficiency testing schemes the DRRR is accredited acc. DIN EN ISO/IEC 17043 (please look into the appendix of our scope of accreditation). We offer many certified reference materials as well as advise on quality matters and quality assurance training in the laboratory and the production.
Additionally we provide advice to our customers in all question of validation of chemical-physical, microbiological, organoleptic and physical-mechanical analysis or statistical questions.

Our German and international costumers are companies of the food and dairy economy and state laboratories as well as food and veterinary inspection services. We provide advice to our costumers in all questions of validation of chemical, physical and sensory analysis or statistical problems.

We assist our customers to build quality management systems according to several international standard like ISO 9001, IFS, DIN EN ISO 17025, we also check if quality management systems are fit for audits and so on. Furthermore we are represented in various national and international committees like FIL/IDF, Eurolab and DGQ.

We work according to:

  • ISO Guide 31 / 35
  • DIN EN ISO 17034
  • DIN EN ISO/IEC 17020 / 17025 / 17043
  • ISO 13528


Our accreditation certificate are available for download here: