All EQA schemes offered by INSTAND are accredited according to DIN EN ISO/IEC 17043:2010.
The testing of proficiency test samples to ensure stability is carried out in the reference laboratory of INSTAND.
It can also be subcontracted to the following laboratories:
- Medical Laboratories Düsseldorf GbR, Nordstraße 44, 40477 Düsseldorf
- Hemostaseological Outpatient Clinic/Hemophilia Centre, Department of Transfusion Medicine, Cell Therapeutics and Hemostaseology Klinikum Großhadern, Ziemsenstr. 1, 80336 Munich, Germany.
INSTAND is one of the three reference institutions appointed by the German Medical Association (Bundesärztekammer) and thus responsible for the organisation of EQA schemes for quality control in medical laboratories.