1. General criteria for the operation of testing laboratories, EN 45001, CEN/CENELEC, Brussels 1989.
2. Accreditation for medical Laboratories EAL-G-25/ECLM-1, Den Haag 1997.
3. Quality management in the medical laboratory, ISO/DIS 15189, Geneva 2000.
4. General requirements for the technical competence of testing laboratories ISO/IEC Guide 25, Geneva 1990.
5. General requirements for the competence of testing and calibration laboratories, ISO/IEC 17025, Geneva 1999.