1. ISO, IEC 17043 (2023) Conformity assessment—general requirements for the competence of proficiency testing providers. ISO, Geneva
2. ISO, IEC 17025 (2017) General requirements for the competence of testing and calibration laboratories. ISO, Geneva
3. ISO 17034 (2016) General requirements for the competence of reference material producers. ISO, Geneva
4. ISO 15189 (2022) Medical laboratories—requirements for quality and competence. ISO, Geneva
5. ISO 9001 (2015) Quality management systems—requirements. ISO, Geneva