This document specifies general requirements for the competence and impartiality of proficiency testing (PT) providers and consistent operation of all proficiency testing schemes. This document can be used as a basis for specific technical requirements for particular fields of application.

Users of proficiency testing schemes, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies and others can use these requirements in confirming or recognizing the competence of proficiency testing providers.

• Year of Declaration: 2025
• Reference: ISO/IEC 17043: 2023
• Number of Pages: 51
• Code: GYS 500
• Version: First Revison
• ICS Number: 03.120.20