This International Standard specifies general requirements for the competence of providers of proficiency testing schemes and for the development and operation of proficiency testing schemes. These requirements are intended to be general for all types of proficiency testing schemes, and they can be used as a basis for specific technical requirements for particular fields of application.

• Year of Declaration: 2013
• Reference: ISO/IEC 17043: 2010
• Number of Pages: 39
• Code: GYS 500
• Version:
• ICS Number: 03.120.20.1