» Publications relating to accreditation of Proficiency Testing Providers

To gain accreditation, a proficiency testing provider must be fully conversant and comply with the relevant standard, which is:

ISO/IEC 17043:2010 Conformity assessment - General requirements for proficiency testing
UKAS Publications
TPS 41 UKAS Policy on Metrological Traceability (Edition 5, October 2019)
Relevant Mandatory European and International Publications
ILAC-P10:07/2020 ILAC Policy on Traceability of Measurement Results - implementation date July 2021