ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO/IEC Guide 43-1:1997 Proficiency testing by interlaboratory comparisons - Part 1: Development and operation of proficiency testing schemes
ISO/IEC Guide 43-2:1997 Proficiency testing by interlaboratory comparisons - Part 2: Selection and use of proficiency testing schemes by laboratory accreditation bodies
GOST R ISO 13528-2010 history
2010GOST R ISO 13528-2010 Statistical methods. Using in proficiency testing by interlaboratory comparison tests