KS A ISO/IEC GUIDE 43-2-2002(2012) Proficiency testing by interlaboratory comparisons-Part 2:Selection and use of proficiency testing schemes by laboratory accreditation bodies
2013KS A ISO/IEC GUIDE 43-2:2013 Proficiency testing by interlaboratory comparisons-Part 2:Selection and use of proficiency testing schemes by laboratory accreditation bodies
0000 KS A ISO/IEC GUIDE 43-2-2002(2012)
2002KS A ISO/IEC GUIDE 43-2:2002 Proficiency testing by interlaboratory comparisons-Part 2:Selection and use of proficiency testing schemes by laboratory accreditation bodies