Inter-laboratory Comparisons and Their Roles in Accreditation

Results of interlaboratory comparisons and proficiency tests are a significant parameter for the calibration testing laboratories assuring quality test results performed by those laboratories. If want to demonstrate that they operate according management system, technically competent can produce valid in calibrations perform their customers, general requirements must meet defined ISO/IEC 17025:2017. This international standard forms basis laboratory accreditation. Clause 7.7 Ensuring validity this requires establish procedures instructions other technical documentation needed ensure perform. Participation inter-laboratory comparison or programs is one most important these activities. provides an opportunity independently evaluate analytical performance, both absolute terms comparison, techniques. In study, information about accreditation activities given importance studies explained measurements made