Proficiency testing activities is used as part of the assessment process to assess the ability of laboratories to perform competently calibration/tests/inspection for which accreditation is held1. Other than satisfying the ISO/IEC 170252 requirement, it is also an important tool in evaluating the comparability of tests and calibration results among laboratories.

NMIM proficiency testing activities include Proficiency Testing and Measurement Audit program. Proficiency Testing is an interlaboratory comparisons in which the test item is distributed sequentially among two or more participating laboratories and each laboratory’s result are compared to assigned (reference) values established by NMIM. Measurement Audit is a comparison whereby a well characterised test item is sent to a single laboratory and the results are compared to a reference value established by NMIM.

To enquire about NMIM proficiency testing activities kindly contact us on +603 8778 1600 or email at This email address is being protected from spambots. You need JavaScript enabled to view it.



  1. SAMM Policy 4 (SP4) - Policy for Participation in Proficiency Testing Activities
  2. ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories