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CIPM MRA PARTICIPANTS
All data listed in the KCDB have been reviewed and approved within the CIPM Mutual Recognition Arrangement
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CIPM MRA PARTICIPANTS
CMC statistics
Calibration and Measurement Capabilities – CMCs
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Key and supplementary comparisons
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Added keywords act as an additional filter. Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. Placing quotation marks (") before and after the search word, e.g. "word", will allow for exact matches.

In case of multiple search, please use ADVANCED SEARCH.
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News
27 JUNE 2025
Dimensional metrology - AFRIMETS
The first 4 CMCs in dimensional metrology have been published in the KCDB for Zambia via AFRIMETS, in the field of Length.
27 JUNE 2025
Radio frequency measurements - AFRIMETS
1 new CMC in radio frequency measurements has been published in the KCDB for Egypt via AFRIMETS, in the field of Electricity and Magnetism.
27 JUNE 2025
Radio frequency measurements - SIM
3 new and 4 revised CMCs in radio frequency measurements have been published in the KCDB for Argentina via SIM, in the field of Electricity and Magnetism.
27 JUNE 2025
AC voltage - APMP
2 revised CMCs in AC voltage measurements have been published in the KCDB for Korea via APMP, in the field of Electricity and Magnetism.
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Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
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Currently in the KCDB there are
257 CIPM MRA participants
1227 key comparisons
26222 CMCs
738 supplementary comparisons