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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.

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News
24 MARCH 2025
Temperature - GULFMET
The first CMC in temperature measurements has been published in the KCDB for United Arab Emirates via GULFMET, in the field of Thermometry.
25 MARCH 2025
Key Comparison - Electrochemistry
The Final report and results of the key comparison CCQM-K170 have recently been published in the KCDB. This is a comparison on the measurement of electrolytic conductivity, coordinated by the National Institute of Metrology (NIM) China, and included participants from 18 state economies.
25 MARCH 2025
CCQM key comparison in trace elements analysis
The Final report of the key comparison CCQM-K144 has been published in the KCDB. This is a comparison of analysis of trace elements as impurities in alumina powder in the field of Inorganic chemistry in which four state economies participated.
24 MARCH 2025
Temperature and Humidity - EURAMET
47 new and 27 modified CMCs covering temperature and humidity measurements, have recently been published for Austria, Bosnia and Herzegovina, Czechia, Estonia, France, Greece, Hungary, Ireland, Norway, Poland, Serbia, Spain and Switzerland via EURAMET, in the field of Thermometry.
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Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
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Currently in the KCDB there are
258 CIPM MRA participants
1218 key comparisons
26145 CMCs
724 supplementary comparisons