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CIPM MRA PARTICIPANTS
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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
11 JUNE 2025
Humidity - SIM
2 new CMCs in humidity measurements have recently been published in the KCDB for the United States via SIM, in the field of Thermometry.
10 JUNE 2025
CCQM key comparison - Organics
The Final report and results of the key comparison CCQM-K133 have been published in the KCDB. This is a key comparison for determining the mass fraction of Phthalate esters in PVC, piloted by the National Institute of Metrology (NIM), China with participants from 9 state economies.
10 JUNE 2025
Electricity and Magnetism - APMP
6 revised CMCs in Impedance up to the MHz range and AC voltage, current and power have recently been published in the KCDB for Chinese Taipei via APMP, in the field of Electricity and Magnetism.
5 JUNE 2025
Key comparison in voltage - BIPM
The most recent results of the continous key comparison BIPM.EM-K11 have been published in the KCDB including the results obtained with Service de la Métrologie Belge (SMD), Belgium. This is a continuous bi-lateral comparison of voltage measurements at 1 V and 10 V in the field of Electricity and Magnetism in which 26 state economies have participated.
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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
26160 CMCs
737 supplementary comparisons