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CIPM MRA PARTICIPANTS
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CIPM MRA PARTICIPANTS
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
13 MAY 2026
Key comparison in fluid flow - SIM
The Final report of the key comparison SIM.M.FF-K4.1.2017 has recently been published in the KCDB. This is a comparison of calibration of glassware and volume devices, coordinated by Centro Nacional de Metrologia (CENAM), Mexico with participants from 11 state economies.
11 MAY 2026
Key comparison in length - APMP
The Final report of the key comparison APMP.L-K3.n01 has been published in the KCDB. This is a comparison of calibration of angle blocks in the field of Length in which 10 state economies participated.
7 MAY 2026
Temperature - APMP
A new CMC in temperature measurements has been published in the KCDB for China via APMP, in the field of Thermometry.
6 MAY 2026
Supplementary comparison in temperature scale realisation - EURAMET
The Final report of the supplementary comparison EURAMET.T-S7 has been published in the KCDB. This is a comparison of measurement parameters required in radiance temperature scale realisation, between Istituto Nazionale di Ricerca Metrologica (INRIM), Italy and TÜBITAK Ulusal Metroloji Enstitüsü (UME), Türkiye.
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Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
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Currently in the KCDB there are
259 CIPM MRA participants
1268 key comparisons
26399 CMCs
770 supplementary comparisons