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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.

In case of multiple search, please use ADVANCED SEARCH.
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News
21 OCTOBER 2026
Dimensional metrology - APMP
A new CMC in dimensional metrology has been published in the KCDB for India via APMP, in the field of Length.
21 OCTOBER 2026
Inorganic analysis - SIM
4 new CMCs in inorganic analysis have been published in the KCDB for Argentina via SIM, in the field of Chemistry and Biology.
20 OCTOBER 2026
Dimensional metrology - EURAMET
2 revised CMCs in dimensional metrology have been published in the KCDB for Germany via EURAMET, in the field of Length.
19 OCTOBER 2026
Key comparison for gaseous standards of CO2
The most recent results issued from the continuous key comparison BIPM.QM-K2.b have been published in the KCDB, including the results obtained with E+E Elektronik, Austria in May 2026. This comparison underpins the capabilities of participants to value assign the amount fraction of CO2 in air with a method that ensures traceability of the measurements to the SI.
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Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
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Currently in the KCDB there are
263 CIPM MRA participants
1286 key comparisons
26437 CMCs
783 supplementary comparisons