to BIPM.org
CIPM MRA PARTICIPANTS
All data listed in the KCDB have been reviewed and approved within the CIPM Mutual Recognition Arrangement
Menu
Login
CIPM MRA PARTICIPANTS
Calibration and Measurement Capabilities – CMCs
?
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.
Advanced search
Key and supplementary comparisons
?
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.
Advanced search
News
5 NOVEMBER 2026
Key comparison in dimensional metrology - CCL
The results of the key comparison CCL-K3.n01 have been published in the KCDB. This is a comparison on angle standards coordinated by the National Research Council (NRC), Canada in which 10 state economies participated. 
3 NOVEMBER 2026
Key comparison in thermometry - SIM
The Final report of the key comparison SIM.T-K9.4 linked to CCT-K9 has been published in the KCDB. This is a bilateral comparison on the realization of the ITS-90 of the triple point of Argon between NIST, United States and NRC, Canada.
3 NOVEMBER 2026
Fluid flow - EURAMET
2 new and 1 revised CMCs in fluid flow have been published in the KCDB for Germany, Italy and Portugal via EURAMET, in the field of Mass and related quantities.
3 NOVEMBER 2026
DC voltage - APMP
A new CMC in DC voltage has been published in the KCDB for Indonesia via APMP, in the field of Electricity and Magnetism.
See all news
Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
No content
Currently in the KCDB there are
263 CIPM MRA participants
1290 key comparisons
26459 CMCs
783 supplementary comparisons