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
16 OCTOBER 2026
Key comparison in radio frequencies - APMP
The results of the key comparison APMP.EM.RF-K8.CL linked to those of CCEM.RF-K8.CL, have recently been published on the KCDB. This is a comparison on power in 50 ohm coaxial lines, coordinated by the National Metrology Institute of Japan (NMIJ), with participants from 11 state economies.
16 OCTOBER 2026
Key comparison in dimensional metrology - APMP
The results of the key comparison APMP.L-K3.n01 have been published in the KCDB. This is a comparison of calibration of angle gauge blocks, coordinated by the National Institute of Metrology (NIMT), Thailand, with participants from 10 state economies.
15 OCTOBER 2026
Supplementary comparison in dimensional metrology - EURAMET
The Final report of the supplementary comparison EURAMET.L-S2.2.n01 has been published in the KCDB. This is a comparison on gauge block calibration by mechanical comparison, piloted by the Central Office of Metrology (AS METROSERT), Estonia in which 11 state economies participated.
15 OCTOBER 2026
Electrochemical analysis - EURAMET
A new and a revised CMCs in electrochemical analysis have been published in the KCDB for Czechia via EURAMET, in the field of Chemistry and Biology.
See all news
Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
No content
Currently in the KCDB there are
263 CIPM MRA participants
1286 key comparisons
26422 CMCs
783 supplementary comparisons