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
9 DECEMBER 2025
Key comparisons in Force
The Final reports and results of the key comparisons, CCM.F-K2.a.2 and APMP.M.F-K2.1, both linked to CCM.F-K2.a have recently been published in the KCDB. These comparisons on the measurement of Force were piloted by the National Physical Laboratory (NPL), United Kingdom and the Korea Research Institute of Standards and Science (KRISS), Republic of Korea, respectively, with participants from five state economies.
9 DECEMBER 2025
Key Comparison - CCRI(II)-K2.Tc-99
The Final report of the key comparison CCRI(II)-K2.Tc-99 has been approved and published in the KCDB. This is a comparison of activity concentration of the same Tc-99 solution in the field of measurement of radionuclides in which 16 state economies participated. Technetium-99 is a long-lived beta emitting fission product which occurs in radioactive waste and in the environment.
3 DECEMBER 2025
Key comparisons in Pressure - EURAMET
The Final report and results of the key comparison EURAMET.M.P-K4.2020 linked to CCM.P-K4.2012, have recently been published in the KCDB. This is a comparison of pressure measurements piloted by the Physikalisch-Technische Bundesanstalt (PTB), Germany, with participants from 5 state economies.
3 DECEMBER 2025
Electrochemical analysis - SIM
2 new and 5 revised CMCs in electrochemical analysis have been published in the KCDB for Argentina, Brazil, Colombia and Uruguay via SIM, in the field of Chemistry and Biology.
Statistics
Currently in the KCDB there are
259 CIPM MRA participants
1257 key comparisons
26527 CMCs
765 supplementary comparisons