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
5 MARCH 2024
Hardness - EURAMET
6 new and revised CMCs in Hardness measurement have recently been published in the KCDB for Italy via EURAMET, in the field of Mass and related quantities.
5 MARCH 2024
Time and Frequency - EURAMET
3 new and revised CMCs in frequency and time interval have recently been published in the KCDB for Spain via EURAMET, in the field of Time and Frequency.
1 MARCH 2024
Key Comparison - CCQM-K156.1
The Final report and results of CCQM-K156.1 have been published in the KCDB. This is a comparison of the mass fraction of linear forms for perfluoro-n-octanoic acid (L-PFOA) as acidic form and linear perfluoro-1-octane sulfonate (L-PFOS) as anion form in ground water. The comparison was coordinated by the National Metrology Institute of Türkiye (TÜBİTAK UME), in which 5 state economies namely, Türkiye, Germany, Russia, Finland and South Africa participated.
27 FEBRUARY 2024
PHOTOMETRY AND RADIOMETRY - APMP
2 new CMCs in Properties of materials - Colour reflected have recently been published in the KCDB for Thailand via APMP, in the field of Photometry and Radiometry.
Statistics
Currently in the KCDB there are
250 CIPM MRA participants
1173 key comparisons
25877 CMCs
686 supplementary comparisons