Calibration and Measurement Capabilities – CMCs
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Key and supplementary comparisons
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News
2 NOVEMBER 2026
DC voltage, Josephson standards - BIPM
The final report and results of the key comparison BIPM.EM-K10, obtained with Istituto Nazionale di Ricerca Metrologica (INRIM) Italy, have been published in the KCDB. This is a continuous bi-lateral comparison of DC voltage using Josephson standards at a nominal value of 1 V and 10 V in which 31 state economies have participated so far.
30 OCTOBER 2026
Key comparison in fluid flow - APMP
The results of the key comparison APMP.M.FF-K3.2020 linked to CCM.FF-K3.2011 have been published in the KCDB. This is a comparison on air speed measurements using an ultrasonic anemometer as transfer standard, in the field of Mass and related quantities, coordinated by the Industrial Technology Research Institute/Center for Measurement Standards (CMS/ITRI), Chinese Taipei, in which seven state economies participated.
30 OCTOBER 2026
Key comparison on the activity of radionuclide Tc-99 - BIPM
The first results of the continous key comparison BIPM.RI(II)-K5.Tc-99 including those obtained with LNE-LNHB, France in 2024 and NRC, Canada in 2026 have been published in the KCDB. This is a comparison of activity measurements of the radionuclude Tc-99, coordinated by the BIPM.
29 OCTOBER 2026
Key comparisons on air kerma and absorbed dose to water in Co-60 - BIPM
The Final reports and latest results from the continuous key comparisons BIPM.RI(I)-K1 and BIPM.RI(I)-K4 have been published in the KCDB, including results obtained with Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel (LNE-LNHB), France.
Statistics
Currently in the KCDB there are
263 CIPM MRA participants
1288 key comparisons
26446 CMCs
783 supplementary comparisons