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CIPM MRA PARTICIPANTS
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CIPM MRA PARTICIPANTS
Calibration and Measurement Capabilities – CMCs
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Key and supplementary comparisons
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News
6 FEBRUARY 2026
Key Comparison in the measurement of radionuclides  - CCRI
The results of the key comparison CCRI(II)-K2.Tc-99 have been published in the KCDB. This is a comparison of activity concentration of Technetium-99 (Tc-99) solution in the field of Ionizing Radiation, Section II (Measurement of Radionuclides) co-ordinated by National Physical Laboratory (NPL), United Kingdom with 16 participants. Tc-99 is a long-lived beta emitting fission product which occurs in radioactive waste and in the environment.
6 FEBRUARY 2026
Key Comparison in Electrochemistry - EURAMET
The results of the key comparison EURAMET.QM-K170 have been published in the KCDB. This is a comparison on the measurement of electrolytic conductivity, co-ordinated by the Physikalisch-Technische Bundesanstalt (PTB), Germany, and included participants from 11 state economies.
4 FEBRUARY 2026
Key comparison in organic analysis - CCQM
The Final report and results of the key comparison CCQM-K184 have been published in the KCDB. This is a comparison in organic analysis on low-polarity analytes in abiotic matrix (PAHs in sediments) in the field of Chemistry and biology, piloted by the National Institute of Metrology (NIM), China in which 17 state economies participated.
4 FEBRUARY 2026
Key Comparison in Electrochemistry - CCQM
The Final report and results of CCQM-K73.2018.4 linked to CCQM-K73.2018 have been published in the KCDB. This is a comparison on the determination of the concentration of H+ in hydrochloric acid solution. The comparison was coordinated by Physikalisch-Technische Bundesanstalt (PTB), Germany, with participants from 3 state economies.
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Statistics
AFRIMETS APMP COOMET EURAMET GULFMET SIM
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Currently in the KCDB there are
258 CIPM MRA participants
1263 key comparisons
26516 CMCs
766 supplementary comparisons