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The KCDB - the BIPM key comparison database – supports the CIPM MRA. The KCDB contains information on the internationally recognized Calibration and Measurement Capabilities (CMCs) for services available from the participating institutes, and the key and supplementary comparisons supporting these CMCs.
All data listed in the KCDB have been reviewed and approved within the CIPM Mutual Recognition Arrangement
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CIPM MRA PARTICIPANTS
CMC statistics
CMC statistics
Comparison statistics
Key comparisons by state or economy
Supplementary comparisons by state or economy
More comparison statistics
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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.
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Local frequency standard
Period meter
Period source
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Pulse width source
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Numerical search allows additional filtering on the measurand value and associated uncertainty. Empty minimum and maximum fields will be treated as negative and positive infinity, respectively.
Numerical search does not apply to Certified Reference Materials
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