– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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About the BIPM
Metrology area:
Acoustics, Ultrasound and Vibration
Chemistry and Biology
Electricity and Magnetism
Ionizing Radiation
Mass and related quantities
Photometry and Radiometry
Time and Frequency

BIPM News:
Competition "Français et Sciences 2018" To promote the revision of the SI to a wider public, the BIPM and the LNE are partners in the competition "Français et Sciences" (French Language and Sciences) which this year focuses on the theme "Weights and Measures". The competition was launched on World Metrology Day (20 May 2018) and will end a few days before the 26th CGPM meeting (13-16 November 2018). The competition is open to French teachers in France and abroad, cultural centres, "Instituts français" or "Alliances françaises", libraries, museums or French language teaching centres. Significant progress on the BIPM Kibble balance The Physical Metrology Department is pleased to announce that the BIPM Kibble balance has been operating continuously and reliably under vacuum since mid-2018. As a consequence of the recent improvements, the measurement uncertainty of the Planck constant has been reduced from the 10-6 to the 10-7 level. CBKT "Train the trainer" course to support the implementation of ISO/IEC 17025:2017 Twenty three participants from 17 countries successfully completed the "Train the trainer": transitioning to ISO/IEC 17025:2017 in the CIPM MRA capacity building course. The two-day course, organized by the BIPM and sponsored by METAS, was held on 23-24 May 2018.
Latest reports and announcements:

The BIPM's mission and role:

  • Our vision is to be universally recognized as the world focus for the international system of measurement.

  • Our mission is to work with the NMIs of our Member States, the RMOs and strategic partners world-wide and to use the BIPM's international and impartial status to promote and advance the global comparability of measurements.