– 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:
Pioneering research improves the stability of timescale computation A paper entitled "A new approach to UTC calculation by means of the Kalman filter" has been published in Metrologia following a collaborative research project in the Time Department. Katharine Gebbie (1932-2016) We are sorry to report the death of Katharine Gebbie on 17 August 2016 at the age of 84. Dr Gebbie was a visionary physicist and senior government research administrator at NIST (USA). Her contributions to international metrology were highly regarded around the world and included membership of the CIPM from 1994 to 2000, where she served as Vice-President for three years. Leap second to be added to UTC at end of 2016 The IERS has announced that a leap second will be added to UTC at the end of 2016. Improved characterization of the BIPM secondary voltage standards used for bilateral comparisons The BIPM has improved the characterization of its secondary voltage standards used for bilateral comparisons of calibrations of Zener voltage standards (BIPM.EM-K11). First BIPM-NMIJ direct comparison of PJVSs at 10 V based on different technologies The BIPM's new transportable programmable Josephson voltage standard (PJVS) was used for the first time for an on-site comparison, at the NMIJ (Japan). Start of Metrology for the Safe Food and Clean Air Capacity Building Programmes Laboratory programmes for capacity building and knowledge transfer in Metrology for Safe Food and Clean Air have started in the BIPM Chemistry Department. NIM and BIPM organize Workshop on Standards for Protein and Peptide Therapeutics and Diagnostics Over 400 participants attended the "Protein and Peptide Therapeutics and Diagnostics: Research and Quality Assurance" workshop which was organized jointly by the NIM (China) and the BIPM.
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The BIPM's mission and role:

The mission of the BIPM is to ensure and promote the global comparability of measurements, including providing a coherent international system of units for:

  • Scientific discovery and innovation,
  • Industrial manufacturing and international trade,
  • Sustaining the quality of life and the global environment.

The unique role of the BIPM enables it to achieve its mission by developing the technical and organizational infrastructure of the International System of Units (SI) as the basis for the world-wide traceability of measurement results. This is achieved both through technical activities in its laboratories and through international coordination.