– 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:
Agreement with the CEA List gives the BIPM access to the DOSEO platform for high-energy photon beams An agreement between the BIPM and the CEA List will allow the BIPM to operate the ongoing BIPM.RI(I)-K6 comparison for high-energy photon beams at the DOSEO platform for R&D in radiotherapy and imaging technologies. 50th anniversary of the adoption of the atomic definition of the second On 13 October 1967, the CGPM took the decision to adopt a new definition of the unit of time, the second, based on an atomic transition. The CCTF commemorated the 50th anniversary of this fundamental decision at its meeting in June 2017. BIPM appoints new Directors for the Ionizing Radiation and Time Departments The BIPM has appointed Dr Steven Judge as the Director of the Ionizing Radiation Department from 15 August 2017 and Dr Patrizia Tavella as the Director of the Time Department from 1 November 2017. APMP-DEC Leadership Training 2017 Applications for the BIPM-APMP joint CB&KT course 2017 APMP-DEC "Leadership training" are now open. The 4-day course is sponsored by the APMP Developing Economies' Committee (APMP-DEC) and Metrology-Enabling Developing Economies in Asia (MEDEA) project. Input data for the special CODATA-2017 adjustment See the papers published in Metrologia providing input data for the special CODATA-2017 adjustment. TÜBİTAK UME laboratory-based training initiative for young metrologists 2018 Applications for 2018 placements at TÜBİTAK UME are now open. The laboratory based training aims to equip young and inexperienced metrologists with valuable technical skills whilst pursuing a specific project of interest. This is the first of two calls organized with TÜBİTAK UME under the BIPM CB&KT Programme. Further countries to benefit from the BIPM's Capacity Building project on "Metrology for Clean Air" Visiting scientists from NPLI (India) and NMISA (South Africa) will be participating in the BIPM's "Metrology for Clean Air" CBKT project in 2017 and 2018, following receipt of additional sponsorship. CCM Pilot Study of future realizations of the kilogram The BIPM has carried out a CCM pilot comparison of mass calibrations based on methods that will be used to realize the kilogram after its redefinition. Metrology in support of the 2030 Agenda for Sustainable Development A new brochure "The role of metrology in the context of the 2030 Sustainable Development Goals" has been jointly developed by UNIDO, the BIPM and the OIML.
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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.