– 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

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.

25th meeting of the CGPM: 18-20 November 2014
BIPM Workshop on Measurement Uncertainty: 15-16 June 2015:
The BIPM is organizing a workshop on Measurement Uncertainty on 15 – 16 June 2015. The deadline for abstract submission has been extended to 15 January 2015. Applicants for participation in the workshop are invited to register online and the closing date is 6 February 2015. Explaining and promoting the Quality Infrastructure:
The Donor Committee for Enterprise Development (DCED) has published a report "Leveraging the Impact of Business Environment Reform: The Contribution of Quality Infrastructure – Lessons from Practice", which presents an aggregated collection of knowledge and experience in donor-supported quality infrastructure reform in developing and transition countries. Timetable for future revision of the International System of Units:
A joint CCM/CCU roadmap towards the redefinition of the SI has been published. Call for tenders: Closed-cycle cryo-cooler based cryostat:
The BIPM is issuing a call for tenders for a closed-cycle cryo-cooler based cryostat.