– 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
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.
Deadline extended: 4 February 2015. 6th International Time Scale Algorithms Symposium and Tutorials:
The 6th International Time Scale Algorithms Symposium will take place at the BIPM on 9–11 September 2015. More information on the webpage. Deadline for comments on the Committee Drafts of the revised GUM: 3 April 2015:
The Committee Drafts of the revised GUM, the JCGM 100:201X, Evaluation of measurement data – Guide to uncertainty in measurement and of its companion the JCGM 110:201X Evaluation of measurement data – Examples of uncertainty evaluation, are being circulated for comments through the eight JCGM member organizations (BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAP and OIML), and through the National Metrology Institutes (NMIs). Each organization and NMI is kindly requested to collate the comments it receives to avoid duplication and send them to the JCGM Chairman by 3 April 2015. The comments will be discussed during the BIPM Workshop on Measurement Uncertainty (15-16 June 2015). Prof. Ian Mills awarded an OBE for services to chemistry and metrology :
Prof. Ian Mills, FRS, former President of the CCU was made an Officer of the Order of the British Empire (OBE) in the UK's 2015 New Year honours. The award is in recognition of Professor Mills' services to Chemistry and Metrology. Prof. Mills stepped down from the role of CCU President at the end of 2013 after 17 years of service. The CIPM appointed him as an honorary member of the CCU in March 2014. New Associate of the CGPM: Azerbaijan:
As of 1 January 2015, the Republic of Azerbaijan is an Associate of the CGPM. BIPM Workshop on Measurement Uncertainty: 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; the closing date is 6 February 2015.