– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
Search facility:


| Site map | News | Contact us
Consultative Committee for Units (CCU)
The CCU was set up in 1964, to replace the "Commission for the System of Units", set up by the CIPM in 1954.

Present activities concern matters related to the development of the International System of Units (SI), preparation of successive editions of the SI brochure, and advice to the CIPM on matters concerning units of measurement.
 
President:
Prof. J. Ullrich
President of the PTB
Physikalisch-Technische Bundesanstalt
Germany
 
 
Executive Secretary:
Dr C. Thomas
Bureau International des Poids et Mesures
France

Contact form:  


On the possible future revision of the International System of Units, the SI
Resolution 1 of the CGPM (2011)

President:    Prof. J. Ullrich
President of the PTB
Physikalisch-Technische Bundesanstalt
Germany
Executive Secretary:    Dr C. Thomas
Bureau International des Poids et Mesures
France
Member(s):  
  • Centro Español de Metrología [CEM], Madrid
  • Commission internationale de l'éclairage [CIE]
  • Committee on Data for Science and Technology [CODATA Task Group on Fundamental Constants]
  • Federal Agency on Technical Regulating and Metrology [Rosstandart], Moscow
  • International Astronomical Union [IAU]
  • International Commission on Radiation Units and Measurements [ICRU]
  • International Electrotechnical Commission [IEC]
  • International Federation of Clinical Chemistry and Laboratory Medicine [IFCC]
  • International Organization for Standardization [ISO]
  • International Organization of Legal Metrology [OIML]
  • International Union of Pure and Applied Chemistry [IUPAC]
  • International Union of Pure and Applied Physics [IUPAP]
  • National Institute of Metrology [NIM], Beijing
  • National Institute of Standards and Technology [NIST], Gaithersburg
  • National Metrology Institute of Japan, AIST [NMIJ/AIST], Tsukuba
  • National Physical Laboratory [NPL], Teddington
  • Physikalisch-Technische Bundesanstalt [PTB], Braunschweig
  • Personal member(s):   
  • Dr T.J. Quinn CBE FRS
  • Prof. M. Himbert
  • Honorary member(s):   • Prof. I.M. Mills FRS
    Note:

      The Director of the BIPM is a member, ex officio, of all Consultative Committees.