International Organization for Standardization / Consultative Committee / Consultative Committee for Photometry / Commission for the System of Units / Consultative Committee for Standards of Ionizing Radiation / CIPM / International Electrotechnical Commission / French Government / Consultative Committee for Mass and Related Quantities / Consultative Committee for Time and Frequency / Consultative Committee for the Definition of the Metre / Consultative Committee for Photometry and Radiometry / Consultative Committee for Thermometry / Consultative Committee for the Definition of the Second / Consultative Committees / Consultative Committee for Amount of Substance / Consultative Committee for Ionizing Radiation / Committee for Acoustics / Ultrasound and Vibration / Consultative Committee for Length / Consultative Committee for Electricity / Consultative Committee for Units / Consultative Committee for Electricity and Magnetism / /