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Realizing and disseminating international reference time scales UTC, UTCr and TT(BIPM)

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  • Metrology areas

    • AUV: Acoustics, Ultrasound and Vibrations
      • CCAUV
      • BIPM contact: Dr Gianna Panfilo
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Metrology areas

  • AUV: Acoustics, Ultrasound and Vibrations
    • CCAUV
    • BIPM contact: Dr Gianna Panfilo
  • EM : Electricity and Magnetism
    • Metrologia: Focus on Metrology in Electricity and Magnetism
    • CCEM
    • BIPM contact: Dr Michael Stock
  • L: Length
    • CCL
    • BIPM contact: Dr Gianna Panfilo
  • M: Mass and related quantities
    • CCM
    • BIPM contact: Dr Hao Fang
  • PR: Photometry and Radiometry
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  • TF: Time and Frequency
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  • The 2018 revision of the SI
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