– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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Gas metrology

    International equivalence of gas standards for air quality and greenhouse gas monitoring

    The Chemistry Department provides a suite of comparisons of standard gas mixtures of the highest global importance, following the CCQM and the CCQM Working Group on Gas Analysis (GAWG) strategies in support of national energy and environmental priorities.

    In particular the BIPM Gas Metrology Group provides and coordinates comparisons of national measurement standards for:

    • greenhouse gases, demonstrating consistency at levels required to support national energy and environmental priorities;

    • major air-quality gases, demonstrating consistency at levels required to support national health and environmental priorities.

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