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.