CCQM Working Group on Gas Analysis (CCQM-GAWG)
Chair
National Physical Laboratory
United Kingdom
Vice-Chair
Director, Division of Chemical and Biological Metrology
Korea Research Institute of Standards and Science
Korea (Republic of)
Meetings and related documents
Strategy documents
GAWG Final Reports
GAWG Guidance documents
CCQM-GAWG/REF-10-79
Implementing an efficient approach to the review of CMCs
Martin Milton
05/10/2010
CCQM-GAWG/21-68
CCQM-GAWG guidance document for purity analysis and CMC claims
Sangil Lee
26/11/2021
CCQM-GAWG/22-106
CCQM-GAWG Guidance document for submitting and reviewing CMCs for purity analysis
Janneke van Wijk
01/12/2022
Terms of reference
- To carry out Key Comparisons, and where necessary pilot studies, to critically evaluate and benchmark NMI/DI claimed competences for standards and capabilities for gas composition (including binary and multicomponent mixtures); gas/liquid mixture composition; nanoparticle and aerosol concentration; isotope ratio measurement; concentration of dissolved gases in liquid or solid matrices;
- To assist in identifying and establishing inter‐laboratory work, pilot studies and research activities to provide SI traceable measurement results with reduced uncertainties for new measurement technologies in gas analysis such as dynamic dilution techniques for unstable gases, as well as spectroscopic techniques with the potential to be used as primary methods.
Working Groups