Working Group Members

CCQM Working Group on Gas Analysis (CCQM-GAWG)

Chair

Prof. Paul Brewer

National Physical Laboratory

United Kingdom

Vice-Chair

Dr Sangil Lee

Korea Research Institute of Standards and Science

Korea (Republic of)

List of meetings

Meetings and related documents

Past Meeting

CCQM-GAWG
  • From 25 to 26
  • April
  • 2022

Past Meeting

Past Meeting

Past Meeting

CCQM-GAWG: K118 - A4
  • 16
  • February
  • 2022

Asset Publisher

Strategy documents

GAWG Final Reports

GAWG Final Reports

Key Comparisons Pilot Studies

Publications

GAWG Guidance documents

CCQM-GAWG/REF-08-15

Flowchart for calculating a KCRV

Martin Milton

05/10/2010

CCQM-GAWG/REF-08-95

Harmonisation of CMCs for gaseous CRMs

Martin Milton

05/10/2010

CCQM-GAWG/REF-09-07

Method for determining acceptable CMCs

Maurice Cox

07/04/2011

CCQM-GAWG/10-03

Harmonisation of CMCs for ozone

Martin Milton, Joële Viallon

05/10/2010

CCQM-GAWG/REF-10-79

Implementing an efficient approach to the review of CMCs

Martin Milton

05/10/2010

CCQM-GAWG/REF-11-06

Objectives and Tasks of the GAWG

20/05/2011

CCQM-GAWG/19-41

CCQM-GAWG strategy for comparisons and CMC claims

Paul Brewer

17/06/2019

CCQM-GAWG/20-02

Operation of key comparions

Paul Brewer

20/04/2020

CCQM-GAWG/21-68

CCQM-GAWG guidance document for purity analysis and CMC claims

Sangil Lee

26/11/2021

CCQM-GAWG/22-03

CMC Guidance template

Takuya Shimosaka

22/02/2022

CCQM-GAWG/CMC-01

CCQM-K112 CMC Guidance document

04/05/2020

CCQM-GAWG/CMC-02

CCQM-K137 CMC Guidance document

03/06/2020

CCQM-GAWG/CMC-03

CCQM-K10.2018 CMC Guidance document

21/01/2022

CCQM-gawg-tor

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.

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