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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

Upcoming Meeting

CCQM-GAWG
  • From 08 to 09
  • April
  • 2025

Past Meeting

CCQM-GAWG
  • From 21 to 22
  • October
  • 2024

Past Meeting

CCQM-GAWG
  • From 23 to 24
  • April
  • 2024

Past Meeting

CCQM-GAWG
  • From 10 to 11
  • October
  • 2023

GAWG Final Reports

GAWG Strategy document

GAWG Final Reports

Key Comparisons Pilot Studies

GAWG Guidance documents

CCQM-GAWG/REF-08-15

Flowchart for calculating a KCRV

Martin Milton

Tue Oct 05 00:00:00 GMT 2010

CCQM-GAWG/REF-08-95

Harmonisation of CMCs for gaseous CRMs

Martin Milton

Tue Oct 05 00:00:00 GMT 2010

CCQM-GAWG/REF-09-07

Method for determining acceptable CMCs

Maurice Cox

Thu Apr 07 00:00:00 GMT 2011

CCQM-GAWG/10-03

Harmonisation of CMCs for ozone

Martin Milton, Joële Viallon

Tue Oct 05 00:00:00 GMT 2010

CCQM-GAWG/REF-10-79

Implementing an efficient approach to the review of CMCs

Martin Milton

Tue Oct 05 00:00:00 GMT 2010

CCQM-GAWG/REF-11-06

Objectives and Tasks of the GAWG

Fri May 20 00:00:00 GMT 2011

CCQM-GAWG/19-41

CCQM-GAWG strategy for comparisons and CMC claims

Paul Brewer

Mon Jun 17 00:00:00 GMT 2019

CCQM-GAWG/20-02

Operation of key comparions

Paul Brewer

Wed Mar 06 00:00:00 GMT 2024

CCQM-GAWG/21-68

CCQM-GAWG guidance document for purity analysis and CMC claims

Sangil Lee

Fri Nov 26 00:00:00 GMT 2021

CCQM-GAWG/22-03

CMC Guidance template

Takuya Shimosaka

Tue Feb 22 00:00:00 GMT 2022

CCQM-GAWG/22-106

CCQM-GAWG Guidance document for submitting and reviewing CMCs for purity analysis

Janneke van Wijk

Thu Dec 01 00:00:00 GMT 2022

CCQM-GAWG/24-01

CCQM-GAWG guidance for designing model 1 and model 2 key comparisons

Thu Mar 21 00:00:00 GMT 2024

CCQM-GAWG/CMC-01

CCQM-K112 CMC Guidance document

Mon May 04 00:00:00 GMT 2020

CCQM-GAWG/CMC-02

CCQM-K137 CMC Guidance document

Wed Jun 03 00:00:00 GMT 2020

CCQM-GAWG/CMC-03

CCQM-K10.2018 CMC Guidance document

Fri Jan 21 00:00:00 GMT 2022

CCQM-GAWG/CMC-04

CCQM-K117 CMC Guidance document

Fri May 27 00:00:00 GMT 2022

CCQM-GAWG/CMC-05

CCQM-K165 CMC Guidance document

Fri Jul 01 00:00:00 GMT 2022

CCQM-GAWG/CMC-06A

CCQM-K118 CMC Guidance document

Wed Mar 01 00:00:00 GMT 2023

CCQM-GAWG/CMC-06B

CCQM-K118 CMC Supporting document

Wed Mar 01 00:00:00 GMT 2023

CCQM-GAWG/CMC-07

CCQM-K74.2018 CMC Guidance document

Fri Feb 10 00:00:00 GMT 2023

CCQM-GAWG/CMC-08

CCQM-K150 CMC Guidance document

Tue Dec 19 00:00:00 GMT 2023

CCQM-GAWG/CMC-09

CCQM-K3.2019 CMC Guidance document

Tue Mar 19 00:00:00 GMT 2024

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.