– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
Search facility:

| Site map | News | Contact us
CCQM Working Group on Gas Analysis (CCQM-GAWG)

Chair:  Dr Paul Brewer (NPL)


  1. 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;

  2. 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.


  • Dr Paul Brewer  (NPL)


  • Dr Sangil Lee  (KRISS)


  • Mr Dai Akima (CERI)
  • Mr Abdulrahman Rashed Alaskar (SASO-NMCC)
  • Dr Majed AL-Harthi (SASO-NMCC)
  • Dr Hanspeter Andres (METAS)
  • Dr Mariana Arce Osuna (CENAM)
  • Dr Angelique Botha (NMISA)
  • Dr Paul Brewer (NPL)
  • Ms Andreia de Lima Fioravante (INMETRO)
  • Dr Vladimir Dobrovolskiy (VNIIFTRI)
  • Dr Zuzana Durisova (SMU)
  • Prof. Volker Ebert (PTB)
  • Dr Tahir Erinç Engin (UME)
  • Dr Teresa Fernández Vicente (CEM)
  • Mrs Judit Fuko (BFKH)
  • Mrs Patricia Alejandra Gatti (INTI)
  • Dr Joseph Hodges (NIST)
  • Mr Heinrich Kipphardt (BAM)
  • Dr Jorge Koelliker Delgado (CENAM)
  • Prof. Dr Leonid Konopelko (VNIIM)
  • Dr Yuriy Anatolievitch Kustikov (VNIIM)
  • Dr Jeongsoon Lee (KRISS)
  • Dr Sangil Lee (KRISS)
  • Mrs Tatiana Macé (LNE)
  • Dr Michael Maiwald (BAM)
  • Dr Bernhard Niederhauser (METAS)
  • Dr Narine Oganyan (VNIIFTRI)
  • Dr George-Jerry Rhoderick (NIST)
  • Dr Adriana Rosso (INTI)
  • Dr Michela Sega (INRIM)
  • Dr Takuya Shimosaka (NMIJ/AIST)
  • Mr David Siklosi (BFKH)
  • Ms Ratirat Sinweeruthai (NIMT)
  • Dr Damian Smeulders (NMIA)
  • Ms Dyah Styarini (RCM-LIPI)
  • Dr Tanil Tarhan (UME)
  • Mr James Tshilongo (NMISA)
  • Dr Shinji Uehara (CERI)
  • Dr Miroslava Valkova (SMU)
  • Dr Adriaan van der Veen (VSL)
  • Dr Takuro Watanabe (NMIJ/AIST)
  • Dr Olav Werhahn (PTB)
  • Dr Charun Yafa (NIMT)
  • Dr Zeyi Zhou (NIM)
  • Dr Oman Zuas (RCM-LIPI)

Designation of contact persons
CCQM summary
General information
CCQM members
CCQM working groups
CCQM publications and forms
CCQM strategy
CCQM workshops
CCQM pilot studies
Photographs of the CCQM
Key comparisons
Summary of CCQM Key Comparisons and Pilot Studies
Traceability exceptions
Open documents
CCQM documents
GAWG documents
IAWG documents
IRWG documents
KCWG documents
OAWG documents
PAWG documents