The term "greenhouse gas" (GHG) includes various gases naturally present in the atmosphere (CO2, CH4, N2O, O3) or resulting from human activity (CO2, CH4, CF4, SF6,...) and which have in common to absorb solar radiation re-emitted by the Earth's surface, thus contributing to global warming.


Develop reference gas mixtures for high-impact GHGs (CO, CO2, CH4, N2O, SF6 and other fluorinated gases)

Develop dynamic generation methods allowing the preparation of reference gas mixtures directly on site at trace level concentrations (< ppb)


Find here the detailled description of the project:


  • NPL (UK),
  • PTB (Germany),
  • DFM (Denmark),
  • METAS (Switzerland),
  • MIKES (Finland),
  • TÜBITAK (Turkey),
  • VSL (Netherlands),
  • CMI (Czech Republic),
  • IL (Finland),
  • EMPA (Switzerland)