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Advancing the global comparability of chemical and biological measurement standards and capabilities - Enabling measurements to be made with confidence
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Technical/Scientific
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Published GAWG Pilot Studies
Final Report
Carbon Dioxide in air and nitrogen at ambient levels
Nitrous Oxide (N2O) in air
Comparison on CO2 isotope ratios in pure CO2
10 µmol mol–1 water vapour in nitrogen
Particle number and concentration comparisons
Ambient CO2, 380 to 480 μmol/mol
Monoterpenes in Nitrogen
Ambient carbon monoxide
Spectroscopic methods for HNO3 value assignment
Halocarbons in air
Nitrogen dioxide 10 µmol/mol by spectroscopic methods
Multicomponent preparative capability study
Nitogen monoxide in nitrogen
SF6, CFCs - emission levels
Natural gas types IV and V
Greenhouse gases CO2, CH4 - ambient levels
Ozone - ambient levels
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