The HAMAQ project, which ran from three years from December 1996, was intended to improve the consistency of air quality measurements of the pollutants CO, NO, SO₂, NO₂ and C₆H₆ made throughout Europe. This was done by assessing and subsequently improving the level of agreement between the various primary calibration methods currently employed at national standards laboratories/institutes in Europe. The project was part funded by the Standards, Measurement and Testing Programme of the European Commission and involved seven European national measurement institutes and two commercial gas companies as subcontractors.

The final outcome of the project was a report, which can be downloaded here - HAMAQ Report ( PDF 542 KB) - in its entirety, or section by section below:

• c6h6_circ.pdf
• co_circ.pdf
• no_circ.pdf
• no2_circ.pdf
• so2_circ12.pdf
• c6h6_individual.pdf
• co_individual.pdf
• no_individual.pdf
• no2_indiv.pdf
• so2_individual.pdf

NPL currently has relevant capabilities in the production of low concentration gas standards and field-based calibration of gas analysers.

For further information on the HAMAQ project, please contact Paul Quincey