Abstract
A first exercise with reference materials, circulating in national laboratories in the framework of the implementation of the Council Directive 80/779/EEC, has 27 measuring stations of the Member States visited by a JRC mobile laboratory, carried out a routine monitoring of SO{sub 2}, black smoke and suspended particulates in parallel with a comparison instrument. For each parameter, the comparison instrument was calibrated in the mobile laboratory and used in the site according to the (revised) reference method of the Directive. After a 24 hour intercomparison period, the reading of the instruments and the sampling equipments were checked separately. Two standard gas mixtures, showed that 80% of SO{sub 2} specific analysers measured within {+-} 20%. On the contrary, at the very low ambient concentrations measured, only 45% of the instruments showed a comparable reproducibility; more fluctuations were caused by the instability of the instruments base line. The standard solutions used for cross-checks showed, for total acidity and thorin methods, a generally good agreement between manual analysis procedures. However, the flowrates of the samplers, were responsible for number of ambient intercomparison differences. For black smoke, the deviations of ambient intercomparison measurements were due to erroneous sampling flowrates, incomplete application of the procedures
More>>
Payrissat, M;
Rau, H;
[1]
Stevenson, K J;
[2]
Lingner, B
[3]
- Commission of the European Communities, Ispra (IT). Joint Research Centre
- Warren Spring Lab., Stevenage, (GB)
- Technische Univ. Berlin (DE)
Citation Formats
Payrissat, M, Rau, H, Stevenson, K J, and Lingner, B.
2. European quality assurance programme for sulphur dioxide and suspended particulates measurements.
France: N. p.,
1990.
Web.
Payrissat, M, Rau, H, Stevenson, K J, & Lingner, B.
2. European quality assurance programme for sulphur dioxide and suspended particulates measurements.
France.
Payrissat, M, Rau, H, Stevenson, K J, and Lingner, B.
1990.
"2. European quality assurance programme for sulphur dioxide and suspended particulates measurements."
France.
@misc{etde_10150294,
title = {2. European quality assurance programme for sulphur dioxide and suspended particulates measurements}
author = {Payrissat, M, Rau, H, Stevenson, K J, and Lingner, B}
abstractNote = {A first exercise with reference materials, circulating in national laboratories in the framework of the implementation of the Council Directive 80/779/EEC, has 27 measuring stations of the Member States visited by a JRC mobile laboratory, carried out a routine monitoring of SO{sub 2}, black smoke and suspended particulates in parallel with a comparison instrument. For each parameter, the comparison instrument was calibrated in the mobile laboratory and used in the site according to the (revised) reference method of the Directive. After a 24 hour intercomparison period, the reading of the instruments and the sampling equipments were checked separately. Two standard gas mixtures, showed that 80% of SO{sub 2} specific analysers measured within {+-} 20%. On the contrary, at the very low ambient concentrations measured, only 45% of the instruments showed a comparable reproducibility; more fluctuations were caused by the instability of the instruments base line. The standard solutions used for cross-checks showed, for total acidity and thorin methods, a generally good agreement between manual analysis procedures. However, the flowrates of the samplers, were responsible for number of ambient intercomparison differences. For black smoke, the deviations of ambient intercomparison measurements were due to erroneous sampling flowrates, incomplete application of the procedures and questionable linearity of some reflectometers. For suspended particulates measured by gravimetry, the nine balances checked showed a close agreement with standard weights.}
place = {France}
year = {1990}
month = {Dec}
}
title = {2. European quality assurance programme for sulphur dioxide and suspended particulates measurements}
author = {Payrissat, M, Rau, H, Stevenson, K J, and Lingner, B}
abstractNote = {A first exercise with reference materials, circulating in national laboratories in the framework of the implementation of the Council Directive 80/779/EEC, has 27 measuring stations of the Member States visited by a JRC mobile laboratory, carried out a routine monitoring of SO{sub 2}, black smoke and suspended particulates in parallel with a comparison instrument. For each parameter, the comparison instrument was calibrated in the mobile laboratory and used in the site according to the (revised) reference method of the Directive. After a 24 hour intercomparison period, the reading of the instruments and the sampling equipments were checked separately. Two standard gas mixtures, showed that 80% of SO{sub 2} specific analysers measured within {+-} 20%. On the contrary, at the very low ambient concentrations measured, only 45% of the instruments showed a comparable reproducibility; more fluctuations were caused by the instability of the instruments base line. The standard solutions used for cross-checks showed, for total acidity and thorin methods, a generally good agreement between manual analysis procedures. However, the flowrates of the samplers, were responsible for number of ambient intercomparison differences. For black smoke, the deviations of ambient intercomparison measurements were due to erroneous sampling flowrates, incomplete application of the procedures and questionable linearity of some reflectometers. For suspended particulates measured by gravimetry, the nine balances checked showed a close agreement with standard weights.}
place = {France}
year = {1990}
month = {Dec}
}