Part 1 Group A pollutants
Original text. Later amendments are not shown.
| Reference method |
|---|
| Sampling and analysis of benzene | A pumped sampling method on a sorbent cartridge followed by gas chromatographic determination |
| Analysis of carbon monoxide | A non-dispersive infra-red spectrometric (NDIR) method |
| Sampling of lead | The same reference method as for PM10 |
| Analysis of lead | ISO 9855: 1993 Ambient air — Determination of the particulate lead content of aerosols collected in filters. Atomic absorption spectroscopy method |
| Analysis of nitrogen dioxide and oxides of nitrogen | ISO 7996: 1985 Ambient air — determination of the mass concentrations of nitrogen oxides — chemiluminescence method |
| Sampling and measurement of PM10 | The reference method for the sampling and measurement of PM10 is that described in EN 12341 “Air Quality — Field Test Procedure to Demonstrate Reference Equivalence of Sampling Methods for the PM10 fraction of particulate matter” . The measurement principle is based on the collection on a filter of the PM10 fraction of ambient particulate matter and the gravimetric mass determination |
| Analysis of sulphur dioxide | ISO/FDIS 10498 (Standard in draft) Ambient air — determination of sulphur dioxide — ultraviolet fluorescence method |