This standard specifies sampling, cleanup and analysis procedures for the quantitative determination of low volatility (particle bound) Polycyclic Aromatic Hydrocarbons (PAHs) in ambient air. For sampling, a low volume or a medium/high volume sampling device may be used. Sampling times between 1 hour and 24 hours are possible. The sampling volume flow rates can amount between 1 m3/h to 4 m3/h (""low volume sampler"") or from 10 m3/h up to about 90 m3/h (""medium/high volume sampler""). In anay case the linear face velocity at the collection filter should range between about 0,5 m/s and 0,9 m/s.