AS/NZS 3580.9.6:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Methods for sampling and analysis of ambient air - Part 9.6: Determination of suspended particulate matter - PM(sub)10(/sub) high volume sampler with size-selective inlet - Gravimetric method
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30-06-2017
English
01-01-2003
This Standard specifies a gravimetric method for the determination of suspended particulate matter in ambient air. The method provides a measure of mean concentration of PM10 over the sampling period employed. A procedure for assessing the performance of PM10 samplers, so that they comply with the sampling requirements of this method, is described. NOTES: 1 Sampling is normally of 24 h duration to average out the effect of the diurnal variations in particle levels and to enable collection of sufficient mass of particulate matter. Provided that the mass of the filter is determined under carefully controlled laboratory conditions, mean concentrations of 1 mg/m3 and greater may be determined using a 24 h sampling period. 2 It is possible that some particulate matter, depending upon its hygroscopicity or volatilily may alter in mass from its initial as-sampled state because of the environmental conditions and filter equilibration procedure referred to in Clauses 7.1 and 7.8. The degree of mass change is largely due to the nature of the sampled aerosol and may vary from day to day site to site and seasonally.
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