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AS/NZS 3580.9.3:2015

AS/NZS 3580.9.3:2015

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Methods for sampling and analysis of ambient air – Determination of suspended particulate matter – Total suspended particulate matter (TSP) – High volume sampler gravimetric method

Published By Publication Date Number of Pages
AS 2015-06-10 21
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This Standard specifies a gravimetric method for the determination of suspended particulate
matter in ambient air. Generally, the particles collected are of equivalent aerodynamic
diameter (EAD) of less than 100 µm. The upper size limit of particles collected depends
upon sampling conditions, especially wind velocity and direction.
The method provides a measure of mean concentration of TSP over the sampling period
employed.
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 µg/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 volatility,
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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AS/NZS 3580.9.3:2015
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