ISO-10473 › Ambient air -- Measurement of the mass of particulate matter on a filter medium -- Beta-ray absorption method
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This International Standard describes a method for the measurement of the mass of particulate matter in ambient air and is based on the absorption of beta rays by the particulate matter.
This method applies to the determination of concentrations ranging from a few micrograms per cubic metre to a few milligrams per cubic metre contained in the atmospheres of urban, rural or industrial areas.
The lower mass detection limit of the method is usually 15 μg to 30 μg of deposited mass per square centimetre of surface area, S, of the filter. This means, for a sampling time t of 3 h and a flowrate q of 1 m3/h, that the concentration detection limit ranges between 5 μg/m3and 10 μg/m3, computed as follows:
Concentration(μg/cm2)·S(cm2)/q(m3/h)·1/t(h)
Sampling techniques are not included in the scope of this International Standard.
To find similar documents by classification:
13.040.20 (Ambient atmospheres Including indoor air)
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Document Number
ISO 10473:2000
Revision Level
1ST EDITION
Status
Current
Publication Date
April 15, 2000
Committee Number
ISO TC 146/SC 3