ISO-4221 › Air quality - Determination of mass concentration of sulphur dioxide in ambient air - Thorin spectrophotometric method
ISO-4221
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1ST EDITION
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CURRENT
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Applies to the range of 3,5 to 150 g/m3, assuming an air sample volume of 2 m3 and a sample solution volume of 50 ml. For higher concentrations, dilution of the sample may be necessary.
To find similar documents by classification:
13.040.20 (Ambient atmospheres Including indoor air)
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Document Number
ISO 4221:1980
Revision Level
1ST EDITION
Status
Current
Publication Date
Nov. 15, 1980
Committee Number
ISO TC 146/SC 3