ISO 4221:1980
Current
Current
The latest, up-to-date edition.
Air quality — Determination of mass concentration of sulphur dioxide in ambient air — Thorin spectrophotometric method
Available format(s)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
Language(s)
English, French
Published date
11-01-1980
Applies to the range of 3,5 to 150 micrograms per cubic metre, 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.
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