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ISO 4221:1980

Air quality - Determination of mass concentration of sulphur dioxide in ambient air - Thorin spectrophotometric method
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ISO 4221:1980

Air quality - Determination of mass concentration of sulphur dioxide in ambient air - Thorin spectrophotometric method

PUBLISH DATE 1980
ISO 4221:1980

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.

SDO ISO: International Organization for Standardization
Document Number ISO 4221
Publication Date Nov. 15, 1980
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 146/SC 3
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