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

ISO-4221 - 1ST EDITION - 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.

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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