ISO 4221:1980 (R2023)
Active , Reaffirmed Standard
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ISO 4221:1980 (R2023)

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

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 11/01/1980
Confirmation Date 09/18/2023
Edition 1
Page Count 7
EAN ---
ISBN ---
Weight (in grams) ---
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