ISO-21438-1 › Workplace atmospheres - Determination of inorganic acids by ion chromatography - Part 1: Non-volatile acids (sulfuric acid and phosphoric acid)
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This document specifies a method for the determination of the time-weighted average mass concentration of sulfuric acid and phosphoric acid in workplace air by ion chromatography. The anions are detected by conductivity.
The method is applicable to the personal sampling of airborne particles, as defined in ISO 7708, and to static (area) sampling.
The method does not apply to the determination of sulfur trioxide.
The procedure does not differentiate between the acids and their corresponding salts if both are present in the workplace air.
The procedure does not differentiate between phosphoric acid and diphosphorus pentoxide (phosphoric anhydride) if both are present in the workplace air.
To find similar documents by classification:
13.040.30 (Workplace atmospheres Air quality of surgery rooms, see 11.080.01)
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Document Number
ISO 21438-1:2022
Revision Level
2ND EDITION
Status
Current
Publication Date
May 1, 2022
Committee Number
ISO/TC 146/SC 2