International Standard
ISO 21438-2:2024
Workplace atmospheres — Determination of inorganic acids by ion chromatography — Part 2: Volatile acids, except hydrofluoric acid (hydrochloric acid, hydrobromic acid and nitric acid)
Reference number
ISO 21438-2:2024
Edition 2
2024-01
© ISO 2024
International Standard
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Published (Edition 2, 2024)

ISO 21438-2:2024

Format
Language
CHF 129
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Abstract

This document specifies a method for the determination of the time-weighted average mass concentration of hydrogen chloride (HCl) gas and hydrochloric acid mist, hydrogen bromide (HBr) vapour and hydrobromic acid mist and nitric acid (HNO3) vapour and mist in workplace air by collection on an alkali-impregnated quartz fibre filter and analysis by ion chromatography.

For mist sampling, this method is applicable to the personal sampling of the inhalable fraction of airborne particles as defined in ISO 7708 and to static (area) sampling.

General information

  • Status
     : Published
    Publication date
     : 2024-01
    Stage
    : International Standard published [60.60]
  • Edition
     : 2
    Number of pages
     : 20
  • Technical Committee :
    ISO/TC 146/SC 2
    ICS :
    13.040.30 
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