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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) ISO 21438-2:2024

Publication date:   Jan 26, 2024

General information

60.60 Standard published   Jan 26, 2024

ISO

ISO/TC 146/SC 2 Workplace atmospheres

International Standard

13.040.30   Workplace atmospheres

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 21438-2:2009

NOW

PUBLISHED
ISO 21438-2:2024
60.60 Standard published
Jan 26, 2024