ISO 21438-2:2024 工作场所空气 用离子色谱法测定无机酸 第2部分：除氢氟酸外的挥发性酸（盐酸、氢溴酸和硝酸）

标准编号：ISO 21438-2:2024

中文名称：工作场所空气 用离子色谱法测定无机酸 第2部分：除氢氟酸外的挥发性酸（盐酸、氢溴酸和硝酸）

英文名称：Workplace atmospheres — Determination of inorganic acids by ion chromatography — Part 2: Volatile acids, except hydrofluoric acid (hydrochloric acid, hydrobromic acid and nitric acid)

发布日期：2024-01

标准范围

本文件规定了一种测定工作场所空气中氯化氢（HCl）气体和盐酸雾、溴化氢（HBr）蒸汽和氢溴酸雾以及硝酸（HNO3）蒸汽和雾的时间加权平均质量浓度的方法，该方法通过在碱浸渍石英纤维过滤器上收集并通过离子色谱法进行分析。对于雾气采样，本方法适用于ISO定义的空气中颗粒物可吸入部分的个人采样？7708和静态（区域）采样。

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.

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