ISO 16000-3:2022 室内空气 第3部分：测定室内空气和试验箱空气中甲醛和其它羰基化合物 活性取样法

标准编号：ISO 16000-3:2022

中文名称：室内空气 第3部分：测定室内空气和试验箱空气中甲醛和其它羰基化合物 活性取样法

英文名称：Indoor air — Part 3: Determination of formaldehyde and other carbonyl compounds in indoor and test chamber air — Active sampling method

发布日期：2022-09

标准范围

本文件规定了空气中甲醛（HCHO）和其他羰基化合物（醛和酮）的测定。该方法对甲醛具有特异性，但经过改进，可以检测和定量至少12种其他芳族以及饱和和不饱和脂族羰基化合物。适用于近似浓度范围为1 μ g/m3~1 mg/m3的甲醛等羰基化合物的测定。采样方法给出了时间加权平均（TWA）样本。它可用于空气中甲醛的长期（1小时至24小时）或短期（5分钟至60分钟）采样。本文件规定了甲醛和其他羰基化合物的取样和分析程序，包括从空气中收集到涂有2,4-二硝基苯肼（DNPH），随后通过高效液相色谱（HPLC）分析形成的腙，并通过紫外吸收进行检测[12]，[16]。该方法不适用于长链或不饱和羰基化合物。

This document specifies a determination of formaldehyde (HCHO) and other carbonyl compounds (aldehydes and ketones) in air. The method is specific to formaldehyde but, with modification, at least 12 other aromatic as well as saturated and unsaturated aliphatic carbonyl compounds can be detected and quantified. It is suitable for determination of formaldehyde and other carbonyl compounds in the approximate concentration range 1 μg/m³ to 1 mg/m³. The sampling method gives a time-weighted average (TWA) sample. It can be used for long-term (1 h to 24 h) or short-term (5 min to 60 min) sampling of air for formaldehyde.This document specifies a sampling and analysis procedure for formaldehyde and other carbonyl compounds that involves collection from air on to adsorbent cartridges coated with 2,4-dinitrophenylhydrazine (DNPH) and subsequent analysis of the hydrazones formed by high performance liquid chromatography (HPLC) with detection by ultraviolet absorption^[12],[16]. The method is not suitable for longer chained or unsaturated carbonyl compounds.

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