ISO 20264:2019 固定源排放 非燃烧过程废气中挥发性有机化合物质量浓度的测定

标准编号：ISO 20264:2019

中文名称：固定源排放 非燃烧过程废气中挥发性有机化合物质量浓度的测定

英文名称：Stationary source emissions — Determination of the mass concentration of individual volatile organic compounds (VOCs) in waste gases from non-combustion processes

发布日期：2019-09

标准范围

本文件规定了使用FTIR光谱法测定非燃烧过程废气中单个挥发性有机化合物（VOCs）的浓度。该方法可用于连续分析从管道和其他来源提取的样品气体。如果化合物不吸附在袋材料上，也可以应用袋取样方法，并且适用于难以或不可能获得直接提取样品的情况。本文描述了测量单个VOCs的原理、取样程序、红外光谱测量和分析、校准、处理干扰、QA/QC程序和一些基本性能标准。注1该方法的实际最低可检测浓度取决于所用FTIR仪器（即气室路径长度、分辨率、仪器噪声和分析算法）、化合物和干扰特异性（如水和CO2）。

This document specifies the use of FTIR spectrometry for determining the concentrations of individual volatile organic compounds (VOCs) in waste gases from non-combustion processes. The method can be employed to continuously analyse sample gas which is extracted from ducts and other sources. A bag sampling method can also be applied, if the compounds do not adsorb on the bag material, and is appropriate in cases where it is difficult or impossible to obtain a direct extractive sample.The principle, sampling procedure, IR spectral measurement and analysis, calibration, handling interference, QA/QC procedures and some essential performance criteria for measurement of individual VOCs are described in this document.NOTE 1 The practical minimum detectable concentration of this method depends on the FTIR instrument (i.e. gas cell path length, resolution, instrumental noise and analytical algorithm) used, compounds, and interference specific (e.g. water and CO₂).

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