ISO 11890-2:2020 色漆和清漆 挥发性有机化合物（VOC）及/或半挥发性有机化合物（SVOC）含量的测定 第2部分：气相色谱法

标准编号：ISO 11890-2:2020

中文名称：色漆和清漆 挥发性有机化合物（VOC）及/或半挥发性有机化合物（SVOC）含量的测定 第2部分：气相色谱法

英文名称：Paints and varnishes — Determination of volatile organic compounds(VOC) and/or semi volatile organic compounds (SVOC) content — Part 2: Gas-chromatographic method

发布日期：2020-06

标准范围

本文件适用于预计VOC和/或SVOC含量大于0.01%（按质量计）至100%（按质量计）的VOC和SVOC的测定。当VOC质量分数大于15%时，使用ISO 11890-1中给出的方法。当系统包含VOC和SVOC时，本文件（方法ISO 11890-2）适用，因为ISO 11890-1的VOC结果可能会受到SVOC的影响。对于小于0.1%的VOC含量，可使用ISO 17895中描述的顶空法作为替代方法。ISO 11890-1和ISO 17895不能用于测定SVOC含量。注1:涂层材料的某些成分及其原材料在分析过程中可能会分解，并产生人工VOC和/或SVOC信号。在确定涂层材料及其原材料的VOC和/或SVOC时，这些信号是该方法的人工制品，不考虑（附录B中给出了示例）。该方法假设挥发性物质为水或有机物。然而，可能存在其他挥发性无机化合物，可能需要通过另一种合适的方法进行量化，并在计算中考虑。本文件中定义的方法不适用于水含量的测定。注2:如果涂层材料或其原材料中存在有机酸或碱及其相应的盐，由于酸或碱平衡的变化，通过该方法量化的量可能不准确。

This document is applicable for the determination of VOC and SVOC with an expected VOC and/or SVOC content greater than 0,01 % by mass up to 100 % by mass.The method given in ISO 11890-1 is used when the VOC is greater than 15 % by mass. This document (method ISO 11890-2) applies when the system contains VOC and SVOC as the VOC result of ISO 11890-1 can be influenced by the SVOC. For VOC content smaller than 0,1 %, the head space method described in ISO 17895 is used as an alternative. ISO 11890-1 and ISO 17895 cannot be used for the determination of the SVOC content.NOTE 1 Some ingredients of coating materials and their raw materials can decompose during analysis and cause artificial VOC and/or SVOC signals. When determining VOC and/or SVOC for coating materials and their raw materials, these signals are artefacts of the method and are not taken into account (examples are given in Annex B).This method assumes that the volatile matter is either water or organic. However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations. The method defined in this document is not applicable for determination of water content.NOTE 2 If organic acids or bases and their corresponding salts are present in the coating material or its raw materials, the amount that is quantified by this method might not be accurate due to a change in the acid or base equilibrium.

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