电工产品中某些物质的测定第9部分:用色谱-质谱法（GC-MS）测定聚合物中的六溴环十二烷

[中文适用范围]： IEC 62321-9 规定了两项用于测定电工产品中聚合物内六溴环十二烷（HBCDD）的技术。气相色谱-质谱（GC-MS）测试方法在本文件的规范性部分进行了描述。该方法适用于测定六溴环十二烷（HBCDD）。一种使用高效液相色谱-质谱（HPLC-MS）的方法给出在资料性附录 A 中。这些测试方法已针对 EPS（发泡聚苯乙烯）、XPS（挤出发泡聚苯乙烯）和 ABS（丙烯腈-丁二烯-苯乙烯）进行了评估，使用的浓度范围如表 1 所示。本方法用于其他类型的材料或超出上述规定浓度范围的情况尚未进行评估。 [外文原描述]： IEC 62321-9:2021 specifies two techniques for the determination of hexabromocyclododecane (HBCDD) in polymers of electrotechnical products. The gas chromatography-mass spectrometry (GC-MS) test method is described in the normative part of this document. The GC-MS method is suitable for the determination of hexabromocyclododecane (HBCDD). A method using high-pressure liquid chromatography-mass spectrometry (HPLC-MS) is given. These test methods have been evaluated for use with EPS (expanded polystyrene foam), XPS (extruded polystyrene foam) and ABS (acrylonitrile butadiene styrene) within the concentration ranges as specified. The use of this method for other types of materials or concentration ranges outside those specified below has not been evaluated. This document has the status of a horizontal standard in accordance with IEC Guide 108.