This International standard 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 standard. The GC-MS method is suitable for the determination of hexabromocyclododecane (HBCDD). Informative Annex A of this standard contains a method using high pressure liquid chromatography mass spectrometry (HPLC-MS). These test methods have been evaluated for use with EPS (Expanded polystyrene) foam and ABS (Acrylonitrile butadiene styrene) within the concentration ranges as specified in Table 1. The use of this method for other types of materials or concentration ranges outside those specified below has not been evaluated. Table 1 Tested concentration ranges for HBCDD by GC-MS in various materials