Standard No.:	GB/T 39560.9-2024
English Name:	Determination of certain substances in electrical and electronic products—Part 9: Hexabromocyclododecane in polymers by gas chromatography-mass spectrometry (GC-MS)
Chinese Name:	电子电气产品中某些物质的测定 第9部分：气相色谱-质谱法（GC-MS）测定聚合物中的六溴环十二烷
Chinese Classification:	L10    Electronic element in general
Professional Classification:	GB    National Standard
Issued by:	SAMR;SAC
Issued on:	2024-8-23
Implemented on:	2024-12-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	17000 words
Price(USD):	510.0
Delivery:	via email in 1~3 business day

GB/T 39560.9-2024 Determination of certain substances in electrical and electronic products - Part 9: Hexabromocyclododecane in polymers by gas chromatography-mass spectrometry (GC-MS) 1 Scope This document 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 in informative Annex A. 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 in Table 1. The use of this method for other types of materials or concentration ranges outside those specified below has not been evaluated. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 39560.1-2020 Determination of certain substances in electrotechnical products - Part 1: Introduction and overview 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 62321-1 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: ——IEC Electropedia: available at http://www.electropedia.org/ ——ISO Online browsing platform: available at http://www.iso.org/obp 3.2 Abbreviated terms ABS: acrylonitrile butadiene styrene API-ES: atmospheric pressure-electrospray BFR: brominated flame retardant BSA: N,O-Bis(trimethylsilyl)acetamide BSTFA: N,O-Bis(trimethylsilyl)trifluoroacetamide CCC: continuing calibration check C-IC: combustion-ion chromatography EI: electron ionization EPS: expanded polystyrene foam HBCDD: hexabromocyclododecane HPLC-MS: high-pressure liquid chromatography-mass spectrometry ID: internal diameter IS: internal standard GC-MS: gas chromatography-mass spectrometry LOD: limit of detection LOQ: limit of quantification MDL: method detection limit PTFE: polytetrafluoroethylene QC: quality control RSD: relative standard deviation SIM: single (or "selected") ion monitoring THF: tetrahydrofuran TIC: tentatively identified compound XPS: extruded polystyrene foam XRF: X-ray fluorescence UV: ultraviolet 4 Principle HBCDD is determined using ultrasonic or Soxhlet extraction followed by gas chromatography separation and mass spectrometry determination. This technique is suitable to determinate total HBCDD instead of separated HBCDD isomers. Note: The thermal stability of HBCDD is poor. The results can be influenced by the temperature testing conditions.