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GB/T 26125-2011: Electrical and electronic products -- Determination of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers) Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 26125-2011: Electrical and electronic products -- Determination of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers)---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT26125-2011 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 31.020 L 10 GB/T 26125-2011 / IEC 62321.2008 Electrical and electronic products – Determination of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, polybrominated diphenyl ethers) (IEC 62321.2008, Electrotechnical products - Determination of levels of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, IDT) Issued on. MAY 12, 2011 Implemented on. AUGUST 1, 2011 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. Table of ContentsForeword... 6 Introduction... 7 1 Scope... 8 2 Normative references... 8 3 Terms, definitions and abbreviations... 8 3.1 Terms and definitions... 8 3.2 Abbreviations... 10 4 Test methods – Overview... 13 4.1 Field of application... 13 4.2 Sample... 14 4.3 Test methods – Flow chart... 14 4.4 Adjustment to the matrix... 16 4.5 Limits of detection (LOD) and limits of quantification (LOQ)... 16 4.6 Test report... 17 4.7 Alternative test methods... 17 5 Mechanical sample preparation... 17 5.1 Overview... 18 5.2 Apparatus, equipment and materials... 18 5.3 Procedure... 19 6 Screening by X-ray fluorescence spectrometry (XRF)... 20 6.1 Overview... 20 6.2 Apparatus, equipment and materials... 23 6.3 Reagents... 23 6.4 Sampling... 23 6.5 Procedure... 24 6.6 Calculations... 28 6.7 Evaluation of the method... 29 6.8 Quality control... 30 6.9 Special cases... 31 7 Determination of mercury in polymers, metals and electronics by CV- AAS, CV-AFS, ICP- OES and ICP-MS... 33 7.1 Overview... 33 7.2 Apparatus, equipment and materials... 34 7.3 Reagents... 35 7.4 Sample preparation... 36 7.5 Test procedure... 38 7.6 Evaluation of the method... 39 8 Determination of lead and cadmium in polymers by ICP-OES, ICP-MS and AAS... 40 8.1 Overview... 40 8.2 Apparatus, equipment and materials... 41 8.3 Reagents... 42 8.4 Sample preparation... 43 8.5 Test procedure... 46 8.6 Evaluation of the method... 48 9 Determination of lead and cadmium in metals by ICP-OES, ICP-MS and AAS... 48 9.1 Overview... 49 9.2 Apparatus, equipment and materials... 49 9.3 Reagents... 50 9.4 Sample preparation... 51 9.5 Preparation of laboratory reagent blank... 53 9.6 Test procedure... 53 9.7 Evaluation of the method... 55 10 Determination of lead and cadmium in electronics by ICP-OES, ICP-MS and AAS... 56 10.1 Overview... 56 10.2 Apparatus, equipment and materials... 56 10.3 Reagents... 58 10.4 Sample preparation... 59 10.5 Test procedure... 61 10.6 Evaluation of the method... 64 Appendix A... 66 A.1 Introductory remark... 66 A.2 Apparatus, equipment and materials... 66 A.3 Reagents... 67 A.4 General instructions for the analysis... 68 A.5 Sample preparation... 68 A.6 Calibration... 69 A.7 GC-MS... 73 A.8 Quality control... 76 A.9 Evaluation of the method... 79 A.10 PBB and PBDE calibrants... 79 A.11 Alternative extraction procedures for soluble polymers... 80 A.12 Examples of chromatograms at suggested GC-MS conditions... 81 Appendix B... 84 B.1 Overview... 84 B.2 Apparatus, equipment and materials... 84 B.3 Reagents... 85 B.4 Sample preparation... 85 B.5 Test procedures... 86 B.6 Evaluation of the method... 88 Appendix C... 89 C.1 Overview... 89 C.2 Apparatus, equipment and materials... 89 C.3 Reagents... 90 C.4 Sample preparation... 91 C.5 Test procedure... 91 C.6 Determination of method detection limit and limit of quantification... 95 C.7 Evaluation of the method... 96 Annex D... 97 D.1 Introductory remark... 97 D.2 Matrix and interference effects... 97 D.3 Interpretation of results... 98 D.4 Summary results of the IIS2 as related to the XRF method... 100 Annex E... 105 E.1 Equipment... 105 E.2 Instrument parameters... 106 Annex F... 108 F.1 ICP-OES... 108 F.2 ICP-MS... 109 F.3 AAS... 109 Annex G... 110 G.1 ICP-OES... 110 G.2 Background correction... 111 G.3 ICP-MS... 112 G.4 AAS... 112 Annex H... 114 H.1 Program for microwave digestion... 114 H.2 ICP-OES... 114 H.3 Background correction... 116 H.4 ICP-MS... 117 H.5 AAS... 117 Bibliography... 119ForewordThis Standard is formulated in accordance with the rules in GB/T 1.1-2009. This Standard uses translation method to equivalently adopt IEC 62321.2008 “Electrotechnical products - Determination of six regulated substances (Lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, polybrominated diphenyl ethers)”. This Standard makes the following editorial changes. - In order to be consistent with our existing national standard series, the standard name is changed to "Electrical and electronic products - Determination of six regulated substances (Lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, polybrominated diphenyl ethers)"; - According to the latest development of international standards, the IEC/PAS document that was not explicitly specified in NOTE 1 of Clause 1 of the original text is clearly changed to IEC/PAS 62596.2009; add a reference document IEC/PAS 62596.2009 in Normative Reference; - According to the latest development of international standards, the reference document IEC/TS 62476 in NOTE 2 of the original text is changed to IEC/TR 62476.2009; - For the convenience of users to understand and use of the standard, add NOTE to "trace metals" grade. Our national documents that are corresponding to the international documents quoted in the Normative References of this Standard are as follows. - GB/T 6682-2008 Water for analytical laboratory use. Specification and test methods (ISO 3696.1987, MOD). This Standard shall be under the jurisdiction of the China Electrical & Electronics Products and Systems, Environmental Standardization Technical Committee (SAC/TC297). Drafting organizations of this Standard. China Electronics Standardization Institute, 5th Electronic Institute of Ministry of Industry and Information Technology, Ningbo Entry-Exit Inspection and Quarantine Bureau, Jiangsu Entry-Exit Inspection and Quarantine Bureau, Shenzhen Academy of Metrology and Quality Inspection, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Guangdong Entry-Exit Inspection and Quarantine Bureau, and Carolina Technology (Beijing) Limited. Main drafters of this Standard. Xing Weibing, Luo Daojun, Chen Jianguo, He Zhonghui, Chen Zeyong, Liu Zhihong, Zhou Minghui, Yang Lifeng, Dong Juan.1 ScopeThis Standard specifies the determination of the levels of lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr(VI)), and two types of brominated flame retardants - polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) that are contained in electrical and electronic products.2 Normative referencesThe following referenced documents are indispensable for the application of this Standard. For dated documents, only the specific edition apply. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 27025-2008 General requirements for the competence of testing and calibration laboratories (GB/T 27025-2008, ISO/IEC 17025.2005, IDT)3 Terms, definitions and abbreviationscalibration standard substance in solid or liquid form with known and stable concentration(s) of the analyte(s) of interest used to establish instrument response (calibration curve) with respect to analyte(s) concentration(s)4 Test methods – OverviewThis Standard refers to the sample as the object to be processed and measured according to the test methods to determine the levels of the regulated substances. A sample can either be a polymer, a metal or electronics.5 Mechanical sample preparationThis can be demonstrated by processing and analyzing certified reference materials and blanks before or after processing a material known to contain significant levels of regulated substances. Manual cutting is suitable for rough cutting and preparation of samples for further reduction. Recommended maximum sample sizes are listed below, but will depend on the specification of the equipment used in the subsequent preparation processes.6 Screening by X-ray fluorescence spectrometry (XRF)When applying this method to electronics “as received”, which, by the nature of their design, are not uniform, care shall be taken in interpreting the results. Similarly, the analysis of Cr in conversion coatings may be difficult due to the presence of Cr in substrate material and/or because of insufficient sensitivity for Cr in typically very thin (several hundred nm) conversion coating layers. 7 Determination of mercury in polymers, metals and electronics by CV- AAS, CV-AFS, ICP-OES and ICP-MS For the determination of elements at trace level, the reagents shall be of adequate purity. Contamination can be a major source of error when working in the 1 ng range with the instruments. Cautious handling of the apparatus and careful technique will minimize this problem. Therefore, only grade 1 water (7.3.a) shall be used. Care shall be taken that all materials in contact with the water are Hg-free.8 Determination of lead and cadmium in polymers by ICP-OES, ICP-MS and AASThe samples are pre-cut and/or milled to an appropriate size for the method selected according to the procedure described in Clause 5.Depending on the particular method of preparing the test solution, sample amounts may vary, as described in detail in this clause.9 Determination of lead and cadmium in metals by ICP-OES, ICP-MS and AASThe work according to this Standard involves the use of toxic and hazardous substances. A detailed warning is given in the clause. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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