SN/T 2005-2007 English PDFSN/T 2005: Historical versions
Basic dataStandard ID: SN/T 2005-2007 (SN/T2005-2007)Description (Translated English): Beet downy mildew quarantine and identification method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: G04;L04 Date of Implementation: 7/1/2008 Issuing agency(ies): General Administration of Customs SN/T 2005.1-2005: Determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products - Part 1: High Performance Liquid Chromatography---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products - Part 1. High Performance Liquid Chromatography Book of the People's Republic of China Entry and Exit Inspection and Quarantine Polybrominated biphenyls in electrical and electronic products And determination of polybrominated diphenyl ethers Part 1. High performance liquid chromatography Released on July 17,.2005 2006-01-18 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordThis part is the first part of SN/T 2005. Appendix A and Appendix B of this section are informative annexes. This part is proposed and managed by the National Certification and Accreditation Administration. This part is drafted by the Shenzhen Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Jilin Province Entry and Exit Inspection and Quarantine The bureau participated in the drafting. The main drafters of this section. Yang Zuojun, Wang Chengyun, Liu Li, Wang Mingtai, Zhang Weiya, Wu Jingwu, Zhang Wei. This section is the first industry standard for entry-exit inspection and quarantine. Polybrominated biphenyls in electrical and electronic products And determination of polybrominated diphenyl ethers Part 1. High performance liquid chromatography1 ScopeThis section specifies the HPLC method for the determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products. This section applies to the determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products.2 Terms and definitionsThe following terms and definitions apply to this section. 2.1 The structural formula of polybrominated biphenyl is shown in Figure 1. Figure 1 Structure of polybrominated biphenyl There are a total of 209 isomers of polybrominated biphenyls depending on the number and position of bromine atoms on the benzene ring. 2.2 The structural formula of polybrominated diphenyl ethers is shown in Figure 2. Figure 2 Structure of polybrominated diphenyl ethers There are a total of 209 isomers of polybrominated diphenyl ethers depending on the number and position of bromine atoms on the benzene ring.3 Method summaryThe sample was subjected to Soxhlet extraction using toluene as an extraction solvent, and the extract was subjected to concentration treatment and quantitative analysis by liquid chromatography.4 reagents and materialsUnless otherwise stated, only analytically pure reagents and distilled or deionized water or water of comparable purity were used in the analysis. 4.1 Methanol. Chromatographically pure. 4.2 Disodium hydrogen phosphate. 4.3 Potassium dihydrogen phosphate. ...... |
