SN/T 2004.7-2006 English PDFUS$319.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2004.7-2006: Determination of mercury in electrical and electronic equipment. Part 7: Atomic fluorescence spectrometry Status: Valid
Basic dataStandard ID: SN/T 2004.7-2006 (SN/T2004.7-2006)Description (Translated English): Determination of mercury in electrical and electronic equipment. Part 7: Atomic fluorescence spectrometry Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: L04 Classification of International Standard: 31.020 Word Count Estimation: 10,168 Date of Issue: 2006-08-28 Date of Implementation: 2007-03-01 Quoted Standard: GB/T 602 Regulation (derived from): ?National-accreditation-Science [2010] 50 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the electrical and electronic products of lead, cadmium atomic fluorescence spectrometric method. This standard applies to electrical and electronic products consisting of polymers, aluminum, copper, iron and zinc -based metal materials and electronic components of lead and cadmium. Measuring range in Table 1. SN/T 2004.7-2006: Determination of mercury in electrical and electronic equipment. Part 7: Atomic fluorescence spectrometry---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 mercury in electrical and electronic equipment. Part 7. Atomic fluorescence spectrometry Book of the People's Republic of China Entry and Exit Inspection and Quarantine Determination of lead and cadmium in electrical and electronic products Part 7. Atomic Fluorescence Spectroscopy Released on.2006-08-28 2007-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordThis part is the seventh part of SN/T 2004. Appendix A of this section is an informative annex. This part is proposed and managed by the National Certification and Accreditation Administration. This part is drafted by the Ningbo Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Tianjin Entry-Exit Inspection The Inspection and Quarantine Bureau and the Liaoning Entry-Exit Inspection and Quarantine Bureau participated in the drafting. The main drafters of this section. Chen Shaohong, Chen Jianguo, Zhu Xiaoyan, Cao Guozhou, Shi Jun, Li Quanbin, Liu Li, Liu Zhihong, Wei Hongbing, Chen Wei. This section is the first industry standard for entry-exit inspection and quarantine. Determination of lead and cadmium in electrical and electronic products Part 7. Atomic Fluorescence Spectroscopy1 ScopeThis part of SN/T 2004 specifies the atomic fluorescence spectrometric method for the determination of lead and cadmium in electrical and electronic products. This section applies to lead, cadmium in polymers, aluminum-based, copper-based, iron-based and zinc-based metallic materials and electronic components that make up electrical and electronic products. Determination. The measurement range is shown in Table 1. Table 1 Element measurement range unit is mg/kg Sample material Elemental measurement range Lead and cadmium Polymer and aluminum base 30~1200 1.5～200 Copper base 125~3000 - Iron base 60 ~ 1600 1.5 ~ 500 Zinc base 50～1200 2.0～6002 Normative referencesThe terms in the following documents become the provisions of this section by reference to this part of SN/T 2004. Quotations with dated , all subsequent amendments (not including errata content) or modified versions do not apply to this section, however, encouragement is achieved according to this section The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this section. GB/T 602 Preparation of standard solutions for the determination of impurities in chemical reagents (GB/T 602-2002, ISO 6353-1.1982, NEQ)3 Method summaryAfter the sample is digested and diluted to a certain volume, the lead ions and cadmium ions in the sample solution are respectively under certain medium conditions. The potassium borohydride reaction forms a hydride and a gaseous component, which is carried by the carrier gas (Ar) into the atomizer, and the fluorescence is strong according to the characteristic wavelength of the element to be tested. The content of the element was determined.4 reagentsUnless otherwise stated, only analytically pure reagents and deionized water or water of comparable purity were used in the analysis. 4.1 Nitric acid (ρ1.42g/mL). excellent grade pure. 4.2 Hydrochloric acid (ρ1.19g/mL). excellent grade pure. 4.3 Hydrogen peroxide (30% aqueous solution). 4.4 Hydrochloric acid (1+1). hydrochloric acid (4.2) 500 mL, diluted to 1000 mL with water. 4.5 Hydrochloric acid (1+99). Hydrochloric acid (4.4) 20 mL, diluted to 1000 mL with water. 4.6 Hydrochloric acid (3+197). Hydrochloric acid (4.4) 30 mL, diluted to 1000 mL with water. 4.7 Wangshui. 3 parts of hydrochloric acid (4.2) +1 part of nitric acid (4.1). 4.8 Lean King Water (1+6). 1 part aqua regia (4.7) + 6 parts water. ...... |
