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Determination of lead, mercury, chromium, cadmium and bromine in electrical and electrical and electronic equipment. Part 5: Qualitative screening by energy dispersive X-ray fluorescence spectrometric method
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SN/T 2003.5-2006
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Basic data | Standard ID | SN/T 2003.5-2006 (SN/T2003.5-2006) | | Description (Translated English) | Determination of lead, mercury, chromium, cadmium and bromine in electrical and electrical and electronic equipment. Part 5: Qualitative screening by energy dispersive X-ray fluorescence spectrometric method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G04;L04 | | Classification of International Standard | 71.040; 31.020 | | Word Count Estimation | 7,771 | | Date of Issue | 2006-11-10 | | Date of Implementation | 2007-05-16 | | Quoted Standard | GB/T 8170; GB/T 15000.5; GB/T 16597 | | Regulation (derived from) | Chinese industry standards for record 2007 of 3 (total of 87) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the use of energy dispersive X-ray fluorescence spectroscopy of screening for electrical and electronic products authorized lead, mercury, chromium, cadmium and bromine method. This standard applies to electrical and electronic products, lead, mercury, chromium, cadmium and bromine quantitative screening. Used in this part of the analyte concentration range shown in Table 1. | SN/T 2003.5-2006: Determination of lead, mercury, chromium, cadmium and bromine in electrical and electrical and electronic equipment. Part 5: Qualitative screening by energy dispersive X-ray fluorescence spectrometric method
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Determination of lead, mercury, chromium, cadmium and bromine in electrical and electrical and electronic equipment. Part 5. Qualitative screening by energy dispersive X-ray fluorescence spectrometric method
Book of the People's Republic of China Entry and Exit Inspection and Quarantine
Determination of lead, mercury, chromium, cadmium and bromine in electrical and electronic products
Part 5. Energy dispersive X-ray fluorescence spectrometry
Quantitative screening
Released on.2006-11-10
2007-05-16 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This part is the fifth part of SN/T 2003.
Appendix A of this section is an informative annex.
This part is proposed and managed by the National Certification and Accreditation Administration.
This section drafted by. Zhejiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shanghai Entry and Exit Inspection of the People's Republic of China
Epidemic situation.
The main drafters of this section. Zhu Xiaoyu, Zhou Min, Yi Yi, Wei Biwen, Yuan Jing, Yan Junwen.
This section is the first industry standard for entry-exit inspection and quarantine.
Determination of lead, mercury, chromium, cadmium and bromine in electrical and electronic products
Part 5. Energy dispersive X-ray fluorescence spectrometry
Quantitative screening
1 Scope
This section specifies the determination of lead, mercury, chromium, cadmium and bromine in electrical and electronic products by energy dispersive X-ray fluorescence spectrometry.
method.
This section applies to the quantitative screening of lead, mercury, chromium, cadmium and bromine in electrical and electronic products.
The concentration range of the elements to be tested applicable in this section is shown in Table 1.
Table 1 Quantitative screening of lead, mercury, chromium, cadmium and bromine in different matrix materials. The measurement unit is in milligrams per kilogram.
Elemental polymer material, metal product, electronic component
Cd P≤(70-3σ)< X< (130+3σ)≤FP≤(70-3σ)< X< (130+3σ)≤F LOD< X< (250+3σ)≤F
Pb P≤(700-3σ)< X< (1300+3σ)≤FP≤(700-3σ)< X< (1300+3σ)≤FP≤(500-3σ)< X< (1500+3σ)≤F
Hg P≤(700-3σ)< X< (1300+3σ)≤FP≤(700-3σ)< X< (1300+3σ)≤FP≤(500-3σ)< X< (1500+3σ)≤F
Br P≤(300-3σ)< X - P≤(250-3σ)< X
Cr P≤(700-3σ)< XP≤(700-3σ)< XP≤(500-3σ)< X
Note 1. X indicates the measured value of the element to be tested, P indicates acceptance, and F indicates failure.
Note 2. LOD indicates the detection limit of the element, and 3σ indicates the precision.
2 Normative references
The terms in the following documents become the provisions of this section by reference to this part of SN/T 2003. Quotations with dated
, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouragement is achieved under 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 8170 numerical rounding rules
GB/T 15000.5 standard sample working guide (5) chemical composition standard sample technical general rules
GB/T 16597 Methods of analysis of metallurgical products - General rules for X-ray fluorescence spectrometry
3 Method summary
The primary X-rays emitted by the X-ray tube are incident on the sample, and the sample elements are excited to emit fluorescent X-rays, and are associated with primary X-rays.
The scattered rays enter the detector together for photoelectric conversion, and the output pulse of the detector is amplified by the amplitude of the amplifier and the amplitude of the pulse height analyzer.
After screening, the data is processed by the computer and the result is output.
4 reagents and materials
4.1 Chromium oxide, cadmium oxide, lead oxide, oxidized mercury and potassium bromide. analytical grade.
4.2 Anhydrous lithium tetraborate. analytically pure, burned at 700 ° C for 2 h before use.
4.3 Helium. Purity >99.9%.
4.4 Reference material. A certified reference material or reference standard substance containing five elements of lead, mercury, chromium, cadmium and bromine.
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