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| SN/T 1841-2006 | English | 239 |
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Determination of cadmium in materials. Flame atomic absorption spectrometry
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SN/T 1841-2006
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Basic data | Standard ID | SN/T 1841-2006 (SN/T1841-2006) | | Description (Translated English) | Determination of cadmium in materials. Flame atomic absorption spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G04;Y57 | | Classification of International Standard | 71.040.01 | | Word Count Estimation | 6,669 | | Date of Issue | 2006-11-10 | | Date of Implementation | 2007-05-16 | | Quoted Standard | GB/T 6682; GB/T 9758.4 | | 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 flame atomic absorption spectrophotometry cadmium in toy materials. This standard applies to paint and similar materials, plastics and similar materials (except polyvinyl fluoride plastic), natural or synthetic textile materials and paper and cardboard in the cadmium content. Determination of the standard lower limit 10mg/kg. | SN/T 1841-2006: Determination of cadmium in materials. Flame atomic absorption 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 cadmium in materials.Flame atomic absorption spectrometry
Book of the People's Republic of China Entry and Exit Inspection and Quarantine
Determination of cadmium content in toy materials
Flame atomic absorption spectrophotometry
Released on.2006-11-10
2007-05-16 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Shenzhen Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Li Xuan, Jiang Liyuan, Liang Shuwen, Zhang Bin, Lu Yu, Mu Junze.
This standard is the first industry standard for entry-exit inspection and quarantine.
Determination of cadmium content in toy materials
Flame atomic absorption spectrophotometry
1 Scope
This standard specifies the determination of cadmium in toy materials by flame atomic absorption spectrophotometry.
This standard applies to paints and similar materials, plastics and similar materials (except polyfluoroplastics), natural or synthetic textiles and paper and cardboard.
Determination of cadmium content.
The lower limit of determination of this standard is 10mg/kg.
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
GB/T 6682 Analytical laboratory water specifications and test methods (NEQISO 3696.1987)
Paints and varnishes - Determination of cadmium content - Part 4. Determination of cadmium content
Spectroscopy and polarography (IDTISO 3856.4. 1984)
3 Method summary
Paints and similar materials in toy materials are digested by concentrated nitric acid wet digestion; concentrated sulfur is used for plastics, textiles, paper and similar materials.
Acid and hydrogen peroxide wet digestion method digestion; digestion solution is measured by atomic absorption spectrometry at a wavelength of 228.8 nm, compared with the standard series
More quantitative.
4 reagents
Analytically pure reagents are used unless otherwise specified.
4.1 Water, at least to the Class 3 purity specified in GB/T 6682.
4.2 Nitric acid. ρ = 1.40 g/mL.
4.3 Sulfuric acid. ρ = 1.83 g/mL.
4.4 Hydrogen peroxide. ρ = 1.10 g/mL.
4.5 Cadmium standard stock solution. 1000mg/L.
4.6 Cadmium standard working fluid. 0.1mg/L, 0.2mg/L, 0.4mg/L.
5 instruments
5.1 Flame atomic absorption spectrometer (with background correction function, equipped with cadmium hollow cathode lamp).
5.2 Analytical balance with an accuracy of 1 mg.
5.3 Filter filter with a pore size of 0.45 μm.
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