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SN/T 3249-2012: Imitation jewelry and accessory. Determination of Lead, Cadmium and Barium. Flame atomic absorption spectrometric method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 3249-2012 | English | 189 |
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Imitation jewelry and accessory. Determination of Lead, Cadmium and Barium. Flame atomic absorption spectrometric method
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SN/T 3249-2012
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Basic data | Standard ID | SN/T 3249-2012 (SN/T3249-2012) | | Description (Translated English) | Imitation jewelry and accessory. Determination of Lead, Cadmium and Barium. Flame atomic absorption spectrometric method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y88 | | Word Count Estimation | 7,713 | | Quoted Standard | GB/T 6682; GB/T 22788-2008; SN/T 2046-2008 | | Regulation (derived from) | National Quality Inspection (2012) 643; industry standard filing Notice 2013 No. 1 (No. 157 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the imitation jewelry alloys, polymers, coatings, ceramics, glass, crystal, and other similar materials of lead, cadmium, barium total content by flame atomic absorption spectrometric method. This standard applies to imitation jewe | SN/T 3249-2012: Imitation jewelry and accessory. Determination of Lead, Cadmium and Barium. Flame atomic absorption spectrometric method
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Imitation jewelry and accessory.Determination of Lead, Cadmium and Barium.Flame atomic absorption spectrometric method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of imitation jewelry of lead, cadmium, barium content
Flame Atomic Absorption Spectrometry
Issued on. 2012-10-23
2013-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong Entry-Exit Inspection and Quarantine Shandong People's Republic of China
Bureau, Chinese Academy of Inspection and Quarantine.
The main drafters of this standard. Liuchong Hua Fang Han, Xing force, Zhang, Huang Li Na, birch, Yangdan Hua.
Determination of imitation jewelry of lead, cadmium, barium content
Flame Atomic Absorption Spectrometry
1 Scope
This standard specifies the alloy simulation jewelry, polymer, coatings, ceramics, glass, crystal and other similar materials as lead, cadmium, barium total content
Flame atomic absorption spectrometric method.
This standard applies to imitation jewelry alloys, polymers, coatings, ceramics, glass, crystal and other materials of lead, cadmium, barium Determination,
Cadmium Lead, barium limit was 20mg/kg, 2mg/kg and 30mg/kg.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
Determination of GB/T 22788-2008 toy surface coatings of the total lead content
SN/T 2046-2008 Plastics and articles thereof measured inductance of lead, mercury, chromium, cadmium, barium, arsenic coupled plasma atomic emission light
Spectroscopy
Principle 3
Sample pulverized After acid digestion, atomic absorption spectrometer, external standard method for quantitative determination of lead, cadmium, barium.
4 Reagents
Unless otherwise specified, use only analytical reagent and in line with two water GB/T 6682 regulations.
4.1 nitric acid (65% mass fraction).
4.2 hydrochloric acid (37% mass fraction).
4.3 fluoroboric acid (40% mass fraction).
4.4 Hydrofluoric acid (40% mass fraction).
4.5 boric acid (4% mass fraction).
4.6 Hydrogen peroxide (30% mass fraction).
4.7 KCl. 20g/L.
4.8 nitric acid (119).
4.9 Standard solution. lead, cadmium, barium standard solution (1000μg/mL), with a traceable certificate.
4.10 standard solution. Pipette a volume of standard stock solution (4.9) in 100mL volumetric flask (4.8) with nitric acid diluted to the mark
Degree of mixing, so that the concentration meets requirements of Table 1. Wherein the element barium standard solution should be added 10mL potassium chloride solution (4.7), such that
Dilution constant volume of a solution containing 2g/L KCl.
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