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GB/T 34438-2017: Determination of cadmium in toy materials -- Flame atomic absorption spectrometry
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| GB/T 34438-2017 | English | 199 |
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Determination of cadmium in toy materials -- Flame atomic absorption spectrometry
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GB/T 34438-2017
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Basic data | Standard ID | GB/T 34438-2017 (GB/T34438-2017) | | Description (Translated English) | Determination of cadmium in toy materials -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y57 | | Classification of International Standard | 97.00.50 | | Word Count Estimation | 10,139 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34438-2017: Determination of cadmium in toy materials -- Flame atomic absorption spectrometry
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Determination of cadmium in toy materials - Flame atomic absorption spectrometry
ICS 97.00.50
Y57
National Standards of People's Republic of China
Determination of cadmium in toy materials
Flame atomic absorption spectrometry
2017-10-14 Published
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the China Light Industry Federation.
This standard by the National Toy Standardization Technical Committee (SAC/TC253) centralized.
This standard was drafted by Shenzhen Entry-Exit Inspection and Quarantine Bureau Toy Testing Technology Center, Bureau Veritas US Product Testing (Shanghai) Co., Ltd.,
Good children's Children's Products Co., Ltd., Guangdong Exit Inspection and Quarantine Inspection and Quarantine Technology Center Toys Baby Products Laboratory, Jiangsu billion Branch
Measurement Technology Services Ltd., Shenzhen Institute of Metrology and Quality Inspection, Commodity Quality Supervision and Inspection Center daily commodity inspection in Zhejiang Province
Test Institute of Science, Beijing Light Alliance Certification Center.
The main drafters of this standard. Liangshuwen, Mai Baohua, Yang Danhua, Zhang Yao, Zou Yu, Hu Juyuan, Chen Dewen, Liao on the rich.
Determination of cadmium in toy materials
Flame atomic absorption spectrometry
Warning --- personnel using this standard should have the formal laboratory work experience. This standard does not indicate all possible safety
problem. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the relevant provisions of the state.
1 Scope
This standard specifies the method of flame atomic absorption spectrometry determination of cadmium content in toy materials.
This standard applies to toys in the coating, plastic (except fluorine plastic), natural or synthetic textiles, paper and cardboard, metal materials, cadmium content
Determination.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 602 chemical reagent impurity standard solution preparation
GB/T 6379.2 accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard measurement methods repeated
The basic method of sexuality and reproducibility
GB/T 6682 analytical laboratory water specifications and test methods
3 principle
Sample using electric heating plate digestion or microwave digestion. Digestion solution was determined by flame atomic absorption spectrometry at a wavelength of 228.8nm,
External standard method to determine the concentration of cadmium in the solution, calculate the content of cadmium in the sample.
4 Reagents and materials
Unless otherwise noted, all reagents are superior grade pure.
4.1 water, at least to meet the three water GB/T 6682 requirements.
4.2 nitric acid, the mass fraction is 65% ~ 68%.
4.3 sulfuric acid mass fraction of 95% to 98%.
4.4 Hydrogen peroxide. The mass fraction is 35%.
4.5 hydrochloric acid mass fraction of 35% to 37%.
4.6 Nitric acid. The volume fraction is 10%.
4.7 sulfuric acid volume fraction is 10%.
4.8 Cadmium standard solution (1000mg/L), according to GB/T 602 preparation or direct purchase with traceability certificate of the standard material.
4.9 Cadmium standard working solution 1. Pipette a certain volume of cadmium standard solution (4.8) in 100mL volumetric flask, diluted with nitric acid (4.6) until engraved
Degree, mixing, formulated into a concentration of 0.05mg/L, 0.1mg/L, 0.2mg/L, 0.5mg/L, 1.0mg/L standard solution.
4.10 Cadmium standard working solution 2. Pipette a certain volume of cadmium standard solution (4.8) in 100mL volumetric flask, diluted with sulfuric acid (4.7) until engraved
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