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GB/T 33422-2016: Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method
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| GB/T 33422-2016 | English | 199 |
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Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method
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GB/T 33422-2016
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Basic data | Standard ID | GB/T 33422-2016 (GB/T33422-2016) | | Description (Translated English) | Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G40 | | Classification of International Standard | 83.060 | | Word Count Estimation | 10,147 | | Date of Issue | 2016-12-30 | | Date of Implementation | 2017-07-01 | | Regulation (derived from) | National Standard Notice No.27 of 2016 | | 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 33422-2016: Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method
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Thermoplastic elastomer - Determination of heavy metal contents - Inductively coupled plasma atomic emission spectrometric method
ICS 83.060
G40
National Standards of People's Republic of China
Determination of Heavy Metal Content in Thermoplastic Elastomers
Inductively coupled plasma atomic emission spectrometry
Thermoplasticelastomer-Determination ofheavymetalcontents-
2016-12-30 release
2017-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Petroleum and Chemical Industry Association.
This standard by the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized.
The main drafting of this standard. Zhejiang Sanbo Polymer Co., Ltd., Ningbo Entry-Exit Inspection and Quarantine Bureau Inspection and Quarantine Technology Center, Zhejiang
University of Ningbo Institute of Technology, Shengzhou City Product Quality Supervision and Inspection Institute, Ningbo City Product Quality Supervision and Inspection Institute.
This standard participates in the drafting unit. Ningbo City thermoplastic elastomer Chamber of Commerce, Cixi City, this high polymer plastics Limited.
The main drafters of this standard. Zheng Lin, Feng Zhen, Zhou Zanbin, Luo Yunjie, Wang Minggan, Hu Dongdong, Zhou Xuedong, Wu Xiaohua, He Yifang, Cen Jianda.
Determination of Heavy Metal Content in Thermoplastic Elastomers
Inductively coupled plasma atomic emission spectrometry
1 Scope
This standard specifies the use of inductively coupled plasma atomic emission spectrometry for the determination of thermoplastic elastomers and their products lead, mercury, cadmium, chromium,
Selenium, antimony, barium and arsenic content.
This standard is applicable to the determination of lead, mercury, cadmium, chromium, selenium, antimony, barium and arsenic in thermoplastic elastomers and their products, but is not suitable for determination
The chromium added to the thermoplastic elastomer in the form of chromium trioxide.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
Natural and synthetic raw rubber samples and their preparation methods GB/T 15340
3 method summary
The samples were treated with concentrated nitric acid and digested by microwave. The solution was digested with inductively coupled plasma atomic emission spectrometry (ICP-OES)
The emission intensity of the measured element was measured, and the content of each element was measured according to the standard curve.
4 reagents and materials
4.1 General. Unless otherwise specified, only analytical reagents are used. Preparation of water should be consistent with GB/T 6682 provisions of more than two pure water.
4.2 nitric acid (ρ = 1.40 g/mL).
4.3 nitric acid (5 95).
4.4 standard solution of lead, mercury, cadmium, chromium, selenium, barium and arsenic (1000μg/mL), antimony standard solution (500μg/mL). commercial certified reference substance.
4.5 Mixed standard stock solution (10 μg/mL). Remove the appropriate amount of each standard solution (4.4) in 100 mL of 5 mL of nitric acid (4.2)
The concentration of lead, mercury, cadmium, chromium, selenium, antimony, barium and arsenic is 10 μg/mL in the volume of the flask.
Solution.
5 instruments and equipment
5.1 high-pressure sealed microwave digestion instrument, equipped with temperature or pressure safety control device, the instrument operating conditions see Appendix A.
5.2 Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-OES), see Table B for the operating conditions of the instrument.
5.3 Analysis of the balance (sense of 0.1mg).
6 Sample preparation
Sampling and preparation of samples according to GB/T 15340, thermoplastic elastomer products should be representative of bulk cargo. According to the nature of the sample
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