GB/T 33422-2016 English PDF

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GB/T 33422-2016: Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33422-2016	199	Add to Cart	3 days	Thermoplastic elastomer -- Determination of heavy metal contents -- Inductively coupled plasma atomic emission spectrometric method	Valid

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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

---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.
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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