GB/T 42162-2022 English PDF

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GB/T 42162-2022: Rubber, raw - Determination of residual monomers and other volatile low-molecular-mass compounds by capillary gas chromatography - Thermal desorption(dynamic headspace)method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42162-2022	264	Add to Cart	3 days	Rubber, raw - Determination of residual monomers and other volatile low-molecular-mass compounds by capillary gas chromatography - Thermal desorption(dynamic headspace)method	Valid

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Basic data

Standard ID: GB/T 42162-2022 (GB/T42162-2022)
Description (Translated English): Rubber, raw - Determination of residual monomers and other volatile low-molecular-mass compounds by capillary gas chromatography - Thermal desorption(dynamic headspace)method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G35
Classification of International Standard: 83.040.10
Word Count Estimation: 14,132
Date of Issue: 2022-12-30
Date of Implementation: 2023-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42162-2022: Rubber, raw - Determination of residual monomers and other volatile low-molecular-mass compounds by capillary gas chromatography - Thermal desorption(dynamic headspace)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.
ICS 83.040.10 CCSG35 National Standards of People's Republic of China Determination of residual monomers and Other volatile low molecular weight compounds Thermal desorption (dynamic headspace) method (ISO 17052.2007, IDT) Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 1 5 Reagent 2 6 Instrument 2 7 Preparation of the instrument 2 8 Calibration 2 9 Test Step 3 10 Precision 4 11 Test report 4 Appendix A (Normative) Butadiene Rubber (BR, SBR, NBR) Test Details 5 Appendix B (Normative) Non-butadiene rubber (EPDM, EOM) test details 6 Appendix C (Informative) Precision of Residual Monomer 7 Reference 11

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document is equivalent to ISO 17052.2007 "Determination of residual monomers and other volatile low molecular weight by capillary gas chromatography of raw rubber Thermal Desorption of Compounds (Dynamic Headspace) Method. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is sponsored by the Synthetic Rubber Sub-Technical Committee of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35/SC6) Focus on. This document is drafted by. China National Petroleum Corporation Petrochemical Research Institute, Yiweiyi Rubber Research Institute Co., Ltd., Shen Hua Chemical Industry Co., Ltd., China Petroleum Engineering Technology Research Institute Co., Ltd., China National Petroleum Corporation Daqing Refining & Chemical Co., Ltd. Branch, Petrochemical Research Institute Co., Ltd. of China National Petroleum Corporation. The main drafters of this document. Qin Peng, Geng Zhanjie, Fan Guoning, Wang Fang, Li Xiaoyin, Wu Yi, Zhai Yueqin, Lu Yanyan, Jia Huiqing, Hu Haihua, Chen Heping. Determination of residual monomers and Other volatile low molecular weight compounds Thermal desorption (dynamic headspace) method Caution --- Personnel using this document should have practical experience in formal laboratory work. This document does not address all possible security issues question. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. Note --- Some steps specified in this document may involve the use or generation of some substances or wastes that are harmful to the local environment. use Documentation for safe handling and disposal should be consulted afterwards.

1 Scope

This document specifies a thermal desorption (dynamic headspace)-capillary column gas chromatography analysis technique for the determination of residual monomers and Methods for other volatile low-molecular-weight compounds, including general sections applicable to all types of raw rubber and types-specific sections Two appendices. The advantage of this method is that no solvent is needed, and the volatile compounds can be concentrated and accurately introduced into the gas chromatograph. This document is applicable to the determination of residual monomers, solvents and other low components with a boiling point range between C4~C12 hydrocarbons in raw rubber quantum compound. Note. The detection limit of this method is 1 μg/g.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. Note. GB/T 15340-2008 Natural and synthetic raw rubber sampling and sample preparation method (ISO 1795.2000, IDT) ISO 2393 Rubber test compound batching, mixing and vulcanization equipment and operating procedures (Rubbertestmixes- Note. GB/T 6038-2006 Rubber test rubber batching, mixing and vulcanization equipment and operating procedures (ISO 2393.1994, MOD)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 The ratio of the response of the analyte to the calibrator.

4 principles

The sample is heated to a specified temperature in the carrier gas flow and maintained for a period of time, and the volatile compounds are captured by the cold trap along with the carrier gas flow. cold trap in ......

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