GB/T 41946-2022 English PDF

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GB/T 41946-2022: Rubber - Determination of total sulfur content - Ion chromatography method
Status: Valid

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GB/T 41946-2022	334	Add to Cart	4 days	Rubber - Determination of total sulfur content - Ion chromatography method	Valid

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Basic data

Standard ID: GB/T 41946-2022 (GB/T41946-2022)
Description (Translated English): Rubber - Determination of total sulfur content - Ion chromatography method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G40
Classification of International Standard: 83.060
Word Count Estimation: 18,172
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 41946-2022: Rubber - Determination of total sulfur content - Ion chromatography 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 83.060 CCSG40 National Standards of People's Republic of China Determination of total sulfur content in rubber by ion chromatography chromatography, IDT) Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

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 19242.2021 "Determination of Total Sulfur Content by Ion Chromatography in Rubber". The following minimal editorial changes have been made to this document. --- In order to coordinate with the national standard, change the name of the standard to "Ion Chromatography for Determination of Total Sulfur Content in Rubber". 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 General Test Method Subcommittee of National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35/SC2) Focus on. This document is drafted by. Beijing Rubber Industry Research and Design Institute Co., Ltd., Shandong Linglong Tire Co., Ltd., Qingdao Junxiang Technology Co., Ltd., Hangzhou Chaoyang Rubber Co., Ltd., Sailun Group Co., Ltd., Triangle Tire Co., Ltd., Guizhou Tire Co., Ltd. Company, Beijing Institute of Science and Technology Analysis and Testing Institute (Beijing Physical and Chemical Analysis and Testing Center), Double Star Group Co., Ltd., Qing Island Shenghan Chromatography Technology Co., Ltd., Metrohm China Co., Ltd., Shimadzu Enterprise Management (China) Co., Ltd. The main drafters of this document. Cang Feifei, Zhang Yuedi, Zhang Lijie, Chen Xuemei, Rong Xianchao, Zhang Jie, Chen Jiahui, Jin Zhenhuan, Liu Yanyan, Xu Yi, Xu Qiuhuan, Kuang Chunfu, Song Chengyang, Shao Peng, Wang Ying, Guo Fei, Wu Yan, Zhang Jinmei, Zhu Xinyong, Wang Ning, Song Bingxin, Li Yan, Jiang Feifei, Ding Xiaoying, Wang Na. Determination of total sulfur content in rubber by ion chromatography Warning 1 --- Personnel using this document need to have practical experience in formal laboratory work. This document does not identify all possible security In case of safety issues, the user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in the relevant national laws and regulations. WARNING 2—The use of this document presupposes that the analyst has sufficient working knowledge of ion chromatography principles and techniques to perform Operate as described and correctly interpret test results. Note --- The use of procedures specified in this document may involve the use or generation of some substances, or may generate some waste. Here is It may cause local environmental hazards, and it is necessary to refer to the corresponding documents for safe handling and disposal after use.

1 Scope

This document describes a method for the determination of the total sulfur content of raw and vulcanized rubber or rubber mixes by ion chromatography, in which the sample solution is passed through a tube furnace Combustion method or oxygen bottle combustion method. The tube furnace combustion method is suitable for rubber samples with a total sulfur content of less than 0.1%, because the determination results of the oxygen bottle combustion method may not be accurate enough. The oxygen bottle combustion method is not suitable for rubber containing metal salts and forming insoluble metal sulfates [such as barium sulfate (CAS7727-43-7)].

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) and testmethods) Note. GB/T 6682-2008 Analytical Laboratory Water Specifications and Test Methods (ISO 3696.1987, MOD) ISO 4661-2 Preparation of samples and test pieces of vulcanized rubber or thermoplastic rubber - Part 2.Chemical tests (Rubber, vulcan- Note. Preparation of GB/T 17783-2019 Vulcanized Rubber or Thermoplastic Rubber Chemical Test Samples and Test Specimens (ISO 4661-2.2018, MOD)

3 Terms and Definitions

This document does not have terms and definitions that need to be defined.

4 principles

4.1 Combustion 4.1.1 Tube furnace combustion method Put the sample into a tube furnace with electric heating and burn it in oxygen (CAS7782-44-7). The sulfur in the sample is oxidized to sulfur dioxide ......

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