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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 3516-2024: Rubber - Determination of solvent extract Status: Valid GB/T 3516: Historical versions
Basic dataStandard ID: GB/T 3516-2024 (GB/T3516-2024)Description (Translated English): Rubber - Determination of solvent extract Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G40 Classification of International Standard: 83.060 Word Count Estimation: 22,219 Date of Issue: 2024-09-29 Date of Implementation: 2025-04-01 Older Standard (superseded by this standard): GB/T 3516-2006 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 3516-2024: Rubber - Determination of solvent extract---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 Standard of the People's Republic of China Replace GB/T 3516-2006 Determination of solvent extracts from rubber (ISO 1407.2023, IDT) Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued ForewordThis 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 replaces GB/T 3516-2006 "Determination of solvent extracts of rubber". Compared with GB/T 3516-2006, except for structural adjustment In addition to the integration and editorial changes, the main technical changes are as follows. --- Changed the scope and added two test methods, Method B and Method D (see Chapter 1, Chapter 1 of the.2006 edition); --- Deleted Type 1 all-glass extraction device [see 6.1a of the.2006 edition)]; --- Changed the sample mass range of method A from 3g~5g to 2g~5g (see 8.2.2, 8.1.1 of the.2006 edition); --- Changed the number of times the solvent refluxes in the extraction cup in method A from 10 to 20 times per hour to at least 5 times per hour (see 8.2.5, 8.1.3 of the.2006 edition); --- Changed the method for extracting samples in boiling solvents (see 8.4 Method C, 8.2 Method B of the.2006 edition); --- Deleted the error range requirement and replaced it with "precision" (see Chapter 10, 9.4 of the.2006 edition). This document is equivalent to ISO 1407.2023 "Determination of solvent extractables of rubber". The following minimal editorial changes were made to this document. --- In the scope, it is clarified that the two methods applicable to unvulcanized rubber and vulcanized rubber are method A and method B, so that the description More accurate and clear (see Chapter 1); --- Added the recommended recovery bottle and extractor volume notes under the extraction device for ease of use (see Figure 1). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document was prepared by the National Technical Committee for Standardization of Rubber and Rubber Products General Test Methods Subcommittee (SAC/TC35/SC2) Centralized. This document was drafted by. Yiweiyi Rubber Research Institute Co., Ltd., Zhongce Rubber Group Co., Ltd., Sinopec (Beijing) Chemical Research Institute Yanshan Branch of Guangzhou Institute of Synthetic Materials Co., Ltd., Sailun Group Co., Ltd., Guangzhou Institute of Synthetic Materials Co., Ltd., Triangle Tire Co., Ltd. Company, Qingdao Doublestar Tire Industry Co., Ltd., Xuzhou Xulun Rubber Co., Ltd., Shanghai Hanhai Testing Technology Co., Ltd., Shandong Yanggu Huatai Chemical Co., Ltd., Bayi Rubber Co., Ltd., Beijing Academy of Science and Technology Analysis and Testing Institute (Beijing Physical and Chemical Analysis and Testing Center), Dezhou Linglong Tire Co., Ltd., Zhejiang Chuangcheng Auto Parts Co., Ltd., Beijing Rubber Institute Rubber Tire Testing Technology Co., Ltd. Technical Services Co., Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd. The main drafters of this document are. Liu Aiqin, Yuan Chenchen, Gu Ying, Li Jian, Jing Si, Xie Mingjun, Liu Yanyan, Xie Jingjing, Chen Shaoli, Xu Yi, Hou Jingbin, Guo Fei, Liu Li, Wei Bangfeng, Liu Lian, Peng Jin, Yang Zhuanqing, Zhang Xinfeng, Wu Caiying, Yang Shuo, Wei Li, Shao Peng, Xu Wen, Wang Feng, Zhu Guifu, Jin Miaojun, Niu Danwei, Ding Xiaoying, and Wang Na. This document was first published in 1983 as GB 3516-1983, first revised in.1994 as GB/T 3516-1994, and revised in.2006 as GB/T 3516-1994. Second revision, this is the third revision. Determination of solvent extracts from rubber Warning 1---People who use this document should have practical experience in formal laboratory work. This document does not indicate all possible safety For any problems, users are responsible for taking appropriate safety and health measures and ensuring that the conditions stipulated by relevant national laws and regulations are met. Warning 2---The use of the procedures specified in this document may involve the use or generation of some substances, or the generation of waste. This may lead to It may cause harm to the local environment and needs to be handled and disposed of safely with reference to the corresponding documents after use.1 ScopeThis document describes four methods for the quantitative determination of solvent extractables in raw rubber (including natural and synthetic raw rubber). Method A and Method B are also applicable to unvulcanized rubber and vulcanized rubber. Method A determines the ratio of the mass of the extract after solvent evaporation to the mass of the original sample. Method B determines the mass change of the rubber sample before and after extraction. Method C. Extract the sample in a boiling solvent and measure the mass change of the rubber sample before and after extraction. This method is only applicable to raw rubber. Method D is to determine the ratio of the mass change of the rubber sample before and after extraction to the mass of the original sample. This method is only applicable to raw rubber. Note 1.The test results may not be the same due to the different test methods, test conditions and reagents used. Note 2.In general, based on the content and characteristics of the extractables and the diffusion equilibrium, the test results of method C are lower than those of methods A and B (especially for samples However, method C takes less time to test than methods A and B. Note 3.Methods C and D are not applicable to samples that decompose during the extraction process. Note 4.Method D is usually used for product control. Appendix A recommends the most suitable extraction solvent for each rubber.2 Normative referencesThe contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. Note. GB/T 15340-2008 Sampling and preparation methods of natural and synthetic raw rubber (ISO 1795.2000, IDT) ISO 4661-2 Rubber, vulcanized rubber - Preparation of samples and test pieces - Part 2.Chemical tests Note. GB/T 17783-2019 Preparation of chemical test samples and specimens for vulcanized rubber or thermoplastic rubber (ISO 4661-2.2018, MOD)3 Terms and definitionsThere are no terms or definitions that require definition in this document.4 PrincipleThe rubber sample is extracted using a suitable apparatus and solvent. The ratio of the mass of the extract in the solvent after extraction or the mass change of the sample before and after extraction to the mass of the original sample before extraction is calculated. 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