GB/T 14795-2023 English PDFGB/T 14795: Historical versions
Basic dataStandard ID: GB/T 14795-2023 (GB/T14795-2023)Description (Translated English): Natural rubber - Vocabulary Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B72 Classification of International Standard: 01.040.83; 83.060 Word Count Estimation: 126,159 Date of Issue: 2023-11-27 Date of Implementation: 2024-06-01 Older Standard (superseded by this standard): GB/T 14795-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 14795-2023: Natural rubber - Vocabulary---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 01:040:83;83:060 CCSB72 National Standards of People's Republic of China Replace GB/T 14795-2008 natural rubber terminology Published on 2023-11-27 2024-06-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 3:1 Scope and sources of rubber 1 3:2 Properties and early storage of latex 3 3:3 Commercial latex 9 3:4 Production process and equipment of commercial latex12 3:5 Grading and types of raw rubber 16 3:6 Raw rubber production technology and equipment 24 3:7 Application of raw rubber 32 3:8 Latex products 41 3:9 Special and modified rubber 46 3:10 Miscellaneous glue 49 3:11 Physical and chemical properties of rubber and rubber products50 3:12 Mixing agents and other substances 62 Appendix A (informative) List of deleted terms and their definitions70 Appendix B (informative) List of new terms and their definitions 73 Appendix C (Informative) List of changed or redefined terms 80 Reference 88 Index 89ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 14795-2008 "Natural Rubber Terminology": Compared with GB/T 14795-2008, except for structural adjustment and compilation In addition to editorial changes, the main technical changes are as follows: ---Deleted some terms; ---Added terms related to the structure and performance of natural rubber, as well as new natural rubber products, new technologies, new equipment, etc:; ---The definitions of some terms have been changed or redefined: Please note that some content in this document may be subject to patents: The publisher 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 Natural Rubber Sub-Technical Committee of the National Technical Committee for Standardization of Rubber and Rubber Products (SAC/TC35/SC8) Return to home: This document was drafted by: Institute of Agricultural Products Processing, Chinese Academy of Tropical Agricultural Sciences: The main drafters of this document: Yu Heping, Liu Hongchao, Li Jihua, Lu Guang, Li Yimin, and Li Yongzhen: This document was first published in:1993, revised for the first time in:2008, and this is the second revision:IntroductionGB/T 14795 "Natural Rubber Terminology" is a basic standard in the natural rubber standard system: With the continuous development of science and technology, a large number of new products, new technologies and new equipment have appeared in the field of natural rubber: At the same time, a Some products, processing technologies or equipment that are backward or do not meet relevant regulatory requirements have been gradually eliminated: In addition, early definitions of some terms It is not standardized and the definitions of some terms are not accurate: Therefore, it is necessary to revise GB/T 14795-2008 "Natural Rubber Terminology" Revision: Appendix A gives the deleted terms and their definitions in GB/T 14795-2008: Appendix B gives the new terms and their definitions in this document: Appendix C gives terms that have been changed or redefined in this document: natural rubber terminology1 ScopeThis document defines terms and definitions relevant to the natural rubber industry: This document applies to natural rubber and related fields:2 Normative reference documentsThis document has no normative references:3 Terms and definitions3:1 Scope and Source of Rubber 3:1:1 polymerpolymer A substance composed of molecules characterized by multiple repetitions of one or several types of atoms or atomic groups (structural units) connected to each other in a certain number The number of masses, atoms or groups of atoms should be sufficient to provide a group that does not change significantly when one or several structural units are added or removed: performance: [Source: GB/T 9881-2008,2:308] 3:1:1:1 elastomer A polymer material that is significantly deformed by weak stress and can quickly return to its original size and shape after the stress is eliminated: [Source: GB/T 9881-2008,2:147] 3:1:1:2 rubber rubber < Raw Material> The natural or synthetic elastomer that makes up the bulk of the compound used in many rubber products: Note 1: Depending on the context, rubber may have three definitions: It may be the end material of a product or the raw material in the process of producing a certain product: or intermediate materials: This document only defines the term rubber as a raw material: For the definition of rubber as a product term, see GB/T 9881-2008 2:352: Note 2: In Chapter 40 of the International Harmonized System of Customs, rubber is defined as “products, vulcanized or unvulcanized or hard natural rubber, balata, rubber Tapo rubber, guayule, chicle and similar natural rubbers, synthetic rubbers and vulcanized grease derived from petroleum or such recycled substances”: [Source: GB/T 9881-2008, 2:353, with modifications] 3:1:1:2:1 rubber hydrocarbon rubberhydrocarbon An elastomer composed only of carbon and hydrogen: Note 1: For natural rubber, rubber hydrocarbon is a chemically pure polyisoprene with components such as proteins and lipids removed: Note 2: When analyzing and rubber mating, this term is used as a measure of the rubber content excluding other materials used: [Source: GB/T 9881-2008, 2:356, with modifications] ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14795-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 14795-2023_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 14795-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14795-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
