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GB/T 42519-2023 English PDF

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US$804.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42519-2023: Rubber - Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42519-2023	804	Add to Cart	6 days	Rubber - Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers	Valid

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Basic data

Standard ID: GB/T 42519-2023 (GB/T42519-2023)
Description (Translated English): Rubber - Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G40
Classification of International Standard: 83.060
Word Count Estimation: 43,468
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42519-2023: Rubber - Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers

---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 Rubber is used to characterize the effect of liquids on vulcanized rubber Standard Reference Elastomers (SREs) (ISO 13226:2018, IDT) Released on 2023-05-23 2023-12-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Composition Recipe 2 5 sample preparation 2 6 Description 3 7 Test piece performance 3 8 named 3 9 storage 3 Appendix A (Normative) Acrylic Rubber: SRE-ACM/1 and SRE-ACM/1X 4 Appendix B (Normative) Acrylonitrile-butadiene rubber: SRE-NBR28/P and SRE-NBR28/PX 7 Appendix C (Normative) Acrylonitrile-butadiene rubber: SRE-NBR28/S, SRE-NBR28/SX, SRE-NBR34/S and SRE-NBR34/SX11 Appendix D (Normative) Acrylonitrile-butadiene rubber: SRE-NBR/M 16 Appendix E (Normative) Acrylonitrile-butadiene rubber: SRE-NBR/L 18 Appendix F (Normative) Chlorinated butyl rubber: SRE-CIIR/1 20 Appendix G (Normative) Neoprene: SRE-CR/1 22 Appendix H (Normative) Ethylene-Propylene Rubber: SRE-EPM/1 24 Appendix I (Normative) Viton: SRE-FKM/1 26 Appendix J (Normative) Viton: SRE-FKM/2X 28 Appendix K (Normative) Hydrogenated Acrylonitrile-Butadiene Rubber: SRE-HNBR/1 and SRE-HNBR/1X 31 Appendix L (Normative) Natural Rubber: SRE-NR/1 34 Appendix M (Normative) Silicone Rubber: SRE-MQ/1 36 Appendix N (Normative) Silicone Rubber: SRE-VMQ/1 and SRE-VMQ/1X 37

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 13226:2018 "Rubber is used to characterize the influence of liquid on vulcanized rubber (SREs)”: The following minimal editorial changes have been made to this document: ---In the first paragraph of all appendices, the name of the rubber type is uniformly expressed in the form of "Chinese name (English letter abbreviation)" for easy understanding and use; ---Added the content of footnote e in Table C:1 "When using TBzTD, it is advisable to increase the mass fraction of carbon black so that the performance of the test piece conforms to Table C:3 Requirements for the additional performance of the initial form”; --- Added the footnote content of the article "The product information may change, and it needs to be selected according to the actual situation": 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: China National Petroleum Corporation Petrochemical Research Institute, Sailun Group Co:, Ltd:, Guizhou Lun Tire Co:, Ltd:, Hangzhou Chaoyang Rubber Co:, Ltd:, Jiangsu Mingzhu Testing Machinery Co:, Ltd:, Weihai Junle Tire Co:, Ltd:, Zhejiang Branch Dali Industrial Co:, Ltd:, Zhejiang Shangyu Oil Seal Manufacturing Co:, Ltd:, Guangzhou Liangheng Testing Technology Service Co:, Ltd:, Beijing Rubber Industry Research Institute Research Design Institute Co:, Ltd: The main drafters of this document: Chen Haihua, Zhai Yueqin, Zhang Yu, Zhang Dongxia, Feng Ping, Yin Zhi, Fang Yuequan, Lu Qing, Zhang Awei, Zhu Muzhi, Wang Jianfeng, Yao Wenjie, Zhou Hongzhi, Li Yaogang, Huang Shundao, Yuan Shuang, Xie Junfang, Sun Siwen:

Introduction

With the continuous development of science and technology, the requirements for rubber products in various fields are getting higher and higher: In mechanical engineering, automotive, aerospace and many other In the field of parts in contact with petroleum products, rubber products are often used as liquid-resistant materials, and the service life and safety of rubber products Both are closely related to its liquid resistance, so the liquid resistance of rubber has been regarded as one of the important parameters to evaluate the performance of rubber: Although Oak There are related detection methods for the liquid resistance of rubber, but because there is no standard reference material as a reference, the grade evaluation of rubber liquid resistance Judgment and the impact of different working fluids on the liquid resistance of rubber cannot be accurately determined: To address these issues, documentation of standard reference elastomers for characterizing the effects of liquids on vulcanizates is required: in this document The standard reference elastomer provided can represent the vulcanized rubber to be tested under the same conditions, and the obtained results can be judged to be the same or related The liquid resistance of the rubber to be tested provides data support: At the same time, it can also be used to characterize the standard reference bomb by characterizing different working liquids or test liquids: To provide producers and users of commercial working fluids with relevant data on differences in fluid performance or fluid specification characteristics Provide technical support for the production and research and development of working fluids or test fluids: The material covered by this document is specified in Appendices A through N: The compounding and preparation process ensures that the performance characteristics of the material are fully consistent with those of the represented material group, while the simple formulation ensures Reliable reproducibility is guaranteed: Rubber is used to characterize the effect of liquids on vulcanized rubber Standard Reference Elastomers (SREs) Caution 1 --- Personnel using this document should have practical experience in formal laboratory work: This document does not indicate all possible safety In case of problems, 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 --- Some of the steps specified in this document may involve the use or generation of certain wastes, which may cause harm to the local environment: Appropriate safe handling and post-use disposal of waste should be specified in relevant documents:

1 Scope

This document specifies requirements for standard sheet vulcanizates for characterizing resistance to test and operating fluids: This document is not intended to provide compositional formulations of elastomeric products for practical application:

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: GB/T 533-2008 Determination of density of vulcanized rubber or thermoplastic rubber (ISO 2781:2007, IDT) Note: GB/T 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber (ISO 37:2005, IDT) ISO 48 Determination of hardness of vulcanized rubber or thermoplastic rubber (10IRHD~100IRHD) [Rubber, vulcanizedor Note: GB/T 6031-2017 Determination of hardness of vulcanized rubber or thermoplastic rubber (10IRHD~100IRHD) (ISO 48:2010, IDT) Note: GB/T 1690-2010 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber (ISO 1817:2005, MOD) Note: GB/T 20739-2006 Guidelines for Storage of Rubber Products (ISO 2230:2002, 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) ISO 7619-1 Test methods for indentation hardness of vulcanized or thermoplastic rubber - Part 1: Shore durometer method (Shore hardness) Note: GB/T 531:1-2008 Test method for indentation hardness of vulcanized rubber or thermoplastic rubber Part 1: Shore durometer method (Shore hardness) (ISO 7619-1:2004, IDT) Note: GB/T 2941-2006 Rubber Physical Test Methods Specimen Preparation and Adjustment General Procedures (ISO 23529:2004, IDT) ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42519-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42519-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42519-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42519-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.