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GB/T 40719-2021 English PDF

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US$334.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40719-2021: Rubber, vulcanized or thermoplastic - Determination of volume and/or surface resistivity
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40719-2021	334	Add to Cart	4 days	Rubber, vulcanized or thermoplastic - Determination of volume and/or surface resistivity	Valid

Similar standards

GB/T 40797 GB/T 40720 GB/T 35858 GB/T 40721

Basic data

Standard ID: GB/T 40719-2021 (GB/T40719-2021)
Description (Translated English): Rubber, vulcanized or thermoplastic - Determination of volume and/or surface resistivity
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G40
Word Count Estimation: 18,162
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40719-2021: Rubber, vulcanized or thermoplastic - Determination of volume and/or surface resistivity

---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.
Rubber, vulcanized or themoplastic - Determination of volume and/or surface resistivity ICS 83.060 CCSG40 National Standards of People's Republic of China Vulcanized rubber or thermoplastic rubber Determination of volume and/or surface resistivity (ISO 14309.2019, IDT) Released on 2021-10-11 2022-05-01 implementation State Administration of Market Supervision and Administration Issued 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 of Standardization Documents" Drafting. The translation method used in this document is equivalent to ISO 14309.2019 ``Volume and/or Surface Resistivity of Vulcanized Rubber or Thermoplastic Rubber Determination". The Chinese documents that have consistent correspondence with the normatively cited international documents in this document are as follows. ---GB/T 2941-2006 Rubber physical test methods, general procedures for sample preparation and adjustment (ISO 23529.2004, IDT); ---GB/T 9881-2008 rubber terminology (ISO 1382.2008, MOD). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is organized by the General Test Methods Subcommittee of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35/SC2) Focus. Drafting organizations of this document. Northwest Rubber and Plastics Research and Design Institute Co., Ltd., Shandong Linglong Tire Co., Ltd., Guangzhou Synthetic Materials Research Institute Co., Ltd., Sailun Group Co., Ltd., Shenyang Rubber Research and Design Institute Co., Ltd., Changzhou Perseverance Fangyuan Composite Technology Co., Ltd., Shanghai Hanhai Testing Technology Co., Ltd., Hebei Huami New Material Technology Co., Ltd., Guizhou Tire Co., Ltd., Beijing Zhongtian Pengyu Technology Development Co., Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd. The main drafters of this document. Huang Lei, Zhu Wei, Li Liang, Zhang Lijie, Yi Jun, Yan Shangkai, Hou Xiaoqian, Dai Lin, Fei Kanghong, Yan Yi, Zhang Meiling, Zeng Lan, Yang Zhuanqing, Li Zangxu, Zhang Heguang, Feng Ping, Song Zhitao, Zou Xinyang, Zhu Dan, Xie Junfang, Sun Siwen.

Introduction

Because rubber has physical properties that other materials do not have, it can be used in combination with other materials to meet the expected product requirements, so Rubber materials are widely used in many industries as auxiliary parts of products or other products. Under normal circumstances, rubber is considered to be an insulating material It is also possible to add a certain amount of carbon black and conductive components to make the rubber conductive and dissipative. Therefore, the range of rubber resistivity It is relatively wide, but it is difficult to accurately measure the higher resistivity due to the influence of some factors. In international standards, a protective electrode system is commonly used to measure the resistivity of rubber test pieces. It is generally believed that this method can effectively avoid dispersion. Current, thereby reducing the error of the test, and the measurement range is also wider (see IEC 62631-3-1). The measurement range of the international standard ISO 1853 includes low to medium conductivity rubber materials, that is, the resistivity is 108Ω·m or lower Resistivity of rubber. The standard describes in detail three methods for measuring the volume resistivity of rubber, which can reduce or eliminate contact resistance. This document is usually used to measure the volume resistivity and surface resistivity of insulating rubber, and the measurement range can cover low resistivity to high electrical resistivity. Resistivity of rubber. The result of the test is very sensitive to the test environment, such as the influence of temperature, humidity, heat source and stress. Vulcanized rubber or thermoplastic rubber Determination of volume and/or surface resistivity Warning 1---The personnel using this document should have practical experience in formal laboratory work. This document does not indicate all possible safety Questions, users are responsible for taking appropriate safety and health measures, and to ensure that they meet the requirements of relevant national laws and regulations. Warning 2-Certain steps specified in this document may involve the use or generation of certain wastes, which may cause harm to the local environment. The relevant documents shall stipulate appropriate safe operation and waste disposal clauses after use.

1 Scope

This document describes the test methods for volume resistivity and/or surface resistivity of vulcanized rubber or thermoplastic rubber. This document is applicable to vulcanized rubber or thermoplastic rubber with resistivity between 101Ω·m and 1017Ω·m.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. ISO 1382 Rubber-Vocabulary ISO 18899.2013 Rubber-Guide to the calibration of test equipment ISO 23529 Rubber-General proceduresforpre- paringandconditioningtestpiecesforphysicaltestmethods)

3 Terms and definitions

The following terms and definitions defined by ISO 1382 apply to this document. ISO and IEC have established terminology databases for standardization purposes. The website is as follows. 3.1 Volume resistance RV The DC voltage applied between the two electrodes that are in contact with the opposite surface of the sample and the current between the two electrodes (excluding the electric current along the surface) Flow) ratio. Note. The unit is ohm (Ω). 3.2 Surface resistance surfaceresistence RS The ratio of the DC voltage to the current between two electrodes applied on the same surface of the sample. Note. The unit is ohm (Ω). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40719-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40719-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40719-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40719-2021_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.