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GB/T 42921-2023 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42921-2023: Optical functional films - Polyethylene terephthalate(PET) film - The adhesive force measurement of protective film
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42921-2023	189	Add to Cart	3 days	Optical functional films - Polyethylene terephthalate(PET) film - The adhesive force measurement of protective film	Valid

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Basic data

Standard ID: GB/T 42921-2023 (GB/T42921-2023)
Description (Translated English): Optical functional films - Polyethylene terephthalate(PET) film - The adhesive force measurement of protective film
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.99
Word Count Estimation: 10,15
Date of Issue: 2023-08-06
Date of Implementation: 2024-03-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42921-2023: Optical functional films - Polyethylene terephthalate(PET) film - The adhesive force measurement of protective film

---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 71.080.99 CCSG15 National Standards of People's Republic of China Optical functional film polyethylene terephthalate (PET) film protective film adhesion test method Published on 2023-08-06 2024-03-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. 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 under the jurisdiction of the National Standardization Technical Committee for Optical Functional Thin Film Materials (SAC/TC431). This document was drafted by. Hefei Lekai Technology Industry Co., Ltd., Kunshan Lekai Jinfu Optoelectronics Technology Co., Ltd., Maxim New Materials Co., Ltd. Co., Ltd., Zhejiang Yaoyang New Material Technology Co., Ltd., Shenzhen Zongheng Standard Technology Co., Ltd., Dongguan Guangzhi Optoelectronics Co., Ltd., Kai Xinsen (Shanghai) Functional Film Industry Co., Ltd. The main drafters of this document. Zhou Shoufa, Tian Wei, Wei Xing, An Jiali, Niu Zhengfu, Liu Hongmei, Sun Luyang, Chen Weibin, Yao Yifan, Li Wenzhan, Zhao Jianming, Luo Huibin, Cao Jian. Optical functional film polyethylene terephthalate (PET) film protective film adhesion test method

1 Scope

This document describes the method for measuring the adhesion of optical polyethylene terephthalate (PET) protective films, including instruments and equipment, sample preparation equipment, test environment, operating procedures, result calculations and test reports. This document is suitable for testing the adhesion of optical PET protective films using an electronic tensile testing machine.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 1040.3 Determination of tensile properties of plastics Part 3.Test conditions for films and sheets GB/T 2792 Test method for peel strength of adhesive tapes GB/T 2918 Standard environment for conditioning and testing of plastic specimens

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 adhesive forceadhesiveforce Under the specified peeling conditions, when the optical PET protective film sample attached to the sample plate is separated from the sample plate, the width of 25mm bearable load. Note. The width and length of the sample refer to GB/T 2792.The unit of adhesion force is expressed in Newtons per 25 mm (N/25mm).

4 Instruments and Equipment

4.1 Pressure roller Should comply with GB/T 2792. 4.2 Electronic tensile testing machine 4.2.1 The electronic tensile testing machine should ensure that the failure load of the sample meets the conditions, between 5% and 90% of the full standard load, and the error in the tensile force indication should not exceed It should be greater than 1%, and the tensile speed of the electronic tensile testing machine should be continuously peeled off at (300±5)mm/min. 4.2.2 The electronic tensile testing machine should have the data processing function to automatically record and analyze the peeling load. 4.2.3 When collecting data from the electronic tensile testing machine, the time interval between each data collection shall not exceed 100ms, and the value interval shall be set.

5 Sample preparation

5.1 The sample should be flat, uniform, and free of visible defects such as bubbles. According to the requirements of GB/T 1040.3, the sampling width of the sample is (25±1)mm. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42921-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42921-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42921-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42921-2023_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.