GB/T 26203-2023 English PDF

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GB/T 26203-2023: Paper and board - Determination of internal bond strength (Scott type)
Status: Valid

GB/T 26203: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26203-2023	349	Add to Cart	4 days	Paper and board - Determination of internal bond strength (Scott type)	Valid
GB/T 26203-2010	319	Add to Cart	3 days	Paper and board -- Determination of internal bond strength (Scott type)	Obsolete

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Basic data

Standard ID: GB/T 26203-2023 (GB/T26203-2023)
Description (Translated English): Paper and board - Determination of internal bond strength (Scott type)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y30
Classification of International Standard: 85.060
Word Count Estimation: 18,159
Date of Issue: 2023-09-07
Date of Implementation: 2024-04-01
Older Standard (superseded by this standard): GB/T 26203-2010
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 26203-2023: Paper and board - Determination of internal bond strength (Scott type)

---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 85.060 CCSY30 National Standards of People's Republic of China Replace GB/T 26203-2010 Determination of internal bond strength of paper and paperboard (Scott type) (ISO 16260.2016,Paperandboard- Published on 2023-09-07 2024-04-01 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. This document replaces GB/T 26203-2010 "Determination of internal bonding strength of paper and paperboard (Scott type)" and is consistent with GB/T 26203- Compared with.2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Added terms and definitions (see Chapter 3); b) Method 2 is added as a test method, and the original test method is named Method 1 (see Chapter 6). This document has been modified to adopt ISO 16260.2016 "Determination of internal bond strength of paper and paperboard". Compared with ISO 16260.2016, this document has many structural adjustments. A list of structure number comparisons between the two files is attached. Record A. The technical differences between this document and ISO 16260.2016 and their reasons are as follows. a) ISO 186 (see Chapter 5) was replaced with normatively cited GB/T 450 to adapt to my country’s technical conditions; b) Added the normative reference document GB/T 6892-2015 and deleted the normative reference document EN755-2.2013 (See 6.2.2.2) to improve the operability of this document; c) Replaced ISO 187 (see Chapter 5) with the normatively quoted GB/T 10739 to adapt to my country's technical conditions; d) Method 1 is added, and the method is supplemented according to the domestic instrument usage to conform to my country's national conditions (see 6.1); e) The size of the sample in Method 2 has been changed to (25.4±0.1)mm, unifying the size of the sample in the two test methods for ease of operation (see 6.2); f) The aluminum block/metal flat anvil has been changed, depending on the application situation of domestic manufacturers and in line with my country's national conditions (see 6.2.2.2). The following editorial changes have been made to this document. a) Change the name of the standard to "Determination of Internal Bonding Strength of Paper and Paperboard (Scott Type)"; b) Increased precision (see Appendix B); c) Added instrument compliance verification (see Appendix C). 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 Light Industry Federation. This document is under the jurisdiction of the National Paper Industry Standardization Technical Committee (SAC/TC141). This document was drafted by. Shandong Sun Paper Co., Ltd., Zhuhai Huafeng Paper Co., Ltd., Zhejiang Xiawang Paper Co., Ltd., Sen. Lin Packaging Group Co., Ltd., Shandong Bohui Paper Co., Ltd., China Pulp and Paper Research Institute Co., Ltd., Medium and Light Paper Products Inspection Certification Co., Ltd., Zhangzhou Longwen District Dexing Industry and Trade Co., Ltd., Jinhua Hongxin Paper Co., Ltd., Guangda Paper Products (Zhongshan) Co., Ltd. Company, Guoteng Color Paper Products (Heshan) Co., Ltd., National Paper Quality Inspection and Testing Center. The main drafters of this document. Wang Xinting, Xia Yuan, Niu Li, Xia Wenwen, Ma Hongsheng, Wang Jin, Lu Shiqiang, Dai Huafen, Yin Baochun, Cai Liyong, Xiao Rong, Huang Yaodong, Chen Chaoqi, Jiang Chuanfu, Wen Jianyu, Huang Yaoxing, Yuan Taojing, Zhang Meng. The previous versions of this document and the documents it replaces are as follows. ---First published as GB/T 26203-2010 in.2010; ---This is the first revision. Determination of internal bond strength of paper and paperboard (Scott type)

1 Scope

This document describes two methods for the determination of bond strength within paper and paperboard. This document applies to single-layer and multi-layer paper and board, including coated paper and paper and board covered with polymer films. This document does not apply to handsheets and low-weight, porous, soft or low-density papers and board.

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 450 Collection of paper and cardboard samples and determination of longitudinal, transverse, front and back sides of the sample (GB/T 450-2008, ISO 186. 2002,MOD) GB/T 6892-2015 Aluminum and aluminum alloy extruded profiles for general industrial use GB/T 10739 Standard atmospheric conditions for handling and testing of paper, paperboard and pulp samples (GB/T 10739-2002, eqv ISO 187.1990)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 internal bond strengthinternalbondstrength The average potential energy required to delaminate the specimen under test conditions. Note. The result is the difference between the potential energy of the sample before delamination and the residual energy after delamination, the unit is Joules per square meter (J/m2). 3.2 test assembly testassembly The sample is laminated between two pieces of double-sided tape. The bottom side of the lower tape is adhered to a rigid metal flat anvil. The upper side of the upper tape is adhered to an "L"-shaped aluminum on the block.

4 Principles

The combination of double-sided tape-sample-double-sided tape forms a sandwich structure, which is pressed between a metal flat anvil and an aluminum block. The structure As shown in Figure 1.Hit the inner surface of the upper part of the aluminum block with a pendulum to flip the aluminum block over and destroy the sample in the Z direction (see Figure 2). by measuring the swing The highest position is used to calculate the energy absorbed during the destruction of the sample. Factors that affect the measurement results include. the potential energy of the pendulum in the locked state; The highest position of motion; the energy required for the pendulum to knock down an aluminum block without a sample; friction loss; internal vibration loss of the pendulum; the adhesion of the double-sided tape Attachment. See Appendix B for the precision data of Method 2, and see Appendix C for instrument compliance verification. ......

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