GB/T 20027.1-2025 English PDFGB/T 20027.1: Historical versions
Basic dataStandard ID: GB/T 20027.1-2025 (GB/T20027.1-2025)Description (Translated English): Rubber- or plastics-coated fabrics - Determination of bursting strength - Part 1:Steel-ball method Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 20027.1-2016 GB/T 20027.1-2016: Rubber-or plastics-coated fabrics -- Determination of bursting strength -- Part 1: Steel-ball method---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-or plastics-coated fabrics - Determination of bursting strength - Part 1. Steel-ball method ICS 59.080.40 G42 National Standards of People's Republic of China Part of the replacement GB/T .20027-2005 Determination of rupture strength of rubber or plastic coated fabrics Part 1. Ball method Part 1. Steel-balmethod (ISO 3303-1..2012, IDT) 2016-10-13 released 2017-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released ForewordGB/T .20027 "Rubber or plastic coated fabric rupture strength of the determination" is divided into two parts. - Part 1. Ball method; Part 2. Hydraulic method. This part is part 1 of GB/T .20027. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part of the part of GB/T .20027-2005 "rubber or plastic coated fabric rupture strength determination", and GB/T .20027- 2005 compared to the main technical changes as follows. --- the scope of application to do a certain adjustment, delete the method B; - a diameter of the ball is added to the test instrument (see 4.2); - modified the requirements for sample preparation (see Chapter 6, Chapter 5 of the.2005 edition); - modified the requirements of the test process (see Chapter 9, Chapter 8 of the.2005 edition); - modified the contents of the test report (see Chapter 10, Chapter 9 of the.2005 edition). This part uses the translation method equivalent to ISO 3303-1..2012 "Rubber or plastic coated fabric rupture strength determination Part 1 Points. steel ball method ". In this part of the normative reference to the international documents have a consistent correspondence between the following documents. Standard environment for adjustment and testing of rubber or plastic coated fabrics (ISO 2231. 1989, IDT) GB/T 24133-2009. This section is proposed by the China Petroleum and Chemical Industry Association. This part of the National Rubber and Rubber Products Standardization Technical Committee Coating Products Subcommittee (SAC/TC35/SC10) Go back. This part of the drafting unit. Shenyang Rubber Research and Design Institute Co., Ltd., Yantai Sunny Rubber Co., Ltd. The main drafters of this part. Zhao Bodan, Fei Kanghong, Ma Ying, Hong Zhiqiang, Wang Jun, An Xhang, Jiang Tianxiang. This part of the previous version of the standard to replace the release of the situation. --- GB/T .20027-2005.IntroductionThe rupture strength of the coated fabric is often used to determine a magnitude of the multidirectional modulus of the material, rather than providing a coating The strength of the fabric on a plane. In addition, the rupture strength test is more suitable for testing contraction-prone materials, such as knitted fabrics The coated fabric of the material. The steel ball method described in this section applies to simulating actual mechanical damage. Determination of rupture strength of rubber or plastic coated fabrics Part 1. Ball method1 ScopeThis part of GB/T .20027 specifies the test method for the determination of the rupture strength of rubber or plastic coated fabrics by means of mechanical ball means.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. ISO 2231 rubber or plastic coated fabric adjustment and testing of the standard environment (Rubber-orplastics-coatedfabrics- Standardatmospheresforconditioningandtesting)3 principleThe specimen is firmly clamped between the annular clamps with precisely coaxial. A polished steel ball is applied to the specimen at a constant speed Until the rupture. Record the force at which the rupture occurs and the displacement of the ball.4 test equipment4.1 test machine, the use of power transmission and assembly of the appropriate dynamometer. During the test, the test machine should be able to keep the moving clamps there is a basic Constant speed of movement, and should be equipped with automatic recorder. It is best to use a non-inertial dynamometer (eg electronically controlled or optically). If used Pendulum inertial dynamometer, due to the impact of friction and inertia, in fact can be different results. When you have to use inertial dynamometer , Should use the variable test machine, the test machine range or the selected measurement scale should ensure that the rupture strength in the rated range of 15% ~ 85% between. The accuracy of the test machine shall be such that the measured force recorded or recorded does not exceed 2% of the indicated value or 0.5% of the maximum scale One of the larger measurement error prevail. 4.2 rupture test accessories (see Figure 1), the sample with an inner diameter of 45mm ± 0.5mm ring clamp firmly clamped, the sample center pressure to the straight Diameter 25.2mm ± 0.02mm on the polished steel ball until the sample rupture. The direction of movement of the ring clamp or the ball should be in the plane of the fabric vertical. The gripping surfaces of the upper and lower splints shall be concentric and corrugated so that the raised portion of a plate of corrugations is in contact with the recessed portion of the other splint Anastomosis. The corrugations should not be less than 0.8mm, the depth of not less than 0.15mm. The edge of the corrugation distance hole should not be greater than 3mm, and Should be made of radius of not more than 0.4mm arc shape. The lower inner edge of the upper splint and the upper inner edge of the lower splint shall be made to have a radius 0.5mm arc-shaped chamfer. You can also use steel balls with a diameter of 38mm ± 0.02mm (see EN12332-1), but the test results can not be compared. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 20027.1-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 20027.1-2025_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 20027.1-2025_English with my colleagues?Answer: Yes. 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