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GB/T 20027.2-2025: Rubber-or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method
Status: Valid GB/T 20027.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20027.2-2025 | English | 194 |
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Rubber-or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method
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GB/T 20027.2-2025
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| GB/T 20027.2-2017 | English | 199 |
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Rubber-or plastics-coated fabrics -- Determination of bursting strength -- Part 2: Hydraulic method
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GB/T 20027.2-2017
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Basic data | Standard ID | GB/T 20027.2-2025 (GB/T20027.2-2025) | | Description (Translated English) | Rubber-or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G42 | | Classification of International Standard | 59.080.40 | | Word Count Estimation | 10,129 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 20027.2-2017 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 20027.2-2025: Rubber-or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20027.2-2025
ICS 59.080.40
CCSG42
National Standard of the People's Republic of China
Replaces GB/T 20027.2-2017
Determination of bursting strength of rubber or plastics coated fabrics
Part 2.Hydraulic method
strength-Part 2.Hydraulicmethod
(ISO 3303-2.2020, IDT)
Released on August 29, 2025
Implementation on March 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Preface
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 Part 2 of GB/T 20027 Rubber or plastics coated fabrics - Determination of bursting strength. GB/T 20027 has been
The following parts were published.
--- Part 1.Steel ball method;
--- Part 2.Hydraulic method.
This document replaces GB/T 20027.2-2017 "Rubber or plastic coated fabrics - Determination of bursting strength - Part 2.Hydraulic
Compared with GB/T 20027.2-2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Added instruments and reagents (see 5.3, 5.4, 5.5 and 5.6);
--- Added the preparation method of wet specimen (see 8.3);
--- Added recommendations on the adjustment of single-sided coated fabrics and double-sided coated fabrics (see 10.1), and added provisions for the test environment (see
10.2);
--- Added test procedures for wet specimens (see 11.6).
This document is equivalent to ISO 3303-2.2020 "Rubber- or plastic-coated fabrics — Determination of bursting strength — Part 2.Hydraulic method".
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Rubber and Rubber Products of Standardization (SAC/TC35).
This document was drafted by. Fuzhou University, Shenyang Rubber Research and Design Institute Co., Ltd., Chengtian (Guangdong) Technology Co., Ltd., Jiangxi Jinlilong
Rubber Track Co., Ltd.
The main drafters of this document are. Zheng Yuying, Xiao Xiao, Li Sa, Kang Xiaotian, Chen Zhinan, and Zheng Gang.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2005 as GB/T 20027-2005; first revised in.2016 and published in parts. This document corresponds to
GB/T 20027.2-2017 “Rubber or plastic coated fabrics - Determination of bursting strength - Part 2.Hydraulic method”;
---This is the second revision.
introduction
The bursting strength of coated fabrics is usually used to measure the multi-directional modulus of the material, while the tensile properties can only provide the coated fabric in one plane.
In addition, the bursting strength test is more suitable for testing materials that tend to shrink, such as coated fabrics with knitted fabrics as the skeleton material.
GB/T 20027 Rubber or plastic coated fabrics - Determination of bursting strength aims to establish different methods to facilitate users to determine the
The bursting strength of coated fabrics is proposed to consist of two components.
--- Part 1.Steel ball method. The purpose is to meet the determination needs of the steel ball method.
--- Part 2.Hydraulic method. The purpose is to meet the measurement needs of the hydraulic method.
The method described in this document uses an elastic diaphragm and is a more common method for burst testing. This method is more suitable for light and medium-weight
It also stipulates that two commercial testers with two aperture sizes can be used, but the results measured by different testers may be different.
There is no comparison.
Determination of bursting strength of rubber or plastics coated fabrics
Part 2.Hydraulic method
WARNING. Personnel using this document should have practical experience in regular laboratory work. This document does not purportedly address all possible safety issues.
Users are responsible for taking appropriate safety and health measures and ensuring that the conditions stipulated by relevant national laws and regulations are met.
1 Scope
This document describes a test method for the determination of the bursting strength of rubber or plastic coated fabrics by the hydraulic method.
Or Type B diaphragm rupture tester, both testing machines are hydraulically operated.
Type A testing machine is suitable for materials with a bursting strength of 350kPa~5500kPa, and Type B testing machine is suitable for materials with a bursting strength of
Materials ranging from 70kPa to 1400kPa.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 24133-2009 Rubber or plastics coated fabrics - Standard environment for conditioning and testing (ISO 2231.1989, IDT)
3 Terms and Definitions
There are no terms or definitions that require definition in this document.
4 Principles
The edge of the sample is firmly clamped between the upper and lower clamps. A rubber film is installed under the lower clamp.
Inject liquid at a high speed to make the film gradually extend, expand and bulge, and contact with the sample, exerting pressure on the sample. Record the pressure of the fluid when the sample is destroyed.
force and the height of the film protrusion.
5.Instruments and Reagents
5.1 Testing machine, Type A (see 5.1.1) or Type B (see 5.1.2). For materials whose bursting strength is suitable for either type of testing machine, it is recommended to provide
Both parties need to agree on the type of testing machine to be used. Because the test results of one type of testing machine may be different from those of another type of testing machine.
The results are not necessarily comparable.
NOTE. This type of testing machine is often referred to as a Mullen rupture testing machine. This testing machine is described in detail in ISO 2759.
5.1.1 Type A testing machine (see Figure 1), measuring range 350 kPa to 5500 kPa. The specifications for the components of the testing machine are as follows.
5.1.1.1 Clamping device, used to firmly clamp the specimen, with two parallel annular clamping plates that can be evenly loaded and the clamping plate surfaces should be flat.
(but not polished) and having the grooves shown in Figure 1 and the dimensions of the clamping device are specified. There is a rotating locking device or similar device to clamp
A clamping plate is used to ensure that the clamping pressure is evenly distributed. When the test load is applied, the circular holes of the two clamping surfaces should be kept on the same axis and at the same
The centering should be within 0.25mm and the clamping surfaces should be flat and parallel.
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