Chinese Standards Shop Partner of Google-Books Database: 169760 (Mar 16, 2019)
 HOME   Quotation   Tax   Examples Standard-List   Contact-Us   View-Cart
         

GB/T 20027.2-2017

Search Result of Chinese Standard: 'GB/T 20027.2-2017'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
GB/T 20027.2-2017English159 Add to Cart Days<=3 Rubber-or plastics-coated fabrics—Determination of bursting strength—Part 2: Hydraulic method Valid GB/T 20027.2-2017
GB/T 20027.2-2017Chinese15 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  

   
Detail Information of GB/T 20027.2-2017; GB/T20027.2-2017
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: 10,197
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Drafting Organization: Shenyang Rubber Research Institute Co., Ltd.
Administrative Organization: National Rubber and Rubber Products Standardization Technical Committee (SAC/TC 35)
Proposing organization: China Petroleum and Chemical Industry Federation
Issuing agency(ies): People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration

GB/T 20027.2-2017
Rubber-or plastics-coated fabrics-Determination of bursting strength-Part 2. Hydraulic method
ICS 59.080.40
G42
National Standards of People's Republic of China
Partially replace GB/T 20027-2005
Rubber or plastic - coated fabrics - Determination of breaking strength
Part 2. Hydraulic methods
Rubber-orplastics-coatedfabrics-Determinationofburstingstrength-
Part 2.Hydraulicmethod
(ISO 3303-2.2012, IDT)
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 20027 "Determination of the breaking strength of rubber or plastic coated fabrics" is divided into two parts.
--- Part 1. Ball method;
--- Part 2. Hydraulic method.
This section GB/T 20027 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
Part of this section instead of GB/T 20027-2005 "Determination of the breaking strength of rubber or plastic coated fabrics, and GB/T 20027-
2005 compared to the main technical changes are as follows.
--- The scope of application made a certain adjustment, delete the method A;
--- Within the scope of the hydraulic method to redefine the two test methods, methods A and B (see Chapter 1);
--- Increase the principle (see Chapter 3);
--- Redefinition of two test devices (see Chapter 4);
--- Increased calibration requirements (see Chapter 5);
--- Modify the sample preparation requirements (see Chapter 7, Chapter 5 of the.2005 edition);
--- Modify the requirements of the test process (see Chapter 10, Chapter 8 of the.2005 edition);
--- Modify the contents of the test report (see Chapter 11, Chapter 9 of the.2005 edition).
This section uses the translation method identical with ISO 3303-2.2012 "Determination of the breaking strength of rubber or plastic coated fabrics Part 2
Sub-hydraulic method.
This section made the following editorial changes.
--- Removed the ISO 2758 reference, because there is no reference in the text.
The documents of our country that are consistent with the corresponding international documents that are normative references in this section are as follows.
--- GB/T 24133-2009 rubber or plastic coated fabric conditioning and testing of the standard environment (ISO 2231.1989, IDT)
This part is proposed by China Petroleum and Chemical Industry Federation.
This part of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized.
This part of the drafting unit. Shenyang Rubber Research Institute Co., Ltd..
The main drafters of this section. Zhao Bodan, Ma Ying, Cao Zhi-bin, Wang Jun.
This part replaces the standards previously issued as.
--- GB/T 20027-2005.
introduction
The rupture strength of a coated fabric is often used as a measure of the multidirectional modulus of the material, unlike the tensile properties which provide only coating
The strength of the fabric in one plane. In addition, the burst strength test is more suitable for testing shrinkage of the material, for example, knit fabric for the skeleton
Material coated fabric.
This section describes the test, the use of a rubber film, rupture test is a more common test methods, this test method is more appropriate
For lighter and medium range coated fabrics; commercial test kits that can use both pore sizes are specified, but not by
The results measured with the tester may not be comparable.
Rubber or plastic - coated fabrics - Determination of breaking strength
Part 2. Hydraulic methods
1 Scope
This section GB/T 20027 specifies the test method for measuring the burst strength of rubber or plastic coated fabrics, the use of two kinds of hydraulic side
Law of the diaphragm rupture tester, provided for the A-type testing machine and B-type testing machine. A-type testing machine for rupture strength 350kPa ~
5500kPa range of materials; B-type test machine for the rupture strength of the material in the range of 70kPa ~ 1400kPa.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
ISO 2231 Rubber or plastic coated fabric conditioning and testing of the standard environment (Rubber-orplastics-coatedfabrics-
Standardatmospheresforconditioningandtesting)
3 principle
The edge of the specimen can be firmly clamped by the upper and lower clamps. Under the splint to install a rubber film, in the cavity under the film at a constant speed
Degree of injection of liquid, the film gradually extended expansion bulge, and contact with the sample, the sample pressure. Record the pressure of the fluid when the specimen breaks down
And the film raised height.
4 test device
4.1 Tester 1), A type test machine (see 4.1.1) or B type test machine (see 4.1.2). According to the material rupture strength specifications decided to use a
A type of testing machine, it is recommended that both sides use the type of testing machine to reach agreement, because the test results of one type of testing machine and the other
The test results of one type of testing machine are not comparable.
4.1.1 A type testing machine (see Figure 1), measuring range of 350kPa ~ 5500kPa, testing machine components in 4.1.1.1 to 4.1.1.3
Provisions.
4.1.1.1 Fixture device, for firmly clamping the specimen, the two parallel annular plate can be uniformly loaded between the plane, the surface of the plate should be smooth
(But not polished) with grooves as shown in FIG. 1 and specifying the dimensions of the fixture device. The clamp has a locking device or similar device clip
Clamp to ensure even clamping pressure distribution. In the test load, the two clamping surface of the hole should be maintained in the same axis, concentric
Degree should be within 0.25mm, the clamping surface should be flat and parallel.
4.1.1.2 rubber film, the shape of a round, made of natural or synthetic rubber. Firmly clamped before the test starts, requiring film on the table
The surface should be recessed 5.5 mm relative to the upper surface of the lower cleat. The material and construction of the rubber film shall be such that when the pressure is applied, the film shall be convex
Out of the upper surface of the plywood, the raised height is as follows.
--- Raised height 10mm ± 0.2mm, pressure range. 170kPa ~ 220kPa;
--- Raised height 18mm ± 0.2mm, pressure range. 250kPa ~ 350kPa.
1) Such testing machine is usually called Mullen rupture testing machine. ISO 2759 describes in detail such testing machine.
Related standard:   GB/T 20027.1-2016
   
 
Privacy   ·  Product Quality   ·  Refund Policy   ·  Fair Trading   ·  Quick Response   ·  About Us
Field Test Asia Limited | Taxed in Singapore: 201302277C | Copyright 2012-2019