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GB/T 5574: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 5574-2008 | English | 65 |
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Industrial rubber sheet
| Valid |
| GB/T 5574-1994 | English | 279 |
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Industrial rubber sheet
| Obsolete |
| GB 5574-1985 | English | RFQ |
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Vulcanized rubber sheet for use in industry
| Obsolete |
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GB/T 5574-2008: Industrial rubber sheet---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/GBT5574-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.140.99
G 47
Replacing GB/T 5574-1994
Industrial rubber sheet
Issued on: APRIL 01, 2008
Implemented on: OCTOBER 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Specifications and dimensions... 5
4 Classification... 6
5 Labeling... 6
6 Requirements... 6
7 Test methods... 9
8 Inspection rules... 10
9 Marks, packaging, transportation and storage... 11
Industrial rubber sheet
1 Scope
This Standard specifies the specifications, dimensions, classification, labeling,
requirements, test methods, inspection rules, as well as marking, packaging,
transportation and storage for industrial rubber sheets.
This Standard applies to industrial rubber sheets made primarily of natural rubber or
synthetic rubber (hereinafter referred to as industrial rubber sheets). It also applies to
rubber strip products with rectangular cross-sections.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 528-1998, Rubber, vulcanized or thermoplastic -- Determination of tensile
stress-strain properties (eqv ISO 37.1994)
GB/T 529-1999, Rubber, vulcanized or thermoplastic -- Determination of tear
strength (Trouser, angle and crescent test pieces) (eqv ISO 34-1.1994)
GB/T 531-1999, Rubber--Determination of indentation hardness by means of pocket
hardness meters (idt ISO 7619.1986)
GB/T 1690-2006, Liquid test methods vulcanized rubber or thermoplastic rubber
resistance (ISO 1817.2005, MOD)
GB/T 3512-2001, Rubber, vulcanized or thermoplastic -- Accelerated ageing and
heat resistance tests -- Air-oven method (eqv ISO 188.1998)
GB/T 6031-1998, Rubber, Vulcanized or thermoplastic. Determination of hardness
(hardness between 10 IRHD and 100IRHD) (idt ISO 48.1994)
GB/T 7759-1996, Rubber, Vulcanized or thermoplastic -- Determination of
compression set at ambient elevated or low temperatures (eqv ISO 815.1991)
GB/T 7762-2003, Rubber -- Vulcanized or thermoplastic -- Resistance to ozone
cracking -- Static strain test (ISO 1431-1.1989, MOD)
GB 8624, Classification for burning behavior of building materials and products
GB/T 15256-1994, Rubber or thermoplastic rubber, vulcanized -- Determination of
low-temperature brittleness (multiple test piece method) (eqv ISO 812.1991)
GB 18241.1, Rubber lining -- Part 1.Anticorrosion lining for equipment
HG 2793, Conductive and antistatic rubber sheets for industrial use
HG 2949, Electrical insulating rubber sheet
3 Specifications and dimensions
The nominal thickness, width and deviation of industrial rubber sheets shall comply
with the requirements of Table 1.The nominal length and deviation shall be determined
by negotiation between the supplier and the purchaser.
4 Classification
Industrial rubber sheets are divided into three categories according to their oil resistance,
see Table 2.
5 Labeling
5.1 Labeling method
Products are labeled in the following order.
Product name, reference to this Standard, technical characteristic code.
5.2 Labeling example
A tear-resistant, oil-resistant rubber sheet with a tensile strength of 5 MPa, an elongation
at break of 400%, a nominal hardness of 60 IRHD, is labeled as.
6 Requirements
6.1 Basic properties
6.1.1 Tensile strength is divided into seven levels as shown in Table 3.
rubber sheet must be straight and approximately parallel. There must be no bending or
warping. The maximum deviation from a straight line must not exceed 15 mm per 10
meters. Additional requirements can be agreed upon between the supplier and the
purchaser.
7 Test methods
7.1 Specifications and dimensions
Measure thickness with a gauge with an accuracy of 0.02 mm. Take measurements at 5
evenly spaced points along the width of the sheet. Take the arithmetic mean of the 5
measured values. Length and width are measured with a tape measure.
7.2 Rubber sheet properties
7.2.1 The oil resistance shall be determined in accordance with the method specified in
GB/T 1690-2006.Test conditions. (100±1)°C × 72 h.
7.2.2 The tensile strength and elongation at break shall be determined in accordance
with the method specified in GB/T 528-1998.Use Type I specimens.
7.2.3 The determination of rubber international hardness (IRHD) shall be carried out in
accordance with the method specified in GB/T 6031-1998.The determination of Shore
A hardness shall be carried out in accordance with the method specified in GB/T 531-
1999.Specimens requiring grinding shall be tested 16 h after grinding. Arbitration tests
shall be carried out in accordance with the provisions of GB/T 6031-1998.
7.2.4 Hot air aging and heat resistance tests shall be carried out in accordance with the
method specified in GB/T 3512-2001.Test conditions. Ar1.(70 ± 1)°C × 72 h; Ar2.(100
± 1)°C × 72 h.
7.2.5 The low temperature resistance shall be determined in accordance with the method
specified in GB/T 15256-1994.
7.2.6 The tear resistance test shall be carried out in accordance with the method
specified in GB/T 529-1999.The specimens shall be rectangular uncut specimens.
7.2.7 The ozone aging resistance test shall be carried out in accordance with the method
specified in GB/T 7762-2003.
7.2.8 The compression set test shall be carried out in accordance with the method
specified in GB/T 7759-1996.
7.2.9 The flame-retardant performance test shall be carried out in accordance with the
method specified in GB 8624.
7.3 Surface quality
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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