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GB/T 5574-2008Industrial rubber sheet (English PDF)

工业用橡胶板

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 1, 2008

Implementation date

October 1, 2008

Scope

GB/T 5574-2008 is the English-translated version of 工业用橡胶板.

GB/T 5574-2008 is the Chinese standard "Industrial rubber sheet". Its scope clause reads: 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.

Its clauses include specifications and dimensions; classification; labeling; requirements; test methods; inspection rules; marks, packaging, transportation and storage.

It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on APRIL 01, 2008 and took effect on OCTOBER 01, 2008.

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Document preview — GB/T 5574-2008

National Standard of the People's Republic of China

ICS: 83.140.99
Classification: G 47
Replacing: GB/T 5574-1994

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword3
1 Scope4
2 Normative references4
3 Specifications and dimensions5
4 Classification6
5 Labeling6
6 Requirements6
7 Test methods9
8 Inspection rules10
9 Marks, packaging, transportation and storage11

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.

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

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 531-1999 · GB/T 7759-1996

Cited by

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Editions of GB/T 5574

Edition	Title	Revision	Status
GB/T 5574-2008	Industrial rubber sheet	current edition	Current
GB/T 5574-1994	Industrial rubber sheet	previous edition	Superseded

This page sells the current edition, GB/T 5574-2008. Earlier editions are listed for reference only.

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