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GB/T 22208-2008 English PDF

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GB/T 22208-2008: Test methods of no-asbestos fiber reinforced rubber gaskets
Status: Obsolete
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 22208-2008359 Add to Cart 3 days Test methods of no-asbestos fiber reinforced rubber gaskets Obsolete

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Basic data

Standard ID: GB/T 22208-2008 (GB/T22208-2008)
Description (Translated English): Test methods of no-asbestos fiber reinforced rubber gaskets
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U05
Classification of International Standard: 47.020.05
Word Count Estimation: 9,913
Date of Issue: 2008-07-30
Date of Implementation: 2009-02-01
Quoted Standard: GB/T 20671.2; GB/T 20671.4; GB/T 20671.5-2006; BS 7531-1992
Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the use of non -asbestos gaskets marine density fiber-reinforced rubber sheet, tensile strength, compression ratio, spring rate, creep relaxation rate, residual stress, softness, fluid resistance, tightness, gas permeability and test methods for oil tightness. This standard applies to enhance the performance of tests for marine gasket rubber sheet with non-asbestos fibers.

GB/T 22208-2008: Test methods of no-asbestos fiber reinforced rubber gaskets

---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.
Test methods of no-asbestos fiber reinforced rubber gaskets ICS 47.020.05 U05 National Standards of People's Republic of China Marine gaskets non-asbestos fiber-reinforced rubber sheet experiment method Posted 2008-07-30 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China State Shipbuilding Corporation. This standard by the National Standardization Technical Committee Marine boat marine materials application technology at the Technical Committee. This standard was drafted. Yangzhong City Bin Yang special gasket packing plant, Jiangnan Shipbuilding Group (Co.) Ltd., East China University of Technology, China Shipbuilding Technology and Economy Research Institute. The main drafters of this standard. Peng Xiaobin, Luomei Zhen, Xiesu Jiang, Peng Guoqiang, Wang Yun, Song Yanyuan. Marine gaskets non-asbestos fiber-reinforced rubber sheet experiment method

1 Scope

This standard specifies the use of non-asbestos gaskets for marine fiber-reinforced rubber sheet (hereinafter referred to as rubber sheet) density, tensile strength, compression ratio, return Bombs rate, creep relaxation rate, residual stress, flexibility, fluid resistance test method, air tightness, gas permeability and oil tightness. This standard applies to ships spacer enhanced performance test rubber sheet with non-asbestos fibers.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 20671.2 non-metallic materials Classification system and test methods - Part 2 gaskets. gasket materials compression spring rate test method GB/T 20671.4 Non-metallic gasket materials Classification system and test methods - Part 4. Test methods for sealing gasket materials GB/T 20671.5-2006 non-metallic materials Classification system and test methods - Part 5 gaskets. gasket materials creep relaxation rate again Test method BS7531.1992 compressed non-asbestos fiber-reinforced rubber gaskets technical requirements

3 density test

3.1 Test Equipment Density test device comprising. a) micrometer. Face diameter 6mm ~ 10mm; b) vernier caliper. accuracy of 0.02mm; c) balance. a sense of the amount of 0.001g; d) Drying oven 0 ℃ ~ 300 ℃. 3.2 Test procedure 3.2.1 cut 40mm × 40mm square sample three. 3.2.2 measuring sample length, width, thickness, all three points, the arithmetic mean is obtained records. 3.2.3 Place the specimen 1h at a temperature of 100 ℃ ± 2 ℃ of electric blast oven, cooled to room temperature in a desiccator, weighed, recording. 3.3 Calculation Results 3.3.1 density according to the formula (1) calculations. ρ = L Chou T (1) Where. Numerical density ρ --- sample, in units of grams per cubic centimeter (g/cm 3); Value m1 --- sample mass, in grams (g); Numerical L --- length of the specimen in centimeters (cm); Numerical Chou --- sample width in centimeters (cm); Value T --- thickness of the sample, in centimeters (cm).
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