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GB/T 539-2008 English PDF

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GB/T 539-2008: Oil-resisting compressed asbestos fibre jointing
Status: Valid

GB/T 539: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 539-2008English209 Add to Cart 3 days [Need to translate] Oil-resisting compressed asbestos fibre jointing Valid GB/T 539-2008
GB/T 539-1995English279 Add to Cart 3 days [Need to translate] Oil-resisting asbestos-rubber sheets Obsolete GB/T 539-1995
GB 539-1983English199 Add to Cart 2 days [Need to translate] Oil-resisting asbestos--Rubber sheets Obsolete GB 539-1983

PDF similar to GB/T 539-2008


Standard similar to GB/T 539-2008

GB/T 5483   GB/T 37785   GB/T 28628   GB/T 8072   GB/T 3985   GB/T 540   

Basic data

Standard ID GB/T 539-2008 (GB/T539-2008)
Description (Translated English) Oil-resisting compressed asbestos fibre jointing
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q61
Classification of International Standard 23.040.80
Word Count Estimation 9,953
Date of Issue 2008-08-20
Date of Implementation 2009-04-01
Older Standard (superseded by this standard) GB/T 539-1995
Quoted Standard GB/T 191; GB/T 540; GB 1787; GB/T 2828.1; GB/T 20671.1; GB/T 20671.2; GB/T 20671.3; GB/T 20671.4; GB/T 20671.5; GB/T 20671.7; GB/T 20671.8; GB/T 22308
Regulation (derived from) National Standard Approval Announcement 2008 No.14 (Total No.127)
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 Asbestos rubber sheet classification and marking, requirements, test methods, inspection rules, signs, packaging, transport and storage. This standard applies to chrysotile asbestos as a reinforcing fibers, to oil and rubber adhesives, by roll forming sheet metal used in the manufacture of various types of oil seals. This sheet can be made ??with reference to the use of the gasket.

GB/T 539-2008: Oil-resisting compressed asbestos fibre jointing

---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.
Oil-resisting compressed asbestos fibre jointing ICS 23.040.80 Q61 National Standards of People's Republic of China Replacing GB/T 539-1995 Asbestos rubber sheet Posted 2008-08-20 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 539-1995 "Asbestos rubber sheet." This standard compared with GB/T 539-1995, the main changes are as follows. --- In Chapter 3, "Classification and labeling" added "by the method of GB/T 20671.1 specified labeled" content; --- Increased "NY510", "NY300" level two grades and quality requirements; --- The "dipping 20 Aviation Lubricants" to "dipping IRM903 oil", which NY400, NY250, NY150, HNY300 Transverse tensile strength index after immersion oil respectively, by "≥26.0MPa, ≥9.0MPa, ≥8.0MPa, ≥10.8MPa" modification As "≥12.0MPa, ≥7.0MPa, ≥5.0MPa, ≥9.0MPa", after dipping oil growth rate indicators were made "≤9%, ≤23%, ≤23%, ≤23% "unity revised to" ≤30% ", after the abolition of immersion oil thickening quality indicators; --- The "dipping 75 aviation gasoline or jet fuel No. 3" to "fuel oil impregnated ASTM B", NY400, NY250, HNY300 thickening rate index respectively, by "≤20%, ≤25%, ≤25%" unified changed to "0 to 20%", the abolition of impregnation After the fuel transverse tensile strength and weight gain quality indicators; --- Increased NY400 room temperature transverse tensile strength index ≥15MPa; --- The internal pressure of the oil seal NY400 submissions from 12MPa to 16MPa; --- Added "nitrogen leakage rate" quality requirements and test methods; --- Canceled 2.5mm thickness greater than or equal to not test the flexibility of the provisions; --- Cancellation of the product prescribed thickness, thickness deviation requirements has been modified; --- Use the "creep relaxation rate" instead of "stress relaxation rate," the specific content has not changed; --- Modify the "thickness measurement method"; --- Transverse tensile strength test GB/T 20671.7 instead of GB/T 541; --- Compression rebound ratio testing GB/T 20671.2 Obsolete instead of GB 3988 and later GB/T 541, the diameter of the head 25mm to 6.4mm; --- Density test GB/T 22308 to replace obsolete GB 544 and subsequent GB/T 541; --- Oiled weight gain, thickening test GB/T 20671.3 replace the obsolete GB 543, GB 3912 and later GB/T 540; --- Softness test GB/T 20671.8 instead of GB/T 3985; --- Corrosion test GB/T 540 to replace obsolete GB 3913; --- Creep relaxation rate test GB/T 20671.5 instead of GB/T 3985; --- The performance test by the number of samples of each batch of sample "A" to "three"; --- Added Appendix A "grade rating of this product corresponds to the criteria listed in GB/T 20671.1 coding." Appendix A of this standard is an informative annex. The standard proposed by China Building Materials Federation. The standard and non-metallic mineral products by the National Standardization Technical Committee (SAC/TC406) centralized. This standard is drafted by. Xianyang Institute of non-metallic minerals. Participated in the drafting of this standard. Zhoushan seamounts sealed Material Co., Ltd., Chengdu Jun Ma sealed Products Co., Ltd. Hebei Hengda Sealing Material Co., Ltd., Jilin Province Haihong seal products. The main drafters of this standard. Shang Xingchun, Shizhong Tang, Shen Xiaoping, HEZE IRON Fan Guoliang, Li Baojin. This standard was first published in 1965, in 1983 conducted the first revision, in 1995 undertook a second revision, is the third edition Amendments. Asbestos rubber sheet

1 Scope

This standard specifies the Asbestos rubber sheet classification and marking requirements, test methods, inspection rules, marking, packaging, transportation and storage. This standard applies to chrysotile as reinforcing fibers, with oil and rubber binder, by roll forming used in the manufacture of oil seals Types of sheet metal. This sheet can also be made with reference to the use of the gasket.

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 191 Packaging - Pictorial signs GB/T 540 Asbestos rubber sheet test method GB 1787 aviation gasoline GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan GB/T 20671.1 Non-metallic gasket materials Classification system and test methods - Part 1. Non-metallic gasket materials classification system GB/T 20671.2 Non-metallic gasket materials Classification system and test methods - Part 2. Gasket material compression resilience Standard Test Method for Rate GB/T 20671.3 Non-metallic gasket materials Classification system and test methods - Part 3. Gasket material for fluid resistance 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 Non-metallic gasket materials Classification system and test methods - Part 5. Test method for relaxation of gasket materials creep GB/T 20671.7 Non-metallic gasket materials Classification system and test methods - Part 7. Test methods for non-metallic gaskets strength Tensile GB/T 20671.8 non-metallic materials Classification system and test methods - Part 8 Gasket. non-metallic gasket materials softness test method GB/T 22308 Test method for sealing plate material density

3 Classification and Marking

3.1 Classification Asbestos rubber sheet use is divided into general industrial Asbestos rubber sheet and the aviation industry Asbestos rubber sheet categories. general Industrial Asbestos rubber sheet is divided into five grades grades. Table 1. Table 1 Asbestos rubber sheet Grades and grade recommended range Classification grade surface color recommended range General industrial use Asbestos rubber sheet NY510 green grass below 510 ℃ temperature, oil pressure 5MPa following media NY400 taupe 400 ℃ temperature below the following oil medium pressure 4MPa NY300 blue temperature below 300 ℃, pressure oil medium following 3MPa NY250 green temperature below 250 ℃, pressure 2.5MPa less oil medium NY150 dark red temperature below 150 ℃, pressure 1.5MPa less oil medium Aviation industry Asbestos rubber sheet HNY300 blue Aviation fuel temperature below 300 ℃, petroleum-based lubricants and air-conditioning Gasket system

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