GB/T 540-2008 English PDF

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GB/T 540-2008: Test methods for oil-resisting compressed asbestos fibre jointing
Status: Valid

GB/T 540: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 540-2008	189	Add to Cart	3 days	Test methods for oil-resisting compressed asbestos fibre jointing	Valid
GB/T 540-1999	359	Add to Cart	3 days	Test methods for oil-resisting asbestos-rubber sheets	Obsolete
GB/T 540-1983	RFQ	ASK	3 days	Test method for tightness of oil-resisting asbestos--Rubber sheets	Obsolete

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Basic data

Standard ID: GB/T 540-2008 (GB/T540-2008)
Description (Translated English): Test methods for 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: 8,898
Date of Issue: 2008-08-20
Date of Implementation: 2009-04-01
Older Standard (superseded by this standard): GB/T 15520-1995; GB/T 540-1999; GB/T 541-1996; GB/T 542-1983
Quoted Standard: GB/T 699; GB 1922; GB/T 3190; GB/T 8170
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 LOI Asbestos and Asbestos rubber sheet rubber sheet, corrosion of metallic materials, thermal pressure resistance test methods, oil seal. This standard applies to asbestos rubber sheet and Asbestos rubber sheet. In the sample size appropriate, also applies to the use of asbestos gaskets and rubber sheet Asbestos rubber sheet made ??. Other non-metallic gasket materials may also refer to adopt.

GB/T 540-2008: Test methods for 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.
Test methods for oil-resisting compressed asbestos fibre jointing ICS 23.040.80 Q61 National Standards of People's Republic of China Replacing GB/T 540-1999, GB/T 541-1996, GB/T 542-1983, GB/T 15520-1995 Asbestos rubber sheet test method 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 540-1999 "Asbestos rubber sheet test method", GB/T 541-1996 "Test method asbestos rubber sheet Method ", GB/T 542-1983" asbestos rubber sheet softness test method ", GB/T 15520-1995" Asbestos rubber sheet vapor seal performance test Test methods. " This standard and GB/T 540-1999, GB/T 541-1996, GB/T 542-1983, GB/T 15520-1995 compared to major change Of the following. --- Remove the GB/T 541-1996 in the tensile strength test method, the aging factor test methods, test method for density, compressibility, Test method Rebound four test methods, delete GB/T 540-1999 in oiled tensile strength test methods, oil absorption Test methods, test methods for immersion oil thickening, oil immersion test method change in the appearance, after oil immersion test method softness five square test France deleted GB/T softness of Test Method 542-1983; Loss on Ignition Test Method --- the GB/T 541-1996 stipulated, GB/T 540-1999 corrosion test methods specified in, Oil tightness test method, GB/T four steam sealing performance test method Test method prescribed unified whole 15520-1995 Together in this standard; --- Four test methods and standards of the original standards retained basically the same test principle, test equipment, the results of the calculation and determination aspect, Only in the test procedure provisions of a more specific and concrete; --- The "corrosion test methods" Name GB/T 540-1999 amended as specified in the "metal materials corrosion test method"; --- The GB/T 15520-1995 "Asbestos rubber sheet vapor seal performance test method" name changed to "heat pressure test side Law "; cancellation of the test conditions, the test piece was subjected to pressing force (preload pressure) uniform regulations for the internal pressure borne by the 2 times; it adds another at a predetermined temperature to maintain 120min requirements; --- Increase the quality requirements of the surface of the flange and the quality of the test pieces in the oil tightness test method, heat pressure test method Claim. 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 replaces the standards previously issued as follows. --- GB 540-1965, GB 540-1983, GB/T 540-1999; --- GB 541-1965, GB 541-1983, GB/T 541-1996; --- GB 542-1965, GB/T 542-1983; --- GB/T 15520-1995. Asbestos rubber sheet test method

1 Scope

This standard specifies the loss on ignition and oil asbestos rubber sheet asbestos rubber sheet, metal materials, corrosion, oil seal, heat pressure Test methods. This standard applies to asbestos rubber sheet asbestos rubber sheet and oil. In the sample size appropriate circumstances, also apply to asbestos rubber sheet Asbestos rubber sheet and made gasket. Other non-metallic gasket materials may also refer to adoption.

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 699 high-quality carbon structural steel GB 1922 paint and cleaning solvent oil GB/T 3190 Wrought aluminum and aluminum alloy chemical composition GB/T 8170 numerical rounding rules

3 Loss on Ignition Test Method

3.1 Summary of Method The sample was dried at 800 ℃ burn 60min, wherein the organic and inorganic crystal water evaporation, measure the ignition Save The amount of indirect inspect its heat resistance. 3.2 Test equipment and materials a) balance. a sense of not more than 0.001g; b) electric oven. the temperature can be controlled at 102 ℃ ± 2 ℃; c) high temperature furnace. temperature-controlled at 800 ℃ ± 20 ℃; d) dryer. packages containing anhydrous calcium chloride; e) Crucible. at least three, each containing a volume of not less than 10cm3. 3.3 Test procedure 3.3.1 Weigh 3g ~ 5g sample in triplicate. 3.3.2 The samples were placed in three has been burned to constant weight of the crucible, at a temperature of 102 ℃ ± 2 ℃ electric drying oven to Constant weight (apart 30min absolute error is less than twice the weighing 0.001g). 3.3.3 Remove the crucible containing the sample was cooled to room temperature in a desiccator, weigh the quality of the crucible and the sample after drying together, to accurately 0.001g. 3.3.4 After weighing the crucible containing the sample was placed in a temperature of 800 ℃ ± 20 ℃ high temperature furnace, the door ajar, burning 60min. 3.3.5 Remove the crucible containing the sample after burning, cooled to room temperature in a desiccator, weigh the quality of the crucible and the sample after burning together, to accurately 0.001g. 3.4 Calculation Results Loss on ignition according to formula (1). Sh = m1 1- 2 m1 m1 m1 × 1- 100 (1) ......

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