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GB/T 22308-2008: Standard test method for density of a sheet gasket material
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 22308-2008 | English | 114 |
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Standard test method for density of a sheet gasket material
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GB/T 22308-2008
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Basic data | Standard ID | GB/T 22308-2008 (GB/T22308-2008) | | Description (Translated English) | Standard test method for density of a sheet gasket material | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q24 | | Classification of International Standard | 23.040.80 | | Word Count Estimation | 6,667 | | Date of Issue | 2008-08-20 | | Date of Implementation | 2009-04-01 | | Quoted Standard | GB/T 20671.1; ASTM E691 | | Adopted Standard | ASTM F1315-2000 (2006), IDT | | 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 test methods gasket material density. | GB/T 22308-2008: Standard test method for density of a sheet gasket material---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.
Standard test method for density of a sheet gasket material
ICS 23.040.80
Q24
National Standards of People's Republic of China
Sealing plate material density 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 is identical with the American Society for Testing Materials ASTM F1315-00 (2006 confirmation) "sealing plate material density test
method".
This standard is equivalent translation ASTMF1315-00 (2006 confirmed).
Compared with ASTMF1315-00 (2006 confirmation), this standard the following modifications.
--- Remove the first 1.2 "values \u200b\u200bgiven in parentheses are for reference only" the last sentence;
--- Chapter 2, with the title "Normative References" instead of "reference", and added the introductory phrase; reference file directory with Chinese State
Home Standard "GB/T 20671.1" instead of the American Society for Testing Materials ASTM standard "F104", the standard text accordingly
Were substitution;
--- Remove the British units and the value of all given in parentheses.
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 Tianfu Gasket Co., Ltd., Chengdu-Jun Ma secret
Feng Products Co., Ltd., Hebei Hengda Sealing Materials Co., Ltd., Jilin Province Haihong seal products.
The main drafters of this standard. HEZE Shizhong Tang, Sketch, IRON, Fan Guoliang, Li Baojin, Sink Mark.
This standard is the first release.
Sealing plate material density test method
1 Scope
1.1 standard specifies the test methods gasket material density.
1.2 is the standard in International System of Units (SI) units.
1.3 standard does not address safety issues associated with their use. Responsibility of the user of this standard to consider health and safety issues, and the use of
Regulatory limitations prior to determining the scope of application.
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 20671.1 Non-metallic gasket materials Classification system and test methods - Part 1. Non-metallic gasket materials classification system
ASTME691 laboratory test to determine the precision of the method of work instructions
3 Summary of Test Method
The die-cut samples were adjusted to measure the thickness, quality and size, then calculated and reported density.
4. Significance and Use
4.1 density is an important characteristic of the gasket material, and is inversely proportional to the volume of the material. Density commonly used in the specification associated therewith
Tightness, compressibility, creep relaxation and tensile strength used to describe a grade gasket material.
4.2 is the ratio of the density of mass and volume, the balance and hence the thickness measuring device easily measured. To achieve high accuracy
Scales, this method of test samples were adjusted 1h ~ 2d, but as a method for testing the product will reduce its effectiveness. If used
Production monitoring is recommended in strict accordance with the thickness and quality of the measurement method.
5 Interference
Most pads because of damp sample mass increase and causing the material to expand. The right to adjust the sample to be controlled changes in humidity.
6 Test Equipment
With a thickness of 6.1 --- driven by its own weight load measuring device to measure the thickness, the specific requirements of Table 1. The device should be capable of measuring the thickness indication
1%. Indenter diameter should be 6.40mm ± 0.13mm. Anvil diameter greater than the diameter of the head.
Table 1 applied pressure
Model Material
(The first six digital code base, see GB/T 20671.1)
Pressure on the sample /
kPa
Indenter total pressure (reference) /
1,5 or 7 80.3 ± 6.9 2.50
2 or 4 35 ± 6.9 1.11
3 55 ± 6.9 1.75
0 and 9a 55 ± 6.9 1.75
Unless a drawing on other supplementary documents or where otherwise indicated.
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