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GB/T 30086-2013: Determination of axial coefficient of linear expansion of plastics pipes for water supply
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 30086-2013 | English | 139 |
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Determination of axial coefficient of linear expansion of plastics pipes for water supply
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GB/T 30086-2013
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Basic data | Standard ID | GB/T 30086-2013 (GB/T30086-2013) | | Description (Translated English) | Determination of axial coefficient of linear expansion of plastics pipes for water supply | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G33 | | Classification of International Standard | 83.140.30 | | Word Count Estimation | 6,639 | | Quoted Standard | GB/T 8806; QB/T 2803 | | Regulation (derived from) | National Standards Bulletin No. 25 of 2013 | | 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 water supply plastic pipe axis linear expansion coefficient test terminology and definitions, principles, equipment, samples, test procedures, and test results of the calculation and evaluation of records and reports. This stan | GB/T 30086-2013: Determination of axial coefficient of linear expansion of plastics pipes for water supply
---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.
Determination of axial coefficient of linear expansion of plastics pipes for water supply
ICS 83.140.30
G33
National Standards of People's Republic of China
Water supply plastic pipe axial linear expansion coefficient Test Method
Issued on. 2013-12-17
2014-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the National Quality Supervision key product testing method Standardization Technical Committee (SAC/TC374) and focal points.
This standard is drafted by. Shanghai Research Institute of Building Sciences (Group) Co., Ltd. Shanghai Construction Inspection Branch.
Participated in the drafting of this standard. Zhejiang Weixing New Building Materials Co., Ltd., on the Hai River Enterprise Group Co., Wingo shares have
Limited, Shanghai White Butterfly Pipe Technology Co., Icahn Enterprise Group (Shanghai) Co., Ltd., Shanghai Tianli Industrial (Group) Co.
Division Shanghai Plastic Holdings (Group) Co., Ltd. Shanghai long plastic products.
The main drafters of this standard. Zhao, Wang Jing, Qi Jinxiu, towering Xu, Chen Xiaoguang, Su Yu, Wang Yijun, Bilin Bo, hehe.
Water supply plastic pipe axial linear expansion coefficient Test Method
1 Scope
This standard specifies the terms and definitions axial water supply plastic pipe linear expansion coefficient test, principle, equipment, sample, test procedure, results
Calculation and evaluation and test records and reports.
This standard applies to the jack with a differential measurement of various types of plastic pipe water supply pipe straight axial coefficient of linear expansion.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Determination of GB/T 8806 Plastics piping systems for plastic parts size
QB/T 2803 hard plastic pipe curvature measurement method
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Axial linear expansion coefficient axialcoefficientoflinearexpansion
When the temperature changes by 1 ℃, plastic pipe relative change in the axial length.
Principle 4
Free section of plastic pipe expansion at ambient temperature and (or) when the fluid within the pipe temperature changes occur in the axial length dimension
Expansion or contraction.
This method is to use a normal jack differential expansion coefficient tester the sample is uniformly heated, and controlling the temperature rise rate, two temperature measurement
Point between the axial length of the sample variation, calculated linear expansion coefficient.
5 device
Jack differential normal expansion coefficient tester includes a heated water bath, temperature control system, deformation measurement system, and shall meet the following requirements.
a) a thermostat water bath and the temperature control system provides temperature range of ambient temperature of 20 ℃ ~ 95 ℃, maintaining a constant temperature, it
The average temperature not more than ± 0.5 ℃, the maximum temperature not more than ± 1.0 ℃, can obtain stable heating rate, heating rate
Of 4 ℃/10min ± 1 ℃/10min, the maximum allowable temperature indication error of ± 0.1 ℃;
b) after fixing the pipe specimen should ensure the specimen slide occurred only in the axial direction during the test, there should be no radial displacement and sliding friction
Force should be less than 5N;
The maximum permissible error c) deformation measuring device indication is ± 0.01mm, the contact force and the length-measuring meter should not exceed 1N.
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