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GB/T 34517-2017: Evaluating method for spacecraft non-metal materials outgassing in vacuum
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34517-2017 | English | 218 |
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Evaluating method for spacecraft non-metal materials outgassing in vacuum
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GB/T 34517-2017
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PDF similar to GB/T 34517-2017
Standard similar to GB/T 34517-2017 GB/T 34520.8 GB/T 34520.9 Basic data | Standard ID | GB/T 34517-2017 (GB/T34517-2017) | | Description (Translated English) | Evaluating method for spacecraft non-metal materials outgassing in vacuum | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | V13 | | Classification of International Standard | 49.025.99 | | Word Count Estimation | 11,142 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | 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 | GB/T 34517-2017: Evaluating method for spacecraft non-metal materials outgassing in vacuum---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.
Evaluating method for spacecraft nonmetal materials outgassing in vacuum
ICS 49.025.99
V13
National Standards of People's Republic of China
Spacecraft non-metallic materials with vacuum outlet gas evaluation method
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by China Aerospace Science and Technology Corporation.
This standard by the National Aerospace Technology and Standardization Technical Committee (SAC/TC425) centralized.
This standard was drafted. Lanzhou Institute of Space Technology Physics.
The main drafters of this standard. Guo Xing, Wang Xianrong, Yangsheng Sheng, Wang Jian, Zhuang Jianhong, Xue Yu Xiong, Yan Zendong, Tian Hai, Qin Xiaogang, Wang Jun, Shi Hong.
Spacecraft non-metallic materials with vacuum outlet gas evaluation method
1 Scope
This standard specifies the purpose of evaluation of the vacuum gas performance of non-metallic spacecraft spacecraft, gas outlet performance test methods and data should be
Use and so on.
This standard applies to spacecraft in a vacuum environment, the performance of non-metallic materials out of gas evaluation, other non-metallic vacuum environment
Material evaluation can be used by reference.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 29085-2012 satellite anti-pollution technology requirements
3 Terms and definitions
GB/T 29085-2012 defined and the following terms and definitions apply to this document.
3.1
Vacuum outgassing vacuumoutgassing
Small molecules adsorbed on the surface of the material or dissolved in the material itself evolve to form a gas under a vacuum environment.
3.2
Total mass loss
Samples containing volatile condensable materials, under specified conditions of temperature and vacuum, the total mass lost over a given period of time,
The initial mass ratio, usually expressed as a percentage.
Note rewrite GB/T 29085-2012, the definition of 3.6.
3.3
Volatile volatilecondensablematerial
Under high temperature, low pressure, vacuum conditions, components, materials or sources of pollution desorption, separation or decomposition of the condensable gas on the cryogenic surface
substance.
[GB/T 29085-2012, Definition 3.4]
3.4
Collected volatile materials colectedvolatilecondensablematerial
Material Sampling The mass of condensable volatiles collected on a surface over a given temperature and time under specified temperature and vacuum conditions
The initial mass ratio to the sample, usually expressed as a percentage.
[GB/T 29085-2012, Definition 3.5]
3.5
Water vapor absorption amount watervaporregained
After the total mass loss and the collected condensable volatiles test, the sample is exposed again to the specified temperature and humidity conditions for a given time
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