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GB/T 34517-2017 English PDF

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US$218.00 · In stock
Delivery: <= 1 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34517-2017: Evaluating method for spacecraft non-metal materials outgassing in vacuum
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34517-2017	218	Add to Cart	1 days	Evaluating method for spacecraft non-metal materials outgassing in vacuum	Valid

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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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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34517-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34517-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically in 24 hours. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 34517-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34517-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.