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Vacuum technology -- Vacuum leak testing method by helium mass spectrometer
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Basic data
| Standard ID | GB/T 36176-2018 (GB/T36176-2018) |
| Description (Translated English) | Vacuum technology -- Vacuum leak testing method by helium mass spectrometer |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J78 |
| Classification of International Standard | 23.160 |
| Word Count Estimation | 16,193 |
| Date of Issue | 2018-05-14 |
| Date of Implementation | 2018-12-01 |
| Regulation (derived from) | National Standards Announcement No. 6 of 2018 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 36176-2018: Vacuum technology -- Vacuum leak testing method by helium mass spectrometer
---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.
(Vacuum Technology 氦 Mass Spectrometer Vacuum Leak Detection Method)
ICS 23.160
J78
National Standards of People's Republic of China
Vacuum technology 氦 mass spectrometry vacuum leak detection method
Published on.2018-05-14
2018-12-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General requirements 2
4.1 Staff qualification 2
4.2 Equipment Requirements 2
4.3 Helium 2
4.4 Environmental Requirements 2
5 leak detection method 2
5.1 blowing method 2
5.2 Cover method 6
5.3 Pressure-vacuum leak detection method 9
6 leak detection file 11
6.1 Leak Detection Record 11
6.2 Leak Detection Report 11
Appendix A (Normative Appendix) Leak Detection Record 12
Appendix B (Normative Appendix) Leak Detection Report 13
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Vacuum Technology Standardization Technical Committee (SAC/TC18).
This standard was drafted. Beijing Satellite Environmental Engineering Research Institute, Anhui Puyi Technology Co., Ltd., Ningbo Laibao Vacuum Automation Technology
Technology Co., Ltd., Hunan Weige Magnetic Fluid Co., Ltd., Shenyang Vacuum Technology Research Institute.
The main drafters of this standard. Wang Yong, Meng Donghui, Sun Lichen, Yan Rongxin, Shi Jijun, Huang Wenping, Wang Guodong, Hu Mei, Ren Guohua, Sun Wei,
Shao Rongping, Lu Ming, Zhang Chunyuan, Dou Renchao, Yan Jichun, Wang Gongfa, Yan Wenjing, Peng Guangdong, Sun Gang, Sun Wei, Jing Jiarong, Li Bin, Wang Lingling.
Vacuum technology 氦 mass spectrometry vacuum leak detection method
1 Scope
This standard specifies the general requirements for the implementation of helium mass spectrometry vacuum leak detection methods. Three commonly used helium mass spectrometry vacuum leak detection methods are applied to
Requirements for system composition, leak detection procedures, etc. and requirements for leak detection documents.
This standard applies to components, components, subsystem-level and system-level products that use the helium mass spectrometer vacuum leak detection method in various industries.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 3163 vacuum technical terminology
GB/T 4844 pure tantalum, high purity tantalum and ultra pure tantalum
GB/T 9445 Non-destructive testing personnel qualification and certification
GB/T 12604.7 Non-destructive testing term leak detection
GB/T 13979 mass spectrometer leak detector
3 Terms and definitions
The following terms and definitions as defined in GB/T 3163 and GB/T 12604.7 apply to this document.
3.1
Waiting time waitingtime
The interval between two tests.
3.2
Leak test sensitivity leaktestingsensitivity
Qemin
The minimum leak leak rate that can be detected by the leak detection system under specific working conditions.
3.3
Spray method sprayprobemethod
A helium mass spectrometer leak detection method in which a helium gas beam of a known concentration is sprayed on a surface of a test piece by a spray gun.
3.4
A cesium mass spectrometer leak detection method in which the test piece is partially or completely covered and the cover is filled with helium gas of a known concentration.
3.5
Pressure-vacuum leak detection method pressure-vacuumchambermethod
The helium-filled test piece is placed in a vacuum chamber and pumped to a predetermined degree of vacuum. Under the pressure difference, helium gas enters the vacuum chamber through the leak point.
The method of being tested by the leak detector.
3.6
Sniffer method sniffingprobemethod
The test piece is filled with helium gas of a certain pressure, and a sniffer connected to the helium mass spectrometer leak detector is used to sniff the surface of the test piece to leak out of the helium gas.
...
