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GB/T 11813-2008: Helium leak testing of nuclear fuel rod for PWR
Status: Valid GB/T 11813: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11813-2008 | English | 279 |
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Helium leak testing of nuclear fuel rod for PWR
| Valid |
GB/T 11813-2008
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| GB/T 11813-1996 | English | 319 |
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Helium leak testing of nuclear fuel rod for PWR
| Obsolete |
GB/T 11813-1996
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| GB/T 11813-1989 | English | RFQ |
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3 days [Need to translate]
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Leak testing of nuclear fuel rods using the helium mass spectrometer leak detector
| Obsolete |
GB/T 11813-1989
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PDF similar to GB/T 11813-2008
Basic data | Standard ID | GB/T 11813-2008 (GB/T11813-2008) | | Description (Translated English) | Helium leak testing of nuclear fuel rod for PWR | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F48 | | Classification of International Standard | 27.120 | | Word Count Estimation | 12,113 | | Date of Issue | 2008-07-02 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 11813-1996 | | Quoted Standard | GB 4844.2; GB/T 8979 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall) | | 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 sealing performance of PWR fuel rods helium leak detection methods, and test results of calculation and determination. This standard applies to the fuel rod sealing performance testing, test leak rate in the range of 1 �� 10-11Pa. m3/s ~ 1 �� 10-7Pa. m3/s. Pressurized water reactor control rods, burnable poison rods, sticks and other neutron source helium leak may also refer to this standard. | GB/T 11813-2008: Helium leak testing of nuclear fuel rod for PWR---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.
Helium leak testing of nuclear fuel rod for PWR
ICS 27.120
F48
National Standards of People's Republic of China
Replacing GB/T 11813-1996
PWR fuel rods helium leak
Posted 2008-07-02
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 replaces GB/T 11813-1996 "PWR fuel rods helium leak."
This standard compared with GB/T 11813-1996, the main changes are as follows.
a) increasing the normative references a chapter;
b) increase in personnel and measurement requirements of the chapter;
c) modify the leak measurement time requirements;
d) to modify the system determines the background value of the standard;
e) increase the standard leak calibration control and leak detection system according to the requirements of the end;
f) increased determination method of measuring time.
The Standard Appendix A, Appendix B, Appendix C is a normative appendix.
The standard proposed by China National Nuclear Corporation.
This standard by the National Standardization Technical Committee of nuclear energy.
This standard was drafted. China Jianzhong Nuclear Fuel Limited.
The main drafters of this standard. Yang-high, Guoxu Lin, Cao Hui, Guo Chunhai.
This standard replaces the standards previously issued as follows.
--- GB 11813-1989, GB/T 11813-1996.
PWR fuel rods helium leak
1 Scope
This standard specifies the PWR fuel rods (hereinafter referred to as "fuel") calculated sealing performance helium leak detection methods and results
And judgment.
This standard applies to the fuel rod sealing performance testing, leak detection rate range is 1 × 10-11Pa · m3/s ~ 1 × 10-7Pa · m3/s.
PWR control rods, burnable poison rods, neutron source rod like helium leak may also refer to this standard.
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 4844.2 pure helium
GB/T 8979 nitrogen, high purity nitrogen and ultra pure nitrogen
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
When the use of the fuel rod fabrication charged helium gas leak as shown sealing performance test method.
3.2
After the fuel rods placed in a vacuum vessel, filled with a predetermined pressure of helium, helium gas into the interior of the fuel rod from the drain hole or crevice, then
Helium leak methods.
3.3
When the fuel rod cladding or weld tube end plugs and penetrating defects exist, since helium seal welded play helium leak detectors can detect the
Leak rate determination value only waste time elapsed. Appendix A leak longest time press OK.
4 Method summary
This standard is based on the principle of mass spectrometry, using helium leak detectors, detector and vacuum system, standard leak, etc., of the fuel rods
Leak sealing performance. According to the leak rate and leak detection system allows measurement of the deviation of the fuel rods sealed design techniques on the performance requirements, according
Appendix B to determine the fuel leak rate determination scrap value. When the fuel leak rate is less than the value of the scrap judgment sealing performance is qualified; otherwise unqualified.
5 materials and equipment
5.1 Helium, GB/T 4844.2, qualified.
5.2 Industrial liquid nitrogen.
5.3 Industrial nitrogen, GB/T 8979.
5.4 helium leak detectors, sensitivity better than 1 × 10-11Pa · m3/s.
5.5 Standard leak, quartz nitrided film series standard leak chamber with helium leak rate in the range of technical conditions allow fuel leak rate
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