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GB/T 25452-2010: Specification for sintered natural uranium dioxide pellets for PHWR plant
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25452-2010 | English | 209 |
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Specification for sintered natural uranium dioxide pellets for PHWR plant
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GB/T 25452-2010
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Basic data | Standard ID | GB/T 25452-2010 (GB/T25452-2010) | | Description (Translated English) | Specification for sintered natural uranium dioxide pellets for PHWR plant | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F46 | | Classification of International Standard | 27.120.30 | | Word Count Estimation | 9,976 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB 11806 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2010 No. 8 (No. 163 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 CANDU nuclear power plant fuel element with natural uranium dioxide pellets sintered technical requirements, test methods, inspection rules, packaging, storage, transportation, signs and other requirements. This standard applies to CANDU nuclear power plant fuel elements by sintering of natural uranium dioxide pellets. | GB/T 25452-2010: Specification for sintered natural uranium dioxide pellets for PHWR plant---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.
Specification for sintered natural uranium dioxide pellets for PHWR plant
ICS 27.120.30
F46
National Standards of People's Republic of China
CANDU nuclear power plant fuel elements with natural sintering
Uranium dioxide pellets technical conditions
forPHWRplant
Issued on. 2010-11-10
2011-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is a normative appendix, Appendix B is an informative annex.
The standard proposed by China National Nuclear Corporation.
This standard by the National Standardization Technical Committee of nuclear energy.
This standard was drafted. China North Nuclear Fuel Limited.
The main drafters of this standard. Li some silver, Fan Chunsheng, late new country, Zhu Yajing, Wang.
CANDU nuclear power plant fuel elements with natural sintering
Uranium dioxide pellets technical conditions
1 Scope
This standard specifies the CANDU nuclear power plant fuel element with the technical requirements of natural sintered uranium dioxide pellets, test methods, inspection rules and
Packaging, storage, transportation, signs and other requirements.
This standard applies to CANDU nuclear power plant fuel element sintered natural uranium dioxide pellets.
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 11806 safety of radioactive material transport regulations
3 Technical requirements
3.1 Chemical requirements
3.1.1 Oxygen to Uranium
Uranyl ratio of 1.995 ~ 2.015.
3.1.2 Elements and impurity content limits
Single impurity element content shall not exceed the limits specified in Table 1, 2, nitrogen and chlorine in Table 1 for the recommended limit values.
3.1.3 Equivalent Boron Contents
3.1.3.1 total equivalent boron content of impurities in Table 1 should not exceed 1.38μg/gU. Total equivalent single impurity element boron content is equivalent
Boron content and a single equivalent boron impurity element boron content equivalent factor equal to the product of the element and its content (μg/gU), the equivalent of each element
Boron factors shown in Table 2.
3.1.3.2 All content of impurity elements are shown in Table 1, limits the range of 1, total equivalent boron content does not calculate.
3.1.3.3 In addition to C, F, S, K, P, Na, but any kind of impurity elements exceed the limits in Table 1 in the range of 1, you should calculate the total equivalent boron-containing
The amount of the element content is less than the method detection limit, whichever is the lower limit of detection is calculated.
Other elements and their equivalents of the boron content not included in Table 1 of 3.1.3.4 agreed by both parties.
Table 1 Sintering of natural uranium dioxide pellets and limits of impurity elements in micrograms per gram of uranium
Element limit 1 limit 2
Al 50 100
B 0.3 0.6
Cd 0.2 0.4
Ca 50 100
C 200 200
Cr 25 50
Cu 10 20
Element limit 1 limit 2
Dy 0.15 0.3
F 15 15
Gd 0.10 0.2
Fe 200 250
Mg 30 60
Mn 10 20
Mo 10 20
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