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GB/T 12714-2009: Americium-241 Beryllium neutron sources
Status: Valid GB/T 12714: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12714-2009 | English | 259 |
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3 days [Need to translate]
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Americium-241 Beryllium neutron sources
| Valid |
GB/T 12714-2009
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| GB/T 12714-1991 | English | 279 |
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3 days [Need to translate]
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Americium-Beryllium neutron sources
| Obsolete |
GB/T 12714-1991
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PDF similar to GB/T 12714-2009
Standard similar to GB/T 12714-2009 GB 13172 GB/T 15849 GB 12951 GB 10252 Basic data | Standard ID | GB/T 12714-2009 (GB/T12714-2009) | | Description (Translated English) | Americium-241 Beryllium neutron sources | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F51 | | Classification of International Standard | 27.120.99 | | Word Count Estimation | 11,168 | | Date of Issue | 2009-03-13 | | Date of Implementation | 2009-11-01 | | Older Standard (superseded by this standard) | GB/T 12714-1991 | | Quoted Standard | GB 4075-2009; GB 11806; GB 15849; GBZ 125 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 3, 2009 (No. 143 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 americium beryllium neutron source product code, product structure and specifications, technical requirements, test methods, inspection rules, marking, inspection certificates and instructions, packaging, transportation and storage, etc., This standard applies to americium-241 and americium made ??of metal beryllium beryllium neutron source, the other (��, n) neutron source category isotopes can refer to the use, | GB/T 12714-2009: Americium-241 Beryllium neutron sources---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.
Americium-241 Beryllium neutron sources
ICS 27.120.99
F51
National Standards of People's Republic of China
Replacing GB/T 12714-1991
Americium-beryllium neutron source
Posted 2009-03-13
2009-11-01 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 12714-1991 "americium-beryllium neutron source." Compared with GB/T 12714-1991, mainly in the following changes.
--- Change the product code;
--- The product specification table appropriate adjustments;
--- Increasing the source envelope leakage inspection requirements;
--- Increase the safe use of the source term requirements;
--- Increased radioactive container work requirements.
This standard Annex A, Annex B and Annex C is informative 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 Institute of Atomic Energy.
Drafters of this standard. Wen Zhongming.
This standard replaces the previous standard release case. GB/T 12714-1991.
Americium-beryllium neutron source
1 Scope
This standard specifies the product code, product structure and specifications, technical requirements, test methods, inspection rules americium beryllium neutron source, identification, inspection
Certificates and instructions for use
Packaging, transport and storage and so on.
This standard applies to americium-beryllium neutron source americium-241 and made of metal beryllium, other (α, n) neutron source can refer to the class using the isotope.
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 4075-2009 Sealed radioactive sources - General requirements and classification
GB 11806 Regulations for the Safe Transport of Radioactive Substances
Leakage test methods GB 15849 sealed radioactive sources
GB Z125 protection standards containing sealed sources instruments
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
When the user presses the neutron source using a conventional purchase activity.
3.2
Press feed production accounting of neutron source activity.
3.3
The number of neutrons from neutron source produced in the body per unit time in n/s.
3.4
Minimum leakage does not occur under normal conditions of use.
3.5
Radioactive americium beryllium neutron source by oxidation of americium and beryllium metal composition having a certain geometry traits substances.
4 Product code
Americium-beryllium neutron source code consists of two components.
The first part with two letters on behalf of AB americium beryllium neutron source.
The second part with four digital, the first one represents the source geometry specifications, after three representatives of the neutron emission rate.
As the code represents the envelope AB1206 americium beryllium neutron source is a type of neutron emission rate of 2 × 106n/s.
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