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Standard Specification for Nuclear Graphite Suitable for Components Subjected to Low Neutron Irradiation Dose
Přeložit název
NORMA vydána dne 1.11.2021
Označení normy: ASTM D7301-21
Datum vydání normy: 1.11.2021
Kód zboží: NS-1043802
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
chemical properties, mechanical properties, nuclear graphite, physical properties, processing,, ICS Number Code 27.120.20 (Nuclear power plants. Safety)
1. Scope | ||||||||||||||||||||
1.1This specification covers the classification, processing, and properties of nuclear grade graphite billets with dimensions sufficient to meet the designers requirements for reflector blocks and core support structures, in a high temperature gas cooled reactor. The graphite classes specified here would be suitable for reactor core applications where neutron irradiation induced dimensional changes are not a significant design consideration. 1.2The purpose of this specification is to document the minimum acceptable properties and levels of quality assurance and traceability for nuclear grade graphite suitable for components subjected to low irradiation dose. Nuclear graphites meeting the requirements of Specification D7219 are also suitable for components subjected to low neutron irradiation dose. 1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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