ASTM C0784-20
Standard Specification for Nuclear-Grade Aluminum Oxide-Boron Carbide Composite Pellets
| Označení normy: | ASTM C0784-20 |
| Vydáno: | 01.01.2020 |
| Status: | Active |
| Počet stran: | 3 |
| Sekce: | 12.01 |
| Označení: | absorber pellets; aluminum oxide; boron carbide; poison pellets ; |
| ASTM označení: | ASTM C784 |
| Nahrazuje: | C0784-16 |
This specification applies to composite pellets composed of mixtures of nuclear-grade aluminum oxide and boron carbide that may be ultimately used in a reactor core, for example, in neutron absorber rods. Specimens shall be sampled and tested as appropriate, and shall adhere accordingly to required chemical compositions, physical dimensions, density, boron carbide homogeneity, mechanical properties, visual appearance, end and circumferential chips, cracks, and fissures and other defects.
1.1 This specification applies to pellets composed of mixtures of aluminum oxide and boron carbide that may be ultimately used in a reactor core, for example, in neutron absorber rods.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.3 This 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.