Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Specification for Boron-Based Neutron Absorbing Material Systems for Use in Nuclear Fuel Storage Racks in a Pool Environment
Automaticky preložený názov:
Standard Specification pre Boron-Based absorbujúce neutróny materiálových sústav pre použitie v jadrovom palive skladovacích regálov v bazéne prostredí
NORMA vydaná dňa 15.1.2016
Označenie normy: ASTM C992-16
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.1.2016
Kód tovaru: NS-632704
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
boron, spent fuel, storage rack,, ICS Number Code 27.120.01 (Nuclear energy in general)
1. Scope | ||||||||||||||||||
1.1 This specification defines criteria for boron-based neutron absorbing material systems used in racks in a pool environment for storage of nuclear light water reactor (LWR) spent-fuel assemblies or disassembled components to maintain sub-criticality in the storage rack system. 1.2 Boron-based neutron absorbing material systems normally consist of metallic boron or a chemical compound containing boron (for example, boron carbide, B1.3 In a boron-based absorber, neutron absorption occurs primarily by the boron-10 isotope that is present in natural boron to the extent of 18.3 ± 0.2 % by weight (depending upon the geological origin of the boron). Boron, enriched in boron-10 could also be used. 1.4 The materials systems described herein shall be functional – that is always be capable to maintain a boron-10 areal density such that subcriticality is maintained depending on the design specification for the service life in the operating environment of a nuclear spent fuel pool. 1.5 Observance of this specification does not relieve the user of the obligation to conform to all applicable international, national, and local regulations. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
||||||||||||||||||
2. Referenced Documents | ||||||||||||||||||
|
Posledná aktualizácia: 2024-05-15 (Počet položiek: 2 898 636)
© Copyright 2024 NORMSERVIS s.r.o.