Document: NUREG-0800
Document ID: de4e4c58-fcfd-4b28-8207-5ae6fc761ee2
Document Type: srp
Title: for the LWMS and GWMS, respectively.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1502/ML15029A174.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.3
CFR Part: 
CFR Title: 

Content:
are compared to the criteria in determining the appropriate safety classification. In addition, RG 1.206, Part I, C.I.3, Sections 3.2.1 and 3.2.2, and SRP Section 3.8.4 identify applicable acceptance criteria in evaluating SSCs requiring seismic design considerations and discuss differences from the guidance of RG 1.143. Meeting the requirements of GDC 61 provides reasonable assurance that releases of radioactive materials during normal operation and AOOs, including adverse conditions on system components, will not result in radioactive material concentrations and radiation doses that exceed the limits specified in 10 CFR Part 20. In addition, meeting this requirement will help ensure that the SWMS will continue to perform its functions under postulated accident conditions. Using the guidance in RG 1.143 provides reasonable assurance that the assigned safety classifications for structures housing the SWMS and its components comply with the requirements of GDC 2 and 61 for natural phenomena and man-induced hazards in assigning the safety classifications to SSCs of the SWMS for design purposes. 6. Radioactive materials should be processed, handled, and stored using equipment, methods, and procedures that avoid or minimize potential releases of radioactivity in the event of a fire. GDC 3 relates to fire protection features for SSCs important to safety and can be used to address SWMS design features and operational safeguards to prevent, for example, the generation of exothermic reactions and explosive gas mixtures through the introduction and mixing of chemical additives with ion-exchange resins, and fires of contaminated charcoal adsorption media and HEPA filters used in ventilation systems. Such considerations should also address the bulk storage of spent-activated carbon, storage methods and procedures to avoid the potential for spontaneous heating and auto-ignition of activated carbon, which may be due to radioactive decay heat and adsorption of various vapors and