Document: NUREG-0800
Document ID: 91a12934-f0d9-4573-ad3b-553ab75dabc0
Document Type: srp
Title: FISSION PRODUCT CONTROL SYSTEMS AND STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600408.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.3
CFR Part: 
CFR Title: 

Content:
adsorption units as described in Regulatory Guide 1.52. Justification for fission product retention systems should include analytical bases addressing the important physical and chemical variables of the fission product removal and retention processes. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. GDC 41 requires that fission product control systems be provided in the reactor containment to reduce the concentration of fission products released to the environment after postulated accidents. In the primary containment, fission product control systems include spray, filtration systems, and pressure suppression devices; in the secondary containment, such systems include fission product removal and holdup systems. The function of the fission product control systems is to mitigate the radiological offsite consequences of postulated accidents by decreasing the concentration of fission products available for release to the environment. The review and evaluation of these fission product control systems is the subject of SRP Section 6.5.3. The system and component design criteria for fission product control systems are outlined in Regulatory Guide 1.52, Regulatory Positions C.1, C.2, and C.3. Meeting the requirements imposed by GDC 41 provides assurance that offsite radiation doses resulting from postulated accidents will be within the doses specified in 10 CFR Part 100. 2. GDC 42 requires that the fission product control systems be designed to permit periodic inspections of important components. The fission product control systems are provided to ensure that offsite radiation doses resulting from postulated accidents are within the doses specified in 10 CFR Part 100. The ability to perform periodic inspection is essential for ensuring that components of the systems will function as designed. Testing and inspection criteria for fission