Document: NUREG-0800
Document ID: 17e7897f-78f0-45fc-b048-53446c152a1e
Document Type: srp
Title: ESF ATMOSPHERE CLEANUP SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0702/ML070230010.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of ventilation and air filtration Secondary - Organization responsible for review of design basis accident radiological consequence analyses I. AREAS OF REVIEW This review addresses engineered safety feature (ESF) atmosphere cleanup systems designed for fission product removal in post accident environments. These systems generally include primary systems, such as in-containment recirculation, and secondary systems, such as standby gas treatment systems and emergency or post-accident air-cleaning systems for the fuel-handling building, control room, shield building, and areas containing ESF components. At the construction permit (CP) stage of review, the organization responsible for ventilation and air filtration reviews the information in the applicant’s safety analysis report (SAR) in the areas listed below. At the operating license (OL) stage, the organization responsible for ventilation and air filtration review consists of confirming the design accepted at the CP stage and evaluating the adequacy of the applicant’s technical specifications in these areas. For design certification (DC) reviews or combined license (COL) reviews involving an application that does not reference a DC, the organization responsible for ventilation and air filtration reviews the information in the DCD or SAR, as applicable, in the areas listed below. 6.5.1-2 Revision 3 - March 2007 For each ESF atmosphere cleanup system, the specific areas of review are as follows: 1. The system design, design objectives, and design criteria. The organization responsible for ventilation and air filtration reviews the methods of operation and the factors that could influence the filtration capabilities of the system, e.g., system interfaces and potential bypass routes. The components included in each atmosphere cleanup system and the seismic design category of each system are reviewed. Redundancy of the atmosphere cleanup