Document: NUREG-0800
Document ID: c37e8c68-ed08-434b-b15c-438f1915858a
Document Type: srp
Title: PROCESS AND POST-ACCIDENT SAMPLING SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070526.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.2
CFR Part: 
CFR Title: 

Content:
erational procedures of post-accident sampling for the reactor coolant and containment atmosphere are reviewed to determine the capability of promptly obtaining samples, under accident conditions, for chemical and radiochemical analyses. Review Interfaces:6 The EMCB will coordinate other branches' evaluations that interface with the overall review of the system as follows: 1. The Plant Systems Branch (SPLB) performs the following: (a) review of the ventilation systems which may be operating during post-accident sampling under SRP Section 11.3; (b) verifies, under SRP Section 3.11, that those valves which are inaccessible during an accident are environmentally qualified to ensure operability under accident conditions; (c) reviews, under SRP Section 3.6.1, the design with respect to the effects of externally or internally generated missiles, pipe whip, and jet impingement forces associated with postulated pipe breaks in high energy fluid systems or leakage cracks in moderate energy fluid systems. 2. The Emergency Preparedness and Radiation Protection Branch (PERB) performs the following: (a) reviews, under SRP Section 12.3-12.4, the potential personal radiation exposure during post-accident sampling; (b) reviews, under SRP Section 11.5, the sampling and monitoring systems for radwaste processing systems. 3. The Containment Systems and Severe Accident Branch (SCSB), under SRP Section 6.2.4, verifies that remotely operated containment isolation valves in the PSS and PAS are designed to close on a containment isolation signal (CIS) or safety injection signal (SIS). 4. The Instrumentation and Controls Branch (HICB), under SRP Section 7.3, verifies that an override capability exists for the containment isolation valves which will be used for post-accident sampling of the reactor coolant, containment sump water, and containment atmosphere without clearing the CIS or SIS. 5. The Electrical Engineering Branch (EELB), under SRP Section 8.3.1, ensures that power supplies are