Document: NUREG-0800
Document ID: f7c58873-6f34-4f88-8e26-90fc2e310d25
Document Type: srp
Title: PROCESS AND POST-ACCIDENT SAMPLING SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070680137.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.2
CFR Part: 
CFR Title: 

Content:
eams back to the system of origin or to an appropriate waste treatment system to keep radiation exposures at ALARA levels, and that these provisions conform with the guidelines of Regulatory Positions 2.d.(2), 2.f.(3), and 2.f.(8) in RG 8.8. 5. The primary review organization, with the applicable secondary review organization, as necessary, verifies that isolation valves fail in the closed position to control the release of radioactive materials to the environment. 6. The primary review organization, the applicable secondary review organization, as necessary, and the organization responsible for the review of radiation protection verify that passive flow restrictions to limit reactor coolant loss from a rupture of the sample line are provided to keep radiation exposures to ALARA levels and to control the release of radioactive materials to the environment. The guidelines of Regulatory Position 2.i.(6) in RG 8.8 should be followed to meet this criterion. Redundant environmentally qualified, remotely operated isolation valves may replace passive flow restrictions in the sample lines to limit potential leakage. The automatic containment isolation valves should close on containment isolation signals or safety injection signals. 7. The primary review organization compares the seismic design and quality group classifications of the PSS to the classifications of the fluid systems to which the sampling system is connected and confirms that the PSS satisfies the acceptance criteria of Sections 3.2.1 and 3.2.2. The organization responsible for the review of instrumentation and control systems compares the seismic design and quality group classifications of the instruments for the PSS to the classifications of the fluid systems to which the instruments of the sampling system is connected and confirms that the instrumentation satisfies the acceptance criteria of Section 3.10. 9.3.2-12 Revision 3 - March 2007 8. The organization responsible for the review of chemical engineering