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:
Category I requirements, in accordance with Regulatory Position C.3 in RG 1.26. 9.3.2-8 Revision 3 - March 2007 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. 10 CFR 20.1101(b) requires that licensees use, to the extent practicable, procedures and engineering controls based upon sound radiation protection principles to achieve doses that are ALARA. The radiation protection community has recognized that it is prudent to avoid unnecessary exposure to radiation and to maintain doses at ALARA levels based on the assumption that a nonthreshold linear relationship exists between dose and biological effects that is independent of the dose rate. The objective of the ALARA requirement for the PSS is to ensure that licensees make every reasonable effort in planning, design, and operation of the system to maintain exposures to radiation as far below the limits of 10 CFR Part 20 as is reasonably achievable. Appropriate station layout and design features should be provided to reduce the potential doses to personnel who must operate, service, or inspect the station PSSs. The safety benefit of implementing radiation protection goals for the PSSs is to reduce doses wherever and whenever reasonably achievable, thereby reducing the risk that is assumed (for radiation protection purposes) to be proportional to the dose. 2. GDC 1 requires that SSCs important to safety be designed, fabricated, erected and tested to quality standards commensurate with the importance of the safety functions to be performed. The PSS is important to safety in that (a) through connections to systems, such as the reactor coolant system, that are designed and classified in accordance with recognized quality standards, their failure could adversely affect the integrity of these systems, (b) during normal operation, the PSS provides information that allows the operator to