Document: NUREG-0800
Document ID: 3c241845-034f-4f89-b12a-f51967895c13
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1307/ML13071A494.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
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Content:
in achieving the same function without diverting any portion of the effluent stream. In specific applications, radiation monitoring systems are used to automatically initiate a protective action when exceeding a defined instrumentation alarm set-point, such as in terminating or diverting a process stream or effluent releases. Nonsafety-related systems include radiological monitoring instrumentation that serves to control and monitor radioactivity levels and radioactive releases, including monitoring systems that support process streams, ambient airborne concentrations in plant areas, plant systems integrity, and building ventilation systems servicing plant facilities housing irradiated fuel, demineralizers and filters, waste management equipment (as permanently installed or skid-mounted), and radioactive wastes and materials held in storage. For radiation monitoring systems that supports safety-related functions, as identified by the applicant, the review of these design features and operating characteristics is performed using the guidance in SRP Chapter 7, “Instrumentation and Controls Overview of Review Process,” BTP 7-10, “Guidance on Application of Regulatory Guide 1.97,” and SRP Section 13.3, “Emergency Planning.” In this context, the review, using Regulatory Guide (RG) 1.97, “Criteria for Accident Monitoring Instrumentation for Nuclear Power Plants,” and Institute of Electrical and Electronics Engineers (IEEE) Std. 497-2002, “IEEE Standard Criteria for Accident Monitoring 11.5-3 Draft Revision 6 – August 2014 Instrumentation for Nuclear Power Generating Stations,” issued 2002; and IEEE Std. 603-1991, “IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations,” issued 1991, addresses the performance, design, qualification, display, quality assurance (QA), and selection of monitoring variables of radiation monitoring equipment required for accident monitoring and sampling. Radiological monitoring instrumentation