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
CFR Part: 
CFR Title: 

Content:
s effluents, a continuous sampling system should be used with replaceable particulate filters (fixed or moving) and radioiodine absorber cartridges. The system should be designed to automatically take representative samples, with minimal and quantifiable line or deposition losses, at a known flow rate established in accordance with American National Standards Institute (ANSI)/Health Physics Society (HPS) N13.1-2011, “Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities,” approved March 30, 2011. iii. For intermittently operating effluent release points, the system should be designed to automatically take samples whenever effluents are flowing in the discharge stream using a known ratio between discharges and sampling stream flow rates. iv. Periodic sampling and analysis frequencies and types of radiological analyses should be specified for all samples described above in the RETS/SREC and ODCM. 2. Provisions should be made for the installation of instrumentation and monitoring equipment and periodic or continuous sampling and analysis of radioactive waste process systems. For GDC 60 and GDC 63, as they relate to RWMS, detection of excessive radiation levels and initiation of appropriate safety actions, the design of systems should meet the guidance of Appendix 11.5-A to this SRP section, RG 1.21 (Position C, as applicable), RG 4.15, “Quality Assurance for Radiological Monitoring Programs (Inception through Normal Operations to License Termination)—Effluent Streams and the Environment,” (Position C); and Appendix A to RG 1.33. SRP Chapter 7 and BTP 7-10 provide additional guidance on the application of RG 1.97 for any portion of 11.5-16 Draft Revision 6 – August 2014 the PERMISS (accident monitoring systems) that supports safety-related functions, as identified by the applicant. A. Provisions should be made to ensure representative sampling from radioactive process streams and tank contents.