Document: NUREG-0800
Document ID: 8536691d-4254-4c01-a5ec-aa9dee960958
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1007/ML100740509.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
collect a sample at a fixed volume established at a rate that is proportional to the effluent stream discharge flow rate. iii. For radioactive materials, other than noble gases in gaseous effluents, a continuous sampling system should be used with replaceable particulate filters and radioiodine adsorbers. The system should be designed to automatically take representative samples at a known flow rate established in accordance with American National Standards Institute/Health Physics Society (ANSI/HPS) N13.1-1999. 11.5-10 Revision 5 - May 2010 iv. For intermittently operating effluent release points, the system should be designed to automatically take samples whenever flow is in the effluent stream using a known ratio between the discharge and sampling stream flow rates. v. Periodic sampling and analysis frequencies and types of radiological analyses should be specified for all samples described above in the SREC, ODCM, and/or PCP. 2. Provisions should be made for the installation of instrumentation and monitoring equipment and/or periodic or continuous sampling and analysis of radioactive waste process systems. For GDCs 60 and 63, as they relate to radioactive waste systems, detection of excessive radiation levels, and initiation of appropriate safety actions, the design of systems should meet the guidelines of Appendix 11.5-A, RG 1.21 (Position C, as applicable), RG 1.97 (Position C and Table 1 or 2, as applicable), RG 4.15 (Position C), and Appendix A to RG 1.33. SRP BTP 7-10 (see SRP Section 7.5) provides additional guidance on the application of RG 1.97. A. Provisions should be made to ensure representative sampling from radioactive process streams and tank contents. Recirculation pumps for liquid waste tanks (collection or sample test tanks) should be capable of recirculating at a rate of not less than two tank volumes in 8 hours. For gaseous and liquid process stream samples, provisions should be made for purging sampling lines and for reducing the plate-out of