Document: NUREG-0800
Document ID: ecaaf87c-d5d4-431d-ae8f-8c1afc037312
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070612.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
ned to collect a fixed volume of sample at a rate proportional to the measured flow in the sampled stream discharge. (3) Radioactive materials other than noble gases in gaseous effluents. A continuous sampling system with replaceable particulate filter and radioiodine adsorber. The system should be designed to automatically take samples at a fixed or measured flow ratio of the sample throughput to the sampled stream discharge flow. For intermittently operating effluent release points, the system should be designed to automatically take samples whenever there is flow in the effluent stream. For all of the above samples, a periodic analysis frequency for the collected samples should be specified in the technical specificationsRETS, ODCM, and/or PCP.35 2. Provisions should be made for the instrumented monitoring of, or the periodic or continuous sampling and analysis of, radioactive waste process systems. To meet 11.5-5 DRAFT Rev. 4 - April 1996 Criteria GDC 60 and GDC 63, as they relate to radioactive waste systems and detection of excessive radiation levels and initiation of appropriate safety actions, the design of systems should meet the guidelines of Appendix 11.5-A (this SRP section), Regulatory Guide 1.21 (Position C, as applicable), Regulatory Guide 1.97 (Position C and Table 1 or Table 2, as applicable), and Regulatory Guide 4.15 (Position C). a. Provisions should be made to assure ensure representative sampling from 36 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 liquid process stream samples, provisions should be made for purging sample lines and for reducing plateout in sample lines. Provisions for gaseous sampling from ducts and stacks should be in agreement with ANSI N13.1-1993. (Ref. 5) 37 38 b. Where practicable, provisions should be made to collect samples from process