Document: NUREG-0800
Document ID: 307194c1-0b51-4a4d-bd65-440bb260c4bb
Document Type: srp
Title: PROCESS AND POST-ACCIDENT SAMPLING SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350552.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.2
CFR Part: 
CFR Title: 

Content:
es of process fluids and the locations of sampling points with the guidelines for obtaining representative samples of fluids contained in regulatory position C.6 of Regulatory Guide 1.21 (reference 1) and with the prin- ciples for obtaining representative samples of gases contained in ANSI N13.1-1969 (reference 3). 3. CMEB compares the seismic design and quality group classifications of the PSS and PAS to the classifications of the fluid systems to which the samp- ling system is connected. 4. CMEB reviews the technical specifications for process sampling to deter- mine that the content and intent of the technical specifications are in agreement with the requirements developed as a result of the staff's review. 5. CMEB verifies that provisions have been made to limit the potential for reactor coolant loss from the rupture of a sample line and provides Accident Evaluation Branch with estimates of RCS fluid losses that would result from sample line rupture. 6. CMEB reviews the post-accident sampling system and operational procedures to determine compliance with the guidelines of item II.B.3 in NUREG-0737 (reference 9) and of Regulatory Guide 1.97 (reference 8), and the additional clarifications in acceptance criterion 5 above. CMEB verifies that dilution, mixing and sample collection steps will not introduce excessive analytical errors. CMEB verifies that the frequency of system functional testing wiill be adequate to ensure operability of the system and that operators are trained and kept proficient in the use of the system. CMEB reviews the procedure for relating radionuclide concentrations to the extent of core damage. CMEB reviews information pertaining to accuracy and sensi- tivity of chemical analysis procedures and on-line instrumentation under post-accident chemistry conditions (high specific sample activity and possible analytical interference due to high levels of fission products- iodine, iodide, bromide, cesium, rubidium). IV. EVALUATION FINDINGS CMEB