Document: NUREG-0800
Document ID: ef80f444-3259-4db1-b721-096a73435ff7
Document Type: srp
Title: CONTAINMENT LEAKAGE TESTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070464.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.6
CFR Part: 
CFR Title: 

Content:
quantify the leakage rates either explicitly or by a conservative bounding method to satisfy test acceptance criteria in Appendix J. Appendix J in Section III.C.1 prescribes methods for conducting the containment isolation valve leak rate tests. At the construction permit (CP) or standard design certification stage, the 22 applicant should identify all containment isolation valves that will be locally (Type C) leak tested with the test pressure applied in a direction opposite to that which would occur under accident conditions and should commit to justify, at the OL or COL stage, that such testing 23 24 will result in equivalent or more conservative results. DRAFT Rev. 3 - April 1996 6.2.6-4 With regard to the application of Section III.C.1 of Appendix J for leak testing of main steam isolation valves in boiling water reactor plants, a test pressure of less than P and the test a acceptance criteria should be justified and included in the plant technical specifications. Hydrostatic testing of containment isolation valves is permissible if the line is not a potential containment atmosphere leak path and may be found acceptable if it can be demonstrated, in accordance with the requirements of Section III.C of Appendix J, that a liquid inventory is available to maintain a water seal (while assuming the single failure of any active component) during the post-accident period. Limits for liquid leakage should be assigned to these valves based on analysis and included in the plant technical specifications. Leak testing, to assureensure that containment integrity is restored following the test, vent, and 25 drain (TVD) connections that are used to facilitate local leak testing and the performance of the containment integrated leak rate test, should be under administrative control and should be subject to periodic surveillance, to assureensure their integrity and to verify the effectiveness of 26 administrative controls. The testing requirements for BWR drywell steam bypass