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:
the requirements of Appendix J. Appendix J in Section III.A.1(a) requires that no adjustment be made to the containment prior to the performance of the containment integrated leak rate test (CILRT) so that the containment can be tested in a as close to the "as is" condition as practical. Instrumentation lines that penetrate 18 containment, however, are sometimes isolated for the CILRT. To assureensure that they are 19 included in the test, the following should be done. Leak testing of instrumentation lines that penetrate containment may be done in conjunction with either the local leak rate tests or the containment integrated leak rate test. Instrumentation lines that are not locally leak tested should not be isolated from the containment atmosphere during the performance of the CILRT. The measured leakage rates from instrumentation lines that are locally leak tested should be added to the CILRT result. Provisions should be made to assureensure that instrumentation lines 20 isolated during the CILRT are restored to their operable status following the test. Appendix J in Section III.A.1(d) addresses the opening of systems for the containment integrated leak rate test if they are open to the containment atmosphere under post-accident conditions and become an extension of the boundary of the containment. In this regard, leak testing of hydrogen recombiner systems located outside containment should be included in the local leak rate test program. A local leak test should be done at the time of the CILRT and the measured leak rate added to the CILRT result. Alternately, the recombiner system may be open to the containment atmosphere during the performance of the CILRT. All leakage tests, performed by either pneumatic or hydrostatic means, should have the 21 capability to 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