LLRTs are performed on containment isolation valves, hatches and other appurtenances penetrating the containment.
2.
Containment buildings in the U . S . are subjected to mandatory testing of the containment and containment isolation provisions under 10 CFR Part 50, Appendix J . Containment Integrated Leakage Rate Tests ( Type " A " tests or CILRTs ) are performed on a 15-year basis.
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