Method of testing leak rate of reactor containment building

Abstract

Disclosed is a method of testing a leak rate of a reactor containment building, the method including: a division step of dividing the reactor containment building into an upper containment area and a lower containment area by a spectacle flange; a measurement step of measuring the leak rate of the containment building after pressurizing the inside of the containment building at a maximum pressure; and an identification step of identifying whether the leak rate measured in the measurement step satisfies an allowable standard for the leak rate of the containment building.

Dependencies are inferred from the claim text.