Patent ID: 6957155
Filing Date: 2005-10-18
Classification: G01M

Abstract:
1. A method for inspecting leakage of a container, comprising: a differential pressure generation step of generating a differential pressure between the inside and the outside of the container; an ozone gas addition step of adding ozone gas to a higher pressure side of the inside and the outside of the container; an ozone concentration detection step of measuring an ozone concentration of a lower pressure side of the inside and the outside of the container; and a leakage determination step of determining presence of the leakage of the container based on a change in the ozone concentration, wherein the leakage determination step has an ozone concentration comparison step of calculating a concentration difference between the ozone concentration and a predetermined ozone concentration, and an ozone concentration determination step of determining presence of leakage when the concentration difference is larger than a predetermined value.