タイトルまたは説明

Vacuum Leak Tester ASTM D***8 Test Principle
A test sample is placed into a vacuum chamber with water and the air above water level is evacuated by a venturi vacuum ejector. A quantified pressure difference is created inside and outside the sample and the continuous leaks can be observed and identified when the sample is inflated. 

Leak tester is used in food, beverage, pharmaceutical, daily chemical and electronic industries and is for the seal integrity test
of various forms of packages.