Gas Density Increase Measurement in a Film Chamber

摘要

A method for a tightness test of a test piece (16) in a test chamber (10) whose wall is at least partly made of a flexible material, wherein said test piece is introduced into said test chamber and said test chamber is then evacuated, is characterized in that the tightness test is performed by measuring the gas density inside said test chamber (10) in the area outside said test piece (16).