application of a dichtigkeitsprüfverfahrens for non-destructive investigation of aqueous foods

摘要

in this method for determination of leaks in a sterilpackung sterilpackung is evacuated, the pack is then partially filled with an inert gas, and then the pack in a test chamber is introduced. the test chamber is then evacuated to a low restdruck and restgas the test chamber is extracted and a mass spectrum.as a result from a leaking pack vapour emitted, as long as water is available in the pack, a predetermined vakuumendwert the test chamber can be achieved. small leaks from the pack escaping inert gas helium, which in particular can be identified and displayed in the mass spectrometer.