Patent ID: 7121135
Filing Date: 2006-10-17
Classification: G01M,G01N

Abstract:
1. A method for determining the permeation of a barrier layer on the surface of a container ( 1 ), in which the container ( 1 ) is put into a pressure-tightly closable vessel ( 5 ), it is left to degas after a conditioning time on the side with the barrier layer, the pressure in relation to time is measured and permeation of the barrier layer is determined from those measurement data, characterised in that the pressure-tightly closable vessel ( 5 ) and the container ( 1 ) disposed therein are evacuated, the pressure of a plurality of substances emitted from the container wall is measured, the gradient of the pressure-time curve based on the change of the pressure in relation to time is determined and the quality of the barrier layer is ascertained as a direct measurement with reference to the pressure-time curve, and a first measuring tube (