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    • 4. 发明申请
    • METHOD AND DEVICE FOR EXAMINING MULTI-LAYERED FILMS AND CONTAINERS PRODUCED THEREFROM
    • 用于测试复合材料及其制品的方法和设备制造的容器
    • WO0250525A3
    • 2003-04-17
    • PCT/EP0114638
    • 2001-12-13
    • BOEHRINGER INGELHEIM INTHENNING CARSTENWITTEKIND JUERGENKLADDERS HEINRICHHAUSMANN MATTHIASKUEHNEL ANDREASRENGEL HEIKO
    • HENNING CARSTENWITTEKIND JUERGENKLADDERS HEINRICHHAUSMANN MATTHIASKUEHNEL ANDREASRENGEL HEIKO
    • G01N27/92G01N27/20G01N27/26G01N27/66
    • G01N27/205
    • The invention relates to a method and a device for detecting gas-permeable damage points in an electrically non-conductive layer which can be embodied as a single layer or a multi-layered composite comprising at least one conductive layer. A test piece is arranged in a test chamber. The layer which is to be tested has an electrically conductive layer on the one side and a gas chamber on the other side. The gas in the gas chamber is ionised at a pre-defined low pressure by means of an electric gas discharge. A counter electrode which is arranged in the gas chamber forms a test current circuit with a voltage source and a measuring device. If the layer which is to be tested contains a damage point, the gas discharge is maintained and a direct current is measured in the test current circuit, said current acting as an indicator for a damage point. Due to said method, it is possible to detect damage points are liquid tight or which are only present in a non-conductive layer in a multi-layered composite. The inventive method is used in containers for sensitive pharmaceutical preparations, if the containers are subjected to exacting requirements with regard to the impermability thereof during a storage period or application period lasting several months.
    • 所述Erfinung涉及一种用于在一个elecktrisch非导电层,其可以作为enzelne层或作为与至少一个导电层的多层复合检测气体可渗透损伤点的方法未装置。 将样品放置在测试室中。 测试层的位于在其一侧上在其另一侧,气体空间上的导电层的未。 在气体空间中的气体在通过电气体放电的装置一预定的负压被电离。 甲安装在气体空间相对电极形成与一个Spannungaquelle一个Prüfstomkreis和测量装置。 如果要测试的层含有损坏的点,在一个Prüfstomkreis当前显著,同时维持气体放电,其用作受损区域的指标进行测定。 根据上述方法,缺陷可以被检测到是不透液体或仅在非导电层存在于多层复合。 该方法被应用到容器敏感药物制剂汶南容器werden.m期间温纳的存储时间或使用时间很多个月放置严格的要求相对于它们的密封性