公开(公告)号：US20140298893A1

公开(公告)日：2014-10-09

申请号：US14240645

申请日：2012-06-26

申请人： Michael Laubstein ,  Juergen Van Den Boogaard ,  Dirk Leiser

发明人： Michael Laubstein ,  Juergen Van Den Boogaard ,  Dirk Leiser

IPC分类号： G01N15/08

CPC分类号： G01N15/0826 ,  B01D65/102

摘要： A method for testing integrity of a hydrophobic, porous diaphragm filter (42) includes arranging the filter (42) in a non-wetted state in a test housing (30) so that the filter (42) divides an upstream housing region (30a) from a downstream housing region (30b), completely filling the upstream housing region (30a) with a test liquid that does not wet the hydrophobic diaphragm filter (42), incompletely filling a reservoir (12) that is connected to a liquid feed line (16) of the test housing (30), charging the reservoir (12) with compressed air at a constant pressure below the intrusion pressure of the filter, and determining a substance flow at the reservoir (12). The substance flow to be determined is a mass flow out of the reservoir (12) determined as a decrease in the overall weight of the reservoir (12).

摘要翻译： 一种用于测试疏水性多孔膜过滤器（42）的完整性的方法包括将过滤器（42）以非润湿状态布置在测试壳体（30）中，使得过滤器（42）将上游壳体区域（30a） 从下游壳体区域（30b）中，用不会使疏水膜过滤器（42）不润湿的测试液体完全填充上游壳体区域（30a），不完全地填充连接到液体供给管线的储存器（12） 16），其中压缩空气在低于过滤器的入侵压力的恒定压力下对储存器（12）进行充电，并且确定储存器（12）处的物质流。 要确定的物质流量是由储存器（12）排出的质量流量，其确定为储存器（12）的总重量的减小。