Current flow integrity test

Electricity: measuring and testing – Determining nonelectric properties by measuring electric...

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324439, G01N 2702

Patent

active

054771552

ABSTRACT:
A new method and apparatus is described for conducting an integrity test on porous membranes and membrane filters and for conducting a pore-size characterization of membrane. The method and apparatus apply to membrane integrity tests and pore-size characterizations which are based on the dependence on the pore size of the pressure required to intrude a non-wetting, electrically conductive liquid into and through the pores. Electrical-measurement methods are described for identifying the pressure at which intrusion occurs.

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patent: 5183545 (1993-02-01), Branca et al.

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