Method and apparatus for rapidly testing the integrity of...

Details Method and apparatus for rapidly testing the integrity of... Method and apparatus for rapidly testing the integrity of...

G - Physics

01

N

G01N 7/10 (2006.01) B01D 29/11 (2006.01) B01D 35/00 (2006.01) G01N 15/08 (2006.01)

Patent

CA 2112494

A method of testing the integrity of at least one filter element in a filter assembly, the filter element or elements being connected to a common outlet conduit, is described, wherein the method comprises the steps: a) wetting the filter material of said at least one filter element, b) subjecting the inlet side of the filter element having wetted filter material to a gas pressure, c) measuring the pressure (P i) in the outlet conduit as a function of time, with a downstream outlet valve being closed, d) determining whether the pressure measured at a preselected time exceeds a reference pressure by a pre-determined amount, or determining whether the time required to reach a preselected pres- sure is shorter than a reference time by a pre-determined amount.

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