Membrane device for sterility testing

Details Membrane device for sterility testing Membrane device for sterility testing

1983-12-23

1987-02-03

Spear, Frank

Liquid purification or separation

Filter

Divided filtered, and unfiltered liquid passages

1562722, 210445, 210455, B01D 1300

Patent

active

046407774

ABSTRACT:
Apparatus for testing the sterility of fluids consisting of at least one hermetically sealed test container formed from a top portion, a bottom portion, a filter holder and a test filter. The filter is formed entirely from a hydrophilic material. The filter holder and test filter are welded to the top and bottom portions by a pressure-tight and vacuum-tight connection. Fluid is passed through the apparatus and through the test filter to deposit any microorganisms on the filter. Lateral bypass of fluid around the periphery of the test filter is eliminated.

REFERENCES:
patent: 3295686 (1967-01-01), Krueger
patent: 3932153 (1976-01-01), Byrns
patent: 4036698 (1977-07-01), Bush et al.
patent: 4054523 (1977-10-01), Ingenito et al.

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