Method for evaluating the virus-removing capability of a porous

Details Method for evaluating the virus-removing capability of a porous Method for evaluating the virus-removing capability of a porous

1992-06-05

1993-02-09

Sever, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

73861, B01D 6302

Patent

active

051850826

ABSTRACT:
Disclosed is a method for the evaluation of the virus-removing capability of a porous polymeric membrane module for removing viruses by filtration, which comprises testing I in which a transmembrane pressure lowering from predetermined value Ph a predetermined period of time after the termination of the supply of a gas is measured with respect to the porous polymeric membrane module, wherein the value Ph satisfies the formula: d<Ph<c, wherein d and c are respectively the transmembrane pressures at points (d) and (c) in FIG. 1 hereof. By the method of the present invention, it has become possible for the first time to effectively and efficiency select a module which can be suitably used for removing viruses from a virus-containing fluid and to obtain to fluid substantially free of the virus.

REFERENCES:
patent: 4808315 (1989-03-01), Manabe et al.

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