Method for evaluating the virus-removing capability of...

B - Operations – Transporting – 01 – D

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B01D 61/14 (2006.01) A61L 2/02 (2006.01) B01D 65/10 (2006.01)

Patent

CA 2070358

Disclosed is a method for the evaluation of the virus-removing capability of a porous polymericic 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 polymericic 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 efficiently select a module which can be suitably used for removing viruses from a virus-containing fluid and to obtain a fluid substantially free of the virus.

Divulgation d'une méthode pour l'évaluation de la capacité d'élimination virale d'un module à membrane polymérique poreux, consistant à éliminer les virus par filtration; la méthode comprend l'essai I, dans lequel la baisse de pression transmembrane à partir d'une valeur Ph déterminée d'avance, pendant une période de temps déterminée d'avance, après la fin de l'alimentation en gaz, est mesurée en fonction du module à membrane polymérique poreux; la valeur de Ph satisfait à la formule d < Ph < c, où d et c sont respectivement les pressions transmembrane aux points (d) et (c) de la Fig. 1. Grâce à la méthode divulguée ici, il devient possible pour la première fois de choisir de façon efficace et rentable un module pouvant être employé de façon appropriée pour éliminer des virus dans un fluide qui en renferme et d'obtenir ainsi un fluide pratiquement exempt de virus.

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