Diffusive flow test
Автор: Hall Pyke
Загружено: 2018-06-27
Просмотров: 3637
Описание:
Determining if a sterilizing grade filter is integral can be done via non-destructive integrity testing.
In the diffusive flow test the membrane is wet with water, and the upstream gas is then held constant at a specified pressure near, but somewhat below, the bubble point of an integral filter. A measurement is made of the flow rate of gas through the filter and compared to the manufacturer’s specification.
A measured flow rate equal to or less than the specified value indicates that the filter Is integral. A higher flow rate indicates that the filter being tested has pores or defects which were purged of water at the test pressure, resulting in bulk flow through the filter.
For more information visit www.hallpyke.ie/products/integrity-testing-services/
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