Method for detecting membrane leakage

Details Method for detecting membrane leakage Method for detecting membrane leakage

1978-10-04

1980-02-19

Swisher, S. Clement

Measuring and testing

With fluid pressure

Leakage

G01M 322

Patent

active

041888170

ABSTRACT:
Method for detecting leakage of semipermeable membranes or hollow fibers, said membranes or fibers exhibiting salt rejection, which comprises contacting one side of the membrane or fiber with an aqueous salt solution so that purified water will pass across non-leaking members to the second side and a salt enriched aqueous solution will pass to the second side of leaking members, and measuring the salt content of the aqueous solution on the second side of the member so that leaking members can be detected.

REFERENCES:
patent: 3254526 (1966-06-01), Yarbrough
patent: 3425264 (1969-02-01), Frei
patent: 3842659 (1974-10-01), Bacroix
patent: 3975943 (1976-08-01), Brachet
patent: 3981701 (1976-09-01), Andersen et al.
patent: 4135384 (1979-01-01), Berwell, Jr. et al.

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