Method and apparatus for measuring the permeability of a...

Details Method and apparatus for measuring the permeability of a... Method and apparatus for measuring the permeability of a...

G - Physics

01

N

73/79

G01N 15/08 (2006.01)

Patent

CA 1165141

ABSTRACT OF THE DISCLOSURE Apparatus for measuring the permeability of a material to passage of a fluid includes a pressure regulator for varying the pressure of a supplied fluid, a pair of jaws which may be clamped onto the material specimen, a solenoid valve arranged between the regulator and the jaws, and a collapsible container arranged to be inflated with such fluid as may pass through the clamped specimen during the test. The permeability of the test specimen is determined in terms of the length of time needed for a known volume of such fluid to pass through the specimen, when fluid at a test pressure is applied to a unit area thereof. The apparatus may further include a pressure switch arranged to sense an inflated condition of the container, and a timer to disable the apparatus until sufficient time has been provided to enable the container to return to its deflated condition. In use, such apparatus performs an improved method of measuring the permeability of the material to passage of such fluid.

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