Method and apparatus

Details Method and apparatus Method and apparatus

G - Physics

01

N

G01N 13/00 (2006.01) F17D 3/12 (2006.01) G01N 15/08 (2006.01)

Patent

CA 2264346

A method for the measurement of the permeability to water of a pervious sheet material (16) comprising the steps of placing a nozzle means (5) against one surface of said sheet material (16) and flowing water through the nozzle means (5), characterized by maintaining a constant water flow through the nozzle means (5) and measuring the pressure of the constant water flow in the nozzle means (5). Optionally, a gas, such as air, is introduced into the water flow. An apparatus for performing the method, comprising means (1) for supplying a constant water flow, nozzle means (5) for the constant water flow and means (6) for measuring the pressure of the constant water flow within the nozzle means (5). The apparatus optionally also comprises means (8) for introducing a gas, such as air, into the liquid flow.

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