Porosity measurement

Measuring and testing – With fluid pressure – Porosity or permeability

Patent

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Details

73159, G01N 1500

Patent

active

041988531

ABSTRACT:
The present invention provides a method and apparatus for evaluating the porosity of a sheet material at a given value of gas flow or pressure drop (PD), with account being taken of the following relationship between the parameters of flow and PD:

REFERENCES:
patent: 2755660 (1956-07-01), Kammermeyer et al.
patent: 2861451 (1958-11-01), Emmons

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