Process for measuring permeability to gas of walls and/or closur

Details Process for measuring permeability to gas of walls and/or closur Process for measuring permeability to gas of walls and/or closur

1976-04-16

1977-09-13

Queisser, Richard C.

Measuring and testing

With fluid pressure

Porosity or permeability

73 493, G01N 1508, G01M 334

Patent

active

040474224

ABSTRACT:
A filled or gas encasing element to be tested is placed in a measuring chamber. The free space between the element and the chamber is filled with filler elements to prevent bursting or inflation of the element. A vacuum is produced in the chamber, and the time required to achieve a predetermined pressure increase therein is measured.

REFERENCES:
patent: 3060724 (1962-10-01), Smith, Jr. et al.
patent: 3352146 (1967-11-01), Lyssy
patent: 3813923 (1974-06-01), Pendleton

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