1963-01-01

Hydrogen Permeation Measurements on Vapor Barrier Materials for Cryogenic Insulations 630411

This paper describes a method for measuring hydrogen permeabilities of plastic films and metal foils. The method utilizes a hydrogen mass spectrometer leak detector.
Hydrogen permeability values of several plastic films are presented over a temperature range of 250 to -150 F. The experimental work was done as part of an evaluation of cryogenic insulation systems to be used in space vehicles.

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