Assertion: helium | /r/HasProperty | documented permeation constants
Facets:
value: through synthetic materials
type: OTHER
value: through glasses
type: MANNER
value: through inert gases such as helium
type: MANNER
value: through ceramics
type: LOCATION
Source sentences:
text: While helium has documented permeation constants (thus a calculable permeation rate) through glasses, ceramics, and synthetic materials, inert gases such as helium will not permeate most bulk metals.