An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen

Author:	Bibawy, Nabil A.
Additional Authors:	Emerson, David E.
Year:	1990
Document Type:	BMRA
Issuing Agency:	United States Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9312
Subjects:	Nitrogen
	Helium
	Gases
	Mixing
Link:	https://hdl.handle.net/2027/mdp.39015078475251