Gravimetric preparation of primary standard gas mixtures in the parts per trillion range

Author:	Loya, Ernest W.
Additional Authors:	Seitz, Charles A., Emerson, David E.
Year:	1982
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I.28.23:8643
Series:	Report of investigations / United States Department of The Interior, Bureau of Mines ;
Report Number:	8643
Subjects:	Chemistry, Analytic--Quantitative
	Helium--Analysis
	Analytical chemistry--Quantitative
Link:	https://hdl.handle.net/2027/mdp.39015078472019