A mass spectrometer method for determining helium in the parts-per-million to 10-percent range

Author:	Holland, Philip W.
Year:	1991
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9359
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9359
Subjects:	Mass spectrometry
	Helium--Measurement
	Mine gases--Analysis
Links:	https://hdl.handle.net/2027/mdp.39015078479949
	no.9359 1991