Using sulfur hexafluoride as a gaseous tracer to study ventilation systems in mines

Author:	Thimons, Edward D.
Additional Authors:	Kissell, Fred N., Bielicki, Richard J.,
Year:	1974
Document Type:	BMRA
Issuing Agency:	U.S. Bureau of Mines,
SUDOC:	I 28.23:7916
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	7916
Subjects:	Mine ventilation
	Sulfur hexafluoride
Link:	https://hdl.handle.net/2027/mdp.39015078539692