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Thimons, Edward D.

Using sulfur hexafluoride as a gaseous tracer to study ventilation systems in mines Thimons, Edward D.; Bielicki, Richard J.; Kissell, Fred N. - Washington Bureau of mines 1974 - 22 p. - RI 7916 .

Subjects--Topical Terms:
MINERIA
MINING

Subjects--Index Terms: VENTILACION EN LAS MINAS HEXAFLUORURO DE AZUFRE VENTILATION SYSTEMS IN MINES SULFUR HEXAFLUORIDE

Universal Decimal Class. No.: 622