Procedure for permitting the use of belt air to ventilate working sections of underground coal mines.

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Bibliographic Details
Online Access:	Online Access Online Access
Corporate Author:	United States. Mine Safety and Health Administration (Author)
Format:	Government Document eBook
Language:	English
Published:	[Arlington, Va.] : [U.S. Department of Labor, Mine Safety and Health Administration], 2012.
Series:	Procedure instruction letter ; no. I12-V-14.
Subjects:	Mine ventilation > United States > Equipment and supplies. Mine ventilation > Safety regulations > United States. Mine atmospheres > United States > Safety measures.

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Call Number:	L 38.17/2-3:I 12-V-14
L 38.17/2-3:I 12-V-14	Available