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Record Nr. |
UNINA9910704556503321 |
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Titolo |
Procedure for permitting the use of belt air to ventilate working sections of underground coal mines |
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Pubbl/distr/stampa |
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[Arlington, Va.] : , : [U.S. Department of Labor, Mine Safety and Health Adminstration], , 2012 |
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Descrizione fisica |
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1 online resource (2 pages) |
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Collana |
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Procedure instruction letter ; ; no. I12-V-14 |
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Soggetti |
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Mine ventilation - United States - Equipment and supplies |
Mine ventilation - Safety regulations - United States |
Mine atmospheres - United States - Safety measures |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from subject line (viewed on July 1, 2013). |
"Effective Date: 05/07/2012, Expiration Date: 03/31/2014." |
"Reissue of I10-V-06." |
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