Reissue of I10-V-05, measuring methane levels at underground coal mines using belt air to ventilate working sections
Series: Procedure instruction letter -- no. I12-V-16
Publisher: U.S. Department of Labor, Mine Safety and Health Adminstration
Published: 2012
Place of publication: Arlington, Virginia]
Language: eng
Subjects: Mine gases; Measurement; Equipment and supplies; Safety measures; Methane; Mine atmospheres; Safety regulations
Other titles: Measuring methane levels at underground coal mines using belt air to ventilate working sections
Notes: Title from subject line (viewed on July 16, 2013).

"Effective Date: 05/22/2012, Expiration Date: 03/31/2014."