§ 75.326. Mean entry air velocity.
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/us/cfr/t30/s§ 75.326·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
In exhausting face ventilation systems, the mean entry air velocity shall be at least 60 feet per minute reaching each working face where coal is being cut, mined, drilled for blasting, or loaded, and to any other working places as required in the approved ventilation plan. A lower mean entry air velocity may be approved in the ventilation plan if the lower velocity will maintain methane and respirable dust concentrations in accordance with the applicable levels. Mean entry air velocity shall be determined at or near the inby end of the line curtain, ventilation tubing, or other face ventilation control devices. \[61 FR 9828, Mar. 11, 1996; 61 FR 29288, June 10, 1996\]
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register
- Rules and RegulationsFinal rule
- NoticesNotice of affirmative decisions issued by the Administrators for Coal Mine Safety and Health and Metal and Nonmetal Mine Safety and Health on petitions for modification of the application of mandatory safety standards
- Presidential DocumentsProposed rule; notice of public hearings; notice of close of record
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§ 75.326
Mean entry air velocity.
Fed. Reg.×6
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