Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 3 - UNDERGROUND METAL/NONMETAL MINES › Subpart T - Safety Standards for Methane in Metal and Nonmetal Mines › Section 57.22002 - Definitions

Current through July 13, 2024
The following definitions apply in this subpart:
Abandoned areas. Areas in which work has been completed, no
					 further work is planned, and travel is not permitted.
Auxiliary fan. A fan used to deliver air to a working place
					 off the main airstream; generally used with ventilation tubing.
Blowout. A sudden, violent, release of gas or liquid due to
					 reservoir pressure in a petroleum mine.
Booster fan. A fan installed in the main airstream or a
					 split of the main airstream to increase airflow through a section of a
					 mine.
Combustible material. A material that, in the form in which
					 it is used and under the conditions anticipated, will ignite, burn, support
					 combustion or release flammable vapors when subjected to fire or heat. Wood,
					 paper, rubber, and plastics are examples of combustibles.
Competent person. A person designated by the mine operator
					 who has sufficient experience and training to perform the assigned task.
Explosive material. Explosives, blasting agents, and
					 detonators. Explosives are substances classified as explosives by the
					 Department of Transportation in SS 173.53, 173.88, and 173.100 of Title 49 of
					 the Code of Federal Regulations (1986 Edition). Blasting agents are substances
					 classified as blasting agents by the Department of Transportation in S
					 173.114(a) of Title 49 of the Code of Federal Regulations (1986 Edition).
					 Detonators are devices containing a detonating charge used to initiate
					 explosives. Examples of detonators are blasting caps, electric or non-electric
					 instantaneous or delay blasting caps and delay connectors. [A copy of Title 49
					 is available at any Metal and Nonmetal Mine Safety and Health District Office
					 of the Mine Safety and Health Administration].
Geological area. An area characterized by the presence of
					 the same ore bodies, the same strati-graphic sequence of beds, or the same
					 ore-bearing geological formation.
Mine atmosphere. Any point at least 12 inches away from the
					 back, face, rib, and floor in any mine; and additionally, in a Category IV
					 mine, at least 3 feet laterally away from the collar of a borehole which
					 releases gas into the mine.
Noncombustible material. A material that, in the form in
					 which it is used and under the conditions anticipated, will not ignite, burn,
					 support combustion, or release flammable vapors when subjected to fire or heat.
					 Concrete, masonry block, brick, and steel are examples of noncombustible
					 materials.
Outburst. The sudden, violent release of solids and
					 high-pressure occluded gases, including methane, in a domal salt mine.
					 Substantial construction. Construction of such strength, material, and
					 workmanship that the object will withstand air blasts, blasting shock, ground
					 movement, pressure differentials, wear, and usage which may be expected to
					 occur in the mining environment.
Mine Categorization