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Arizona Administrative Code

18

Gassy Mines

State Mine Inspector

R11-1-1801Gassy mines operated in accordance with mandatory standards R11-1-1802Classifying mines gassy R11-1-1803Flammable gases detected R11-1-1804Men shall not smoke or carry smoking materials underground R11-1-1805Use of open flames R11-1-1806Welding or cutting underground R11-1-1807Welding or cutting in atmospheres containing more than 1.0% of flammable gases R11-1-1808Ventilation, main fans -- installation R11-1-1809Ventilation, main fans -- operation R11-1-1810Main intake and return air currents R11-1-1811Single shafts used for intake and return R11-1-1812When main fan fails or stops R11-1-1813When there has been a failure of ventilation R11-1-1814When ventilation is not restored in a reasonable time R11-1-1815When main fan or fans have been shut down R11-1-1816Booster fans -- operation R11-1-1817Booster fans -- inspection, equipment R11-1-1818Auxiliary fans -- operation R11-1-1819Auxiliary fans -- inspection R11-1-1820When auxiliary or booster fans slow down or stop R11-1-1821Volume and velocity of the current of air R11-1-1822Quantity of air R11-1-1823Measuring quantity of air at least once a week R11-1-1824Permanently installed battery-charging and transformer stations R11-1-1825Intake air R11-1-1826Changes in ventilation R11-1-1827Flammable gas in excess of 1.0%R11-1-1828Flammable gas in excess of 1.5%R11-1-1829Air containing 0.25% or more of flammable gas R11-1-1830Air inaccessible for inspection shall not be used for ventilation R11-1-1831Abandoned areas shall be sealed or ventilated R11-1-1832Seals shall be of substantial construction R11-1-1833Sampling of atmosphere and measurement of pressure R11-1-1834Crosscuts R11-1-1835Crosscuts closed R11-1-1836Line brattice or other suitable devices R11-1-1837Brattice cloth R11-1-1838Damaged brattices R11-1-1839Crosscuts provided R11-1-1840Entries or rooms shall not be started off entries R11-1-1841Stoppings in crosscuts between intake and return airways R11-1-1842Stoppings airtight R11-1-1843Main ventilation R11-1-1844Air locks shall be ventilated sufficiently R11-1-1845Doors shall be kept closed R11-1-1846Overcasts and undercasts R11-1-1847Preshift examinations R11-1-1848Qualified examiners R11-1-1849Danger signs shall not be removed R11-1-1850Examinations for dangerous conditions R11-1-1851Prompt action to correct dangerous conditions R11-1-1852Diesel-powered equipment R11-1-1853Trolley wires and trolley feeder wires R11-1-1854Only permissible equipment maintained R11-1-1855Only permissible distribution boxes shall be used R11-1-1856Electrical equipment R11-1-1857Illumination R11-1-1858Explosives not designated permissible by Bureau of Mines R11-1-1859Granting approval of unpermissible explosives R11-1-1860Blasts in gassy mines shall be initiated electrically R11-1-1861Boreholes stemmed R11-1-1862Examinations for flammable gas R11-1-1863Shots or rounds shall not be fired R11-1-1864Shots or rounds should be fired by qualified persons