Information Circular1951 |
Vanlige uttrykk og setninger
Air Pollution Air Pollution Control Alabama alloys Approval Arizona Arkansas Atlantic baghouse blast breaker Bureau of Mines cars cement charged circuit breakers coal bed coal mines Coal-mine inspector Colorado concrete cubic foot cupola drill dust electric employees engineer equipment explosive Figure fly ash foundries FUEL OIL fume furnace gases haulage hour Idaho inches industry inspection installed main entries man-hours man-shifts per day manganese Maryland mask mechanized units melting metal metallurgical micron mobile loading unit Montana nonferrous North Carolina North Dakota Ohio Oklahoma operation Oregon oxide panel entries particulate matter Pennsylvania percent pillar extraction pillar mining pillars are extracted plant portland cement pounds pozzolans raw coal recovery respirators Rhode Island roof bolting rooms safety SALES OF FUEL shaft shale slag South Central stack steel TABLE temperature Tennessee tests thick Thousands of barrels timbering Total United truck underground Utah West Virginia Wyoming zinc zinc oxide
Populære avsnitt
Side 31 - A person shall not discharge into the atmosphere from any single source of emission whatsoever any air contaminant for a period or periods aggregating more than three minutes in any one hour which is : (a) As dark or darker in shade as that designated as No. 2 on the Ringelmann Chart, as published by the United States Bureau of Mines, or (b) Of such opacity as to obscure an observer's view to a degree equal to or greater than does smoke described in subsection (a) of this section.
Side 26 - ... specific process which process may cause any discharge into the atmosphere. Solid fuels charged will be considered as part of the process weight, but liquid and gaseous fuels and combustion air will not. "The Process weight per hour...
Side 31 - A person shall not discharge from any source whatsoever such quantities of air contaminants or other material which cause injury, detriment, nuisance or annoyance to any considerable number of persons or to the public or which endanger the comfort, repose, health or safety of any such persons or the public or which cause or have a natural tendency to cause injury or damage to business or property.
Side 8 - ... occupation. Part-time or unpaid experience will be credited on the basis of time actually spent in appropriate activities. Applicants wishing to receive credit for such experience must indicate clearly the nature of their duties and responsibilities in each position and the number of hours a week spent in such employment.
Side 26 - Process Weight" is the total weight of all materials introduced into any specific process which process may cause any discharge into the atmosphere. Solid fuels charged will be considered as part of the process weight, but liquid and gaseous fuels and combustion air will not. ''The Process Weight Per...
Side 5 - The Secretary of the Interior, acting through the United States Bureau of Mines, may, in his discretion, create and establish an advisory committee composed of not more than six members to exercise consultative functions, when required by the Secretary, in connection with the administration of this Act.
Side 16 - The Committee members while engaged in the performance of their duties shall be paid by the Union, but shall be deemed to be acting within the scope of their employment in the mine within the meaning of the Workmen's...
Side 28 - Rule 21, if the applicant does not show that every article, machine, equipment or other contrivance, the use of which may cause the issuance of air contaminants, or the use of which may eliminate or reduce or control the issuance of air contaminants...