Effective - 28 Aug 1959, 2 histories
293.120. Air safety requirements. — Air in which men work or travel in mines shall be improved when:
(1) It contains less than nineteen and five-tenths percent oxygen;
(2) It contains more than one-hundredth percent carbon monoxide;
(3) It contains more than five-tenths percent carbon dioxide;
(4) It contains more than one percent methane; or
(5) Is contaminated with dust or with noxious or poisonous gases in excess of accepted limits as established by the director of the division of mine inspection.
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(L. 1959 S.B. 188 § 13)
Structure Missouri Revised Statutes
Title XVIII - Labor and Industrial Relations
Chapter 293 - Mining Regulations
Section 293.010 - Definitions.
Section 293.020 - Applicability of law.
Section 293.040 - Maps of mine, when made, contents.
Section 293.050 - Hours of work — safety rules — posting of law and rules.
Section 293.070 - Limits on visitors.
Section 293.080 - Mine owner to report, when.
Section 293.090 - Director's report, contents.
Section 293.100 - Washrooms, dressing rooms, first aid equipment.
Section 293.110 - Working places, shafts — drinking devices.
Section 293.120 - Air safety requirements.
Section 293.130 - Mine railroad equipment and operating requirements — gasoline engines limited.
Section 293.140 - Escapement shafts, how equipped.
Section 293.150 - Electrical wiring and equipment requirements.
Section 293.160 - Electrical equipment requirements.
Section 293.170 - Fire safety requirements.
Section 293.180 - Protective clothing and devices to be worn.
Section 293.190 - Accident reports, investigation, powers of inspector — failure to report, penalty.
Section 293.200 - Shaft coal mine outlets and escapement shaft requirements — penalty.
Section 293.210 - Shaft coal mines, ventilation requirements.
Section 293.220 - Daily examination of coal mines generating explosive gas, record.
Section 293.230 - Experienced coal miner to handle explosives or gases.
Section 293.240 - Blasting cartridge requirements.
Section 293.250 - Violation of coal mining safety laws, penalty.
Section 293.260 - Explosive strongbox required — employment of shot firers, duties — penalty.
Section 293.270 - Storage of over daily supply of explosives in mine prohibited.
Section 293.280 - Location of explosive storage magazines, ventilation.
Section 293.290 - Detonators or caps not kept in magazine in coal mine.
Section 293.300 - Explosives not to be prepared in storage magazine.
Section 293.310 - Violations of law as to explosive storage, penalty.
Section 293.320 - Bore holes required, when, where.
Section 293.330 - Signaling and hoisting devices in shaft, safety requirements.
Section 293.350 - Hoisting equipment, operating requirements (coal mines).
Section 293.360 - Inspection of hoisting equipment, records — penalty (coal mines).
Section 293.380 - Coal mine operated, how — abandoned workrooms sealed, penalty.
Section 293.390 - Standards for roof control — supply of materials required (coal mines).
Section 293.400 - Coal dust controls.
Section 293.410 - Welding and cutting operations, ventilation, rock-dusting.
Section 293.420 - Weighing regulations where coal miners paid by weight.
Section 293.440 - Weighing laws apply to "loaders", when.
Section 293.450 - Coal miners to be brought to surface for lunch period of hour, penalty.
Section 293.460 - Coal miner to prove qualifications before working alone — penalty.
Section 293.470 - Division to close coal mine, when — penalty.
Section 293.480 - Coal miners paid wages, when — penalty.
Section 293.490 - Coal miner's lien for wages.
Section 293.500 - Applicability of sections 293.200 to 293.490.
Section 293.510 - Dangerous mines to be closed by state, expenses.
Section 293.520 - Experience required for miners, except trainees.
Section 293.530 - Notice of opening and abandonment of mines — abandoned mines to be sealed.
Section 293.540 - Outlets may be required, when — location of shafts.
Section 293.550 - Ventilation of mines.
Section 293.560 - State inspections for health safety — procedure when ventilation inadequate.
Section 293.570 - State inspection for dust — waterlines to be installed, when, sprinkling.
Section 293.580 - Explosives, storage, handling and use.
Section 293.590 - Hoisting equipment and operating regulations.
Section 293.600 - Director may require crossheads in shaft sinking operations.
Section 293.610 - Applicability of sections 293.510 to 293.600.
Section 293.620 - Caves, inspection, to provide map — inspection fees.
Section 293.630 - Rules and regulations.
Section 293.640 - Inspectors and employees — appointment, salaries.
Section 293.650 - Expenses of director and inspectors.
Section 293.660 - Inspection of mines, when — rights and duties of inspectors — reports.
Section 293.670 - Complaints as to dangerous conditions, procedure.
Section 293.680 - Judicial review of orders of director — effect of filing on order, procedure.