Ventilation
11 Ventilation
The ventilation of mines, including—
standards of purity, temperature, and humidity of the air; the quantity of air which shall be made to circulate in the mine or the airways; methods by which the air shall be tested as to its adequacy in quantity, purity, temperature, humidity, and efficiency of circulation;
recording the state of ventilation in all parts of the mine; showing upon the plans the position of all airdoors and ventilating devices and appliances, and the direction of the air currents;
the conditions under which disused portions of the mine may or shall be shut off from the ventilation system, and when and in what manner they shall be ventilated;
the conditions under which the use of mechanical appliances to assist ventilation shall be compulsory;
the use of compressed air;
the conditions under which tailings from cyanide or other chemical or metallurgical processes may be used for the filling of stopes;
the prevention of the escape of deleterious gases and fumes from any chemical or metallurgical process.
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