OHS Code

Published Date: July 01, 2009
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Part 36 Mining

Section 711 Ventilation system

(1) An employer must ensure that a mine has a mechanical ventilation system, certified by a professional engineer, that

(a) dilutes, displaces, eliminates or otherwise renders harmless all noxious or flammable gases and harmful substances,

(b) keeps work areas and accessible roads fit for workers to work or travel in,

(c) ensures that the air contains at least 19.5 percent oxygen by volume and not more than 0.5 percent carbon dioxide by volume, and

(d) ensure that a minimum volume of 1.9 cubic metres per second of air passes active working headings.

(2) An employer must develop safe operating procedures for the ventilation system that are certified by a professional engineer.

(3) An employer must ensure that

(a) the ventilation system is designed to prevent the raising of dust, and

(b) compressed air is not used for ventilation.