OHS Code

Published Date: July 01, 2009
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Part 26 Ventilation Systems

Section 386 Application

This Part applies to work sites if a mechanical ventilation system controls worker exposure to

(a) an airborne contaminant that exceeds or is likely to exceed the occupational exposure limits prescribed in this Code,

(b) a biological contaminant that exceeds or is likely to exceed the occupational exposure limits prescribed in this Code,

(c) potentially hazardous dust, fumes, gas, mist, aerosol, smoke, vapour or other particulate of a kind or quantity that is given off by a process,

(d) an atmosphere that has flammable levels of gases, vapours, liquids or solids, or

(e) an atmosphere that has less than 19.5 percent or more than 23 percent by volume of oxygen.