No employer shall require or permit a flammable liquid to be used or applied other than in a room, cabinet or other enclosure specially constructed for this purpose of fire-resisting material, or in a place which, owing to its situation or construction or any other feature of circumstance, is of such a nature that -
(a) no fire or explosion hazard is, can or may be created thereat;
(b) any vapour resulting from such use or application is efficiently dispersed and diluted into the atmosphere subject to the provisions of the Air Pollution Prevention Act, 1965 (Act 45 of 1965); and
(c) no other workplace can or may be contaminated by such vapour.