In these regulations "the Act" means the Machinery and Occupational Safety Act, 1983 (Act 6 of 1983), and any expression to which a meaning has been assigned in the Act shall have the meaning so assigned and, unless the context indicates otherwise—

"Boatswain’s chair"

means a suspended platform seat intended for supporting one person in an elevated position;

"building work"

means building work as defined in the General Administrative Regulations published under Government Notice R206 of 5 October 1984;

"confined space"

means an enclosed, restricted, or limited space in which, because of its construction, location or contents, or any work activity carried on therein, a hazardous substance may accumulate or an oxygen-deficient atmosphere may occur, and includes any chamber, tunnel, pipe, pit, sewer, container, valve, pump, sump, or similar construction, equipment, machinery or object in which a dangerous liquid or dangerous concentration of gas, vapour, dust or fumes may be present;

"fire resistance"

means the minimum period for which a building element or component will comply with the requirements for stability, integrity, and insulation when tested in accordance with SABS 0177: Part II;

"flammable liquid"

means any liquid which produces a vapour that forms an explosive mixture with air, and includes any liquid with a closed-cup flash-point of less than 55 degrees C;

"high-risk substance"

means a substance listed in the Schedule to the General Administrative Regulations published under Government Notice R. 2206 of 5 October 1984, as amended from time to time;

"putlog scaffold"

means a scaffold supported by a single row of standards and the structure in connection with which it is being used;

"SABS 0177: Part II"

means the South African Bureau of Standards’ code of practice entitled Fire Resistance Test For Building Elements, SABS 0177: Part II – 1981.

"scaffold"

means any temporary elevated platform and supporting structure used for supporting workmen or materials or both;

"Suspended scaffold"

means a working platform suspended from supports by means of one or more separate suspensions from each support;

"trestle scaffold"

means a working platform supported on trestles, stepladders, tripods and the like.