Regulation 298The manager of a mine shall ensure that(a) suitable goggles, face masks or screens are provided to protect the eyes of operators, and of any other person in the mine who without the use of these protective equipment, is likely to be exposed to danger, and (b) the protective equipment is used when(i) the surfaces of metal, stone, concrete or similar materials are being ground by means of a power driven wheel or disc;(ii) painted or corroded metal surfaces are being chipped or sealed or being mechanically wire-brushed;(iii) metals are being welded or cut by means of electrical, oxy-acetylene or similar processes; or(iv) stone, metal, concrete, slag or similar material is being treated and there is the likelihood of danger to the eyes.