Regulation 348(1) Where required by an inspector, the manager of a mine shall ensure that in the mine, suitable fusible plugs as well as thermometers or pyrometers which have indications which can be clearly read, are fitted(a) close to the outlet valves or the discharge pipes from air cylinders; and(b) on the outlet pipes of intercoolers of air compressors when operating in combination with a receiver.(2) The engineering manager of a mine shall(a) ensure that the highest temperatures allowed in the mine are indicated by red marks on a scale on the thermometer or the pyrometer; and(b) make the attendant in charge of outlet valves or discharge or outlet pipes responsible for(i) ensuring that the temperature limits of the mine are not exceeded; and(ii) recording the thermometer or pyrometer readings at least once during each shift.