6 records  
Number  Name Description (tasks and duties) Unit Groups 

741

Crushers, Grinders and MixersWorkers in this unit group crush, grind, mix and blend chemicals and other materials employed in chemical and related processes. Their functions include: reducing solid chemicals and related materials to suitable size for further processing; grinding and pulverising solid chemicals and related materials; mixing or blending solids or liquids used in chemical and related processes; performing related tasks.Operators of crushing machines employed in ore-treating are classified in 7-12.30.

742

Cookers, Roasters and Related Heat TreatersWorkers in this unit group perform cooking, roasting and other heattreating tasks in chemical and related processes. Their functions include: cooking materials to purify, mix or compound them, give them a special property or effect a chemical change in them; heating substances in ovens, kilns or similar devices to dry them, give them a special property or effect a chemical change in them; operating driers for the processing of chemicals and related materials; performing related tasks.

743

Filter and Separator OperatorsWorkers in this unit group operate devices to filter and separate chemicals and related materials. Their functions include: operating filtering devices in which solutions are forced under pressure through a filtering unit; operating filtering devices in which solutions are vacuum-drawn through filtering media fitted to a rotating drum; operating machines which separate substances by centrifugal force; operating chemical, electrical or centrifugal equipment at oil well sites to remove sediment and water from crude oil; performing related tasks.

744

Still and Reactor OperatorsWorkers in this unit group distil and refine chemicals (except petroleum). Their functions include: operating batch or continuous stills in which crude liquid chemicals are treated to separate them into, or to refine, their chemical constituents; operating equipment which performs a sequence of operations in a chemical reaction process; operating evaporating tanks, vacuum pans or similar devices to concentrate solutions and suspensions; operating digesters at wood-felling sites to obtain crude turpentine from wood chips by steam distillation; performing related tasks.

745

Petroleum-Refining WorkersWorkers in this unit group refine, distil and treat petroleum and petroleum products. Their functions include: operating plant to remove sulphur from petrol and petroleum products; operating pumps to circulate petroleum products, water and chemical solutions through refiner; operating stills to distil or refine petroleum products; operating control panels in petroleum refinery; operating equipment to blend petrol with chemicals and other additives; operating filter presses to separate oil of paraffin distillate from paraffin wax; performing related tasks.

749

Chemical Processors and Related Workers Not Elsewhere ClassifiedWorkers in this unit group perform tasks in chemical and related processing not classified elsewhere. Their functions include: treating chemical solutions with bleaching reagents; operating ovens and furnaces to make coke or coal-gas; operating kilns to make charcoal; operating equipment to make synthetic fibres; operating chemical equipment to separate and extract radioactive materials from their ores; performing other tasks in chemical and related processing.
  6 records  

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