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Number  Name Description (tasks and duties) Unit Groups 

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.

750

Spinners, Weavers, Knitters, Dyers and Related Workers, Specialisation UnknownWorkers in this unit group may perform any (but not all) of the occupational activities described in minor group 7-5.

751

Fibre PreparersWorkers in this unit group prepare wool, cotton, flax, jute, hemp and other natural textile fibres for spinning and winding. Their functions include: grading and classifying natural textile fibres; washing wool fibres; tending machines which mix textile fibres into uniform blends; operating machines which clean and fluff textile fibres, transform them into sliver, comb them into sliver for first drawing, combine slivers into sliver lap or sliver laps into ribbon lap,combine several slivers into one attenuated strand of regular quality and weight, or transform sliver into roving; performing related fibre-preparing tasks.

752

Spinners and WindersWorkers in this unit group spin, double, twist and wind thread and yarn from natural textile fibres. Their functions include: operating machines to spin thread and yarn from roving, wind two or more threads onto a bobbin, twist two or more strands of yarn or thread into a single heavier and stronger strand, or wind yarn or thread from one package to another; performing related tasks.

753

Weaving-and Knitting-Machine Setters and Pattern-Card PreparersWorkers in this unit group set and maintain weaving and knitting machines and prepare pattern cards for use on Jacquard looms. Their functions include: setting, maintaining and repairing various kinds of looms or knitting machines; reproducing designers' sketches in diagram form for guidance of Jacquard card cutters and weavers; operating machines which punch holes in Jacquard cards; performing related tasks.

754

Weavers and Related WorkersWorkers in this unit group weave materials on hand or machine looms and perform related tasks. Their functions include: operating machines which wind yarn or thread onto weaver's beams; drawing warp threads into loom by hand or machine; weaving plain or figured cloth, tapestry, lace, carpet or other fabrics on hand or machine looms; examining and repairing fabrics; performing related tasks.

755

KnittersWorkers in this unit group knit garments, fabrics and other articles by hand or machine. Their functions include: operating one or more standard or specialised power-driven knitting machines to knit garments, fabrics, hosiery or other articles; knitting garments and other articles on handoperated machines or by hand; performing related tasks.

756

Bleachers, Dyers and Textile Product FinishersWorkers in this unit group bleach, dye and otherwise treat fibres, yarn, cloth and other textile products. Their functions include: treating textile products to make them lighter in colour or to give them specific colour; washing textile products to remove impurities, excess chemicals or natural gum; tending equipment to shrink textile materials or strengthen the weave by interlocking the fibres; waterproofing textiles with chemicals; treating silk to give it body and weight; operating machines which press, stretch, or impart lustre, waterproof or other type of finish to textiles; performing related tasks.

757

Rope MakersWorkers in this unit group make ropes from natural and artificial fibres. Their functions include: twisting or braiding together strands of fibre to make cords of varying thickness and length.

759

Spinners, Weavers, Knitters, Dyers and Related Workers Not Elsewhere ClassifiedWorkers in this unit group perform textile fabrics manufacturing tasks not classified elsewhere. Their functions include: making braid by hand or machine; crocheting by hand or machine; making nets by hand; mixing and purifying fur fibres by machine; operating machines which make hat forms from fur fibres or wool batts; performing related tasks.

761

Tanners and FellmongersWorkers in this unit group make leather from hides and skins. Their functions include: sorting and grading hides and skins; removing residual wool from sheepskins; removing flesh and hair from hides by hand or machine: operating machine to split hides edgeways; treating hides to convert them into leather; dressing and applying dyes and stains to leather; performing related tasks.

762

Pelt DressersWorkers in this unit group prepare fur- or wool-bearing pelts for making garments and other products. Their functions include: sorting pelts before or after dressing; removing flesh and fat from pelts before curing; removing long, coarse hair form fur pelts and trimming underlying hair to even length; stretching and smoothing dressed pelts; performing related tasks.

771

Grain Millers and Related WorkersWorkers in this unit group crush, grind, blend and otherwise process grains, spices and related foodstuffs for human or animal consumption. Their functions include: operating machinery for the production of flour, meal and animal feed and for processing rice; grinding spices in a mill; performing related tasks.

772

Sugar Processors and RefinersWorkers in this unit group operate equipment to process sugar-cane and beet and make refined sugar. Their functions include: operating sugar-cane crushing equipment; operating batteries of diffusers to extract sugar liquor from beet; controlling tanks in which sugar liquor is purified by carbonation process; tending tanks in which sugar crystals are produced from hot sugar liquor; operating and controlling series of machines which refine beet or cane sugar by a continuous process; performing related tasks such as extracting and refining sugar juices from maple, palm and other vegetable sources.

773

Butchers and Meat PreparersWorkers in this unit group slaughter animals, cut and dress meat and make sausages and other meat products. Their functions include: slaughtering animals; flaying and trimming carcasses; cutting and dressing meat for sale or further processing; preparing ingredients for sausages and operating sausage-making machines; performing related tasks.

774

Food PreserversWorkers in this unit group cook, smoke, dry, freeze or dehydrate foodstuffs for canning or other kinds of preservation. Their functions include: cooking meat, fish, fruit, vegetables or other foods in large quantities; sterilising foodstuffs prior to canning or bottling; freezing or dehydrating fruit, vegetables or other foods; curing foodstuffs by salting or smoking; performing related tasks.

775

Dairy Product ProcessorsWorkers in this unit group process milk and cream and make dairy products. Their functions include: operating or tending equipment to pasteurise milk; performing one or more tasks in making butter or cheese or tending machinery to make them in large quantities; making ice cream; performing related tasks.
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