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744 |
Still and Reactor Operators | Workers 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. |
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