Operates one or more stills in which batches of crude liquid chemicals (other than petroleum) are treated to separate them into, or to refine, their chemical constituents.
Operates one or more stills in which continuous feed of crude liquid chemical (other than petroleum) is separated into its chemical constituents or in which those constituents are refined.
Operates equipment (other than that used for treating petroleum) which performs a sequence of operations in a chemical reaction process: Workers who operate equipment performing only one operation in a reactor-converter process are classified according to the type of equipment operated.
Minds and services boiling pans containing brine, and draws or scoops out coarse and fine salt which is precipitated. May also do light and maintain fire under salt pans.
This group includes still and reactor operators not elsewhere classified, for example those who specialise in refining crude wood turpentine; distilling resin into gum turpentine; distilling alcoholic beverages from prepares mixtures; distilling vegetable products with the aid of steam to obtain perfumes and aromatic substances of an oily nature; or assisting in operation of stills.
