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DOT Code: 519.665-018

Industry: smelt. & refin.

Tends equipment that recovers cadmium, lead sulfate, and zinc oxide from dust collected in precipitators: Signals Overhead Crane Operator (any industry) 921.663-010 to dump dust into tank from which it is processed through series of sulfating tanks to precipitate and wash lead sulfate and cadmium. Pumps washed liquor to another tank for treatment prior to recovery of zinc oxide. Prepares lime solution and mixes it with zinc oxide liquor. Titrates samples or tests solution for acidity and specific gravity, using hydrometer. Distills cadmium in retort furnace.

GOE: 06.04.10 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77