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DOT Code: 571.685-010

Industry: mine & quarry

Tends furnace that heats perlite to expel volatile material and reduce ore to powder (calcine) for use as insulating material, plaster, and concrete aggregate: Dumps pulverized perlite onto shaker screen that sifts perlite to specified fineness. Starts conveyor that feeds screened material into furnace. Shovels calcined perlite into sack or fills sack by holding it under discharge hopper.

GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77