DOT Code: 542.685-014

Industry: chemical

Tends equipment that sublimates (refines by vaporization) crude salicylic acid derived from coal tar: Weighs specified amount of salicylic acid and dumps it onto conveyor leading to sublimation unit. Starts fans that circulate heated air in unit to promote vaporization of salicylic acid. Starts pump to draw salicylic-acid vapor through filters into condenser tanks where salicylic acid recrystallizes. Keeps daily production records.

GOE: 06.04.11 STRENGTH: L GED: R2 M2 L1 SVP: 3 DLU: 77