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       CODE: 559.685-190 Buy the DOT:Download/CD-ROM
TITLE(s): WET-END OPERATOR II (plastic-synth.) alternate titles: coagulator
Tends low pressure kettle and auxiliary equipment to coagulate latex particles in thiokol latex
suspension: Opens valves and pumps specified amount of latex suspension and water into kettle.
Starts agitator and turns steam valve to heat solution to specified temperature. Turns valve to
admit acid into solution. Observes processing of solution and coagulation of latex suspension into
uniform crumb size. Examines sample to determine clarity of water and turns valves to stop flow of
acid into solution. Determines pH of batch, using test papers. Adds alkali to batch to neutralize
acid content. Opens outlet valve to transfer suspension to filter or shaker screen for separation of
crumb from liquid. May open water valve to cool solution in kettle prior to transfer. May tend
auxiliary equipment to dewater crumbs. May record data from operations in log.
GOE: 06.04.13 STRENGTH: L GED: R2 M2 L1 SVP: 3 DLU: 77
ONET CROSSWALK: 92962 Separating, Filtering, Clarifying, Precipitating, and Still Machine Operators and Tenders
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