Job Description:

• 1) 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.

• 2) Starts agitator and turns steam valve to heat solution to specified temperature.

• 3) Turns valve to admit acid into solution.

• 4) Observes processing of solution and coagulation of latex suspension into uniform crumb size.

• 5) Examines sample to determine clarity of water and turns valves to stop flow of acid into solution.

• 6) Determines pH of batch, using test papers.

• 7) Adds alkali to batch to neutralize acid content.

• 8) Opens outlet valve to transfer suspension to filter or shaker screen for separation of crumb from liquid.

• 9) May open water valve to cool solution in kettle prior to transfer.

• 10) May tend auxiliary equipment to dewater crumbs.

• 11) May record data from operations in log.