A professional who tends one or more equipment units, such as reaction tanks, bleach tanks, wash tanks, filters, dryers, furnaces, and mills to process pigments, such as titanium, barytes, bentonite, and iron oxide for use in products, such as paint, industrial coating, rubber, plastic, and ink. Respnsibilities include:

• Pushes buttons on control panel and turns valves to start feed of raw materials, such as ore or scrap metal, into processing equipment.
• Monitors gauges, dials, and recorders and adjusts equipment controls to maintain temperatures, pressures, and flow of materials according to specifications.
• May perform chemical tests on product to ensure conformance with specifications, using standard test equipment and procedures.