Stop mixing or blending machines when specified product qualities are obtained and open valves and start pumps to transfer mixtures.
- 51-8013.00 Power Plant Operators
- 51-9012.00 Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders
- 51-8093.00 Petroleum Pump System Operators, Refinery Operators, and Gaugers
- 51-9192.00 Cleaning, Washing, and Metal Pickling Equipment Operators and Tenders
- 51-6091.00 Extruding and Forming Machine Setters, Operators, and Tenders, Synthetic and Glass Fibers
