Control or operate equipment to control chemical changes or reactions in the processing of industrial or consumer products. Typical equipment used are: reaction kettles, catalytic converters, continuous or batch treating equipment, saturator tanks, electrolytic cells, reactor vessels, recovery units, and fermentation chambers.

Moves controls to adjust feed and flow of liquids and gases through equipment in specified sequence. Sets and adjusts indicating, controlling, or timing devices, such as gauging instruments, thermostat, gas analyzers, or recording calorimeter. Adjusts controls to regulate temperature, pressure, and time of prescribed reaction, according to knowledge of equipment and process. Opens valves or operates pumps to admit or drain specified amounts of materials, impurities, or treating agents to or from equipment. Starts pumps, agitators, reactors, blowers, or automatic feed of materials. Monitors gauges, recording instruments, flowmeters, or product to regulate or maintain specified conditions. Mixes chemicals according to proportion tables or prescribed formulas. Records operational data such as temperature, pressure, ingredients used, processing time, or test results, in operating log. Flushes or cleans equipment, using steamhose or mechanical reamer. Draws samples of product and sends to laboratory for analysis. Tests sample for specific gravity, chemical characteristics, pH level, concentration, or viscosity. Patrols and inspects equipment or unit to detect leaks and malfunctions. Weighs or measures specified amounts of materials. Reads plant specifications to ascertain product, ingredient, and prescribed modifications of plant procedures. Dumps or scoops prescribed solid, granular, or powdered materials into equipment. Adds treating or neutralizing agent to product and pumps product through filter or centrifuge to remove impurities or precipitate product. Directs activities of workers assisting in control or verification of process or in unloading materials. Makes minor repairs and lubricates and maintains equipment, using hand tools. Operates or tends auxiliary equipment, such as heaters, scrubbers, filters, or driers, to prepare or further process materials.

Chemistry -- Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods. Mechanical -- Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Operation and Control -- Controlling operations of equipment or systems. Science -- Using scientific rules and methods to solve problems. Quality Control Analysis -- Conducting tests and inspections of products, services, or processes to evaluate quality or performance. Operation Monitoring -- Watching gauges, dials, or other indicators to make sure a machine is working properly. Reading Comprehension -- Understanding written sentences and paragraphs in work related documents. Mathematics -- Using mathematics to solve problems. Management of Personnel Resources -- Motivating, developing, and directing people as they work, identifying the best people for the job. Equipment Maintenance -- Performing routine maintenance on equipment and determining when and what kind of maintenance is needed. Troubleshooting -- Determining causes of operating errors and deciding what to do about it. Equipment Selection -- Determining the kind of tools and equipment needed to do a job.

Information Ordering -- The ability to arrange things or actions in a certain order or pattern according to a specific rule or set of rules (e.g., patterns of numbers, letters, words, pictures, mathematical operations). Written Comprehension -- The ability to read and understand information and ideas presented in writing. Near Vision -- The ability to see details at close range (within a few feet of the observer). Control Precision -- The ability to quickly and repeatedly adjust the controls of a machine or a vehicle to exact positions. Problem Sensitivity -- The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem. Oral Expression -- The ability to communicate information and ideas in speaking so others will understand. Selective Attention -- The ability to concentrate on a task over a period of time without being distracted. Speech Clarity -- The ability to speak clearly so others can understand you. Finger Dexterity -- The ability to make precisely coordinated movements of the fingers of one or both hands to grasp, manipulate, or assemble very small objects. Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects.

Monitor Processes, Materials, or Surroundings -- Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems. Controlling Machines and Processes -- Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles). Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Identifying Objects, Actions, and Events -- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Documenting/Recording Information -- Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form. Updating and Using Relevant Knowledge -- Keeping up-to-date technically and applying new knowledge to your job. Estimating the Quantifiable Characteristics of Products, Events, or Information -- Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.