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U.S. Department of Labor
Industri: Government; Labor
Number of terms: 77176
Number of blossaries: 0
Company Profile:
A professional who performs any combination of following duties in production of vaccines or toxoids. Respnsibilities include: * Adds chemical solutions, disease virus, or bacteria to and removes culture fluids from glass vessels, using pump. * Connects pumping equipment to storage, filtration, fermentation, and refrigeration containers to transfer and refrigerate chemical ingredients or to flush containers. * Conveys chemical ingredients, disease bacteria, and disease viruses in drums, containers, jars, or vials to and from storage or refrigeration rooms, using handtruck. * Carries samples of chemical broth, vaccine, or toxoid to quality control unit. * Tends sterilizers, oven, and autoclave that sterilize glassware, instruments, and portable equipment. * Washes designated equipment by hand, using brushes, rags, and detergent. * Thaws frozen ingredients used in developing vaccines or toxoids, using thawing equipment.
Industry:Professional careers
A professional who tends equipment that filters acid liquor from slurry and dehydrates residual materials for further processing. Respnsibilities include: * Opens feed valves and starts rotary drum that filters liquor from slurry. * Turns valves to transfer residue to dehydration unit. * Adjusts controls to regulate temperature, pressure, and speed of material flow as specified to dry residue. * Collects samples of acid liquor and residual materials for laboratory analysis. * May be designated according to material processed as phthalic-acid purifier.
Industry:Professional careers
A professional who tends steam-jacketed kettles, mixing tanks, filter press, string filter, and related equipment to process ammonia solution and aluminum sulfate into aluminum hydroxide. Respnsibilities include: * Meters water into steam-jacketed kettle and sets thermostat at specified temperature. * Dumps preweighed bags of aluminum sulfate into kettle, and starts agitator to dissolve ingredient. * Meters specified amounts of hot water and ammonia into mixing tank and starts agitator. * Pumps aluminum sulfate solution through filter press into heated agitator tank to remove insoluble materials. * Pumps ammonia solution to tank with aluminum sulfate solution. * Ladles sample of mixture, adds test solution, and observes color reaction to determine degree of precipitation. * Adds specified ingredients to mixing tank to complete precipitation, according to results of test. * Pumps slurry through string filter to separate aluminum hydroxide from mixture. * May replace filtering media and repair equipment, using handtools.
Industry:Professional careers
A professional who tends machine that fills ampoules with metered doses of liquid drug products. Respnsibilities include: * Starts machine and dumps empty ampoules into hopper or places them on rotating table of machine that automatically positions them for filling. * Seals ampoules. * May regulate gas flame in ampoule-sealing unit. * May inspect, count, and pack ampoules in cartons for shipment. * May place sealed ampoules in wire basket and immerse in dye bath for leak test. * May tend machine that steam-washes ampoules preparatory to filling.
Industry:Professional careers
A professional who tends machine that fills ampoules with metered doses of liquid drug products. Respnsibilities include: * Starts machine and dumps empty ampoules into hopper or places them on rotating table of machine that automatically positions them for filling. * Seals ampoules. * May regulate gas flame in ampoule-sealing unit. * May inspect, count, and pack ampoules in cartons for shipment. * May place sealed ampoules in wire basket and immerse in dye bath for leak test. * May tend machine that steam-washes ampoules preparatory to filling.
Industry:Professional careers
A professional who tends machine that steam-washes ampoules, preparatory to filling. Respnsibilities include: * Places ampoules on spokes of rotary table of washing machine. * Depresses pedal to move ampoules through steam bath. * Removes washed ampoules and places them in holes of perforated tray. * Discards chipped or cracked ampoules. * May load ampoules into drying ovens and remove after specified time.
Industry:Professional careers
A professional who tends equipment that washes and squeezes devulcanized scrap rubber to remove caustic materials used in devulcanization process. Respnsibilities include: * Starts pumps or opens chute to feed devulcanized rubber onto vibrating screen conveyor. * Turns valves to adjust spray that washes rubber. * Observes screen that filters rubber residue from wash water to detect clogging of holes. * Opens hopper chute to feed washed material into screw press or between rollers that squeeze out water. * Feels pressed material to estimate remaining moisture content and turns handwheels to adjust squeezing action of screw press or dewatering rollers.
Industry:Professional careers
A professional who tends pumps to maintain brine wells at specified levels to ensure adequate salt supply for chemical processes. Respnsibilities include: * Turns valves and monitors gauges and water-pressure recorders to maintain level and brine strength of wells within prescribed limits, and to reverse flow of flush wells as directed. * Determines specific gravity of salt water in wells, using hydrometer. * Determines iodine content of brine, using standard titration test. * Monitors automatic pump operation and inspects water supply system to detect broken or frozen lines, stoppages, and leaks. * Records brine strength and pressure in system for operating log.
Industry:Professional careers
A professional who tends pumps to maintain brine wells at specified levels to ensure adequate salt supply for chemical processes. Respnsibilities include: * Turns valves and monitors gauges and water-pressure recorders to maintain level and brine strength of wells within prescribed limits, and to reverse flow of flush wells as directed. * Determines specific gravity of salt water in wells, using hydrometer. * Determines iodine content of brine, using standard titration test. * Monitors automatic pump operation and inspects water supply system to detect broken or frozen lines, stoppages, and leaks. * Records brine strength and pressure in system for operating log.
Industry:Professional careers
A professional who tends machine that automatically forms ore mixture or chemical compounds into briquettes. Respnsibilities include: * Shovels mix into feed hopper and pokes out feed chutes, using rod, to prevent jamming of material as it flows to briquetting rollers and to rotary drier. * Turns valves to maintain vacuum pressure in drier within specified limits. * Pushes down sealing ring to prevent loss of vacuum and transfers briquettes to drums for shipment or storage. * Weighs drums, using platform scale, to facilitate compilation of shipping data. * Monitors potentiometer on drier and reports unusual fluctuations to maintenance or supervisory personnel. * Examines drier feedlines for condition, to detect potential air leaks and loss of vacuum.
Industry:Professional careers
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