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       CODE: 029.361-018 Buy the DOT:Download/CD-ROM
TITLE(s): LABORATORY ASSISTANT (utilities) alternate titles: laboratory technician
Performs standardized physical and chemical tests on materials and supplies used throughout power
system to ensure compliance with specifications: Tests water used in boilers of steam generating
plant for alkalinity and silica and phosphate content, using colorimeter and spectrophotometer.
Notifies POWER-PLANT OPERATOR (utilities) or AUXILIARY-EQUIPMENT OPERATOR (utilities) of amount of
chemical additives required to bring water to prescribed level of purity. Tests coal to determine
Btu content by burning coal samples in colorimeter. Tests oil used in circuit breakers for
dielectric strength by placing sample of oil in ceramic cup positioned between two electrodes, and
measuring current conducted by oil, using ohmmeter. Ascertains heat resisting qualities of
insulating paints and varnishes by coating pieces of sheet metal with paint and varnish and
subjecting them to high temperatures. May determine viscosity index of lubricating oils, using
viscosimeter. May inspect rubber protective equipment, such as aprons, gloves, and blankets for
flaws.
GOE: 02.04.01 STRENGTH: L GED: R5 M5 L5 SVP: 6 DLU: 77
ONET CROSSWALK: 24505E Environmental Science Technicians
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