Tester

Test and analyze samples of crude oil and petroleum products.
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Quick Stats


Salary Range
$30,000 – $100,000

Data from U.S. Department of Labor


What do Testers do?

Tests and analyzes samples of crude oil and petroleum products during processing stages, using laboratory apparatus, testing equipment, and following standard test procedures to determine physical and chemical properties and ensure products meet quality control standards: Tests samples of crude and blended oils, gases, asphalts, and pressure distillates to determine characteristics, such as boiling, vapor, freeze, condensation, flash and aniline points, viscosity, specific gravity, penetration, doctor solution, distillation, and corrosion, using test and laboratory equipment, such as hydrometers, fractionators, distillation apparatus, and analytical scales. Analyzes content of products to determine presence of gases, such as propane, iso-butane, butane, iso-pentane, and ethene. Determines hydrocarbon composition of gasolines, blending stocks and gases, using fractional distillation equipment, gas chromatography, and mass spectrometer. Operates fractionation column to separate crude oil into oils with different boiling points to determine their properties. Analyzes composition of products to determine quantitative presence of gum, sulfur, aromatics, olefins, water, and sediment. Compares color of liquid product with charts to determine processing factors measurable by color. May test air and water samples to detect industrial pollutants.


Should I be a Tester?

You should have an associate's degree or higher and share these traits:
  • Detail Oriented: You pay close attention to all the little details.
  • Reliable: You can always be counted on to do a good job.
  • Trustworthy: You are known for your personal integrity and honesty.

  • Also known as: Chalk Tester, Crude Tester, Gasoline Tester, Gas Tester, Oil Field Tester, Oil Tester, Ore Tester

    How to become a Tester

    We recommend at least an Associate's degree. Check out these schools offering Tester-related education!
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