ASTM D381 Standard Test Method for Gum Content in Fuels by Jet Evaporation -- eLearning Course

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Price: $174
About the Course

This course covers the determination of the existent gum content of aviation fuels, and the gum content of motor gasolines or other volatile distillates in their finished form (including those containing alcohol and ether type oxygenates and deposit control additives) at the time of test.

The course takes approximately 1 hour to complete and includes instructional video content, interactive knowledge checks, and a self-grading quiz. Downloadable resources include a pdf of the standard.

Learning Outcomes

By the end of this course, you will be able to:

  • Identify apparatus, materials, and related components used for determination of existent gum content including the evaporation bath.
  • Recognize procedure for assembly of air-jet and steam-jet apparatus.
  • Recall procedure for calibration and standardization of air flow and steam flow including back pressure and flow rate requirements.
  • Recall procedure for determination of existent gum content including cleaning procedure.
  • Identify calculation procedure for existent gum content of aviation fuels, solvent washed gum content of motor gasoline, and unwashed gum content of motor gasoline.
  • Recognize reporting requirements outlined in ASTM D381.


Anyone who runs the D381 test method or who needs an understanding of the test method and how it is properly run.

Certificate and CEUs

CEUs: .1 or 1 PDH

Certificate: A certificate is available upon successful completion of the course and an 80% or higher score on the exam.

ASTM Standards Referenced


Related Products

This training course is part of the following eLearning programs:

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