ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration -- eLearning Course

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Price: $174
About the Course

This covers the procedures for the determination of acidic constituents in petroleum products, lubricants, biodiesel and blends of biodiesel.

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 and their standardization procedures as well as reagents used for the determination of acidic constituents, including the manual titration apparatus and reagents specifc to test methods A and B.
  • Recognize procedures for the preparation, testing, maintenance and storage of electrodes.
  • Recall the steps for standardization of the apparatus
  • Identify requirements for sample preparation.
  • Recall procedures outlined in Test Methods A and B for determination acid number and strong acid number, including both manual and automatic titration methods for Test Method A and sample analysis for Test Method B.
  • Identify calculation and reporting procedures outlined in Test Methods A and B.
  • Recognize quality control checks for Methods A and B.


Anyone who runs the D664 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



All ASTM online courses are available for a 1-year subscription on ASTM's Learning Center for a Single User Only via username/password. Training cannot be shared. For multi-user access and pricing, contact sales here or call 1-877-909-ASTM.

Internet access is required.

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