ASTM D4741 Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered-Plug Viscometer -- eLearning Course

    Price: $174

    About the Series

    ASTM's Petroleum Lab Technician Series enables lab technicians to improve their skills through industry-leading self-guided, online training. The e-learning courses are a key tool to supplement existing internal lab QA/QC programs.

    Each course includes:
    • Self-guided training complete with video demonstrations, checklists, concept presentations, data sheets and glossaries
    • Quiz with automatic grading
    • Certificate upon successful completion of course and passing score on the quiz.

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    All ASTM online courses are available by subscription on ASTM's eLearning Center. The eLearning Center provides advanced features that let you set up learning plans, track learning progress and compliance, and run reports.

    About the Course

    This course covers the laboratory determination of the viscosity of oils at 150 degree C and 1 x 106 s -1 and at 100 degree C and 1 x 106 s - 1, using high shear rate tapered-plug viscometer models BE/C or BS/C.

    Newtonian calibration oils are used to adjust the working gap and for calibration of the apparatus. These calibration oils cover a range from approximately 1.4 mPas to 5.9 mPas (cP) at 150 degree C and 4.2 mPas to 18.9 mPas (cP) at 100 degree C. This test method should not be used for extrapolation to higher viscosities than those of the Newtonian calibration oils used for calibration of the apparatus. If it is so used, the precision statement will no longer apply. The precision has only been determined for the viscosity range 1.48 mPas to 5.07 mPas at 150 degree C and from 4.9 mPas to 11.8 mPas at 100 degree C for the materials listed in the precision section.

    The course can be completed in about one hour.

    Learning Outcomes

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

    • Describe the apparatus required for this test method
    • Identify the sampling procedures for the test oils
    • Explain the initial preparation of the apparatus
    • Describe the procedure for the laboratory determination of the viscosity of oils
    • Recall the test operation
    • Recall the reporting requirements for the high temperature high shear (HTHS) viscosity measurement


    Anyone who runs the D4741 test method or who needs an understanding of the test method and how it is properly run.

    Course Content

    • Introduction
    • Procedural Outlines
    • Glossary
    • Data Sheet
    • Quiz
    • Referenced Materials
    • Certificate

    CEUs and Certificate

    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.

    Reference Materials Included

    ASTM D4741


    1 year online subscription for a Single-User Only via username/password. Requires internet access.

    For pricing for Multi-User access or for more information, please contact sales here or call 1-877-909-ASTM.

    Technology Requirements

    For a list of technology requirements for accessing ASTM Training please click here.

    Stock # TRAIN-D4741-PASS

    Price: $174