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Draining Test Measures and Provers

This 1 hour webinar will reinforce the concepts of properly draining test measures and provers. These concepts must be followed to ensure that test measures and provers are used in a wet condition and contain the same amount of liquid at the start of each test to ensure accuracy in measurements from test to test when evaluating retail motor fuel dispensers.

Learning Objectives:

At the end of the session, participants will be able to:

  • IDENTIFY and DESCRIBE the steps needed to properly drain hand-held test measures and bottom-drain provers
  • IDENTIFY two reasons why it is important to follow NIST Handbook 44 requirements for draining hand-held test measures and bottom drain provers.

Technology Requirement(s):

The Webcast will be streamed in medium bandwidth (350kbs), so viewers needed to have a constant connection during the webcast.

  1. Hardware and operating system configurations:
  • Windows XP (Explorer 8, 9, 10, 11; Mozilla Firefox; Google Chrome)
  • Windows Vista (Internet Explorer or Firefox)
  • Windows 7 or 8 (Mozilla Firefox; Google Chrome)
  • Apple Mac OS 10.5x (Mozilla Firefox; Apple Safari; Google Chrome)
  • Ubuntu Linux (Firefox only)
  • Media players In order to access the event, you must have, at a minimum, Adobe® Flash® Player 11.2+ installed on your computer. Please visit to download the Flash Player.
  • Internet browsers In order to access the event, you must have either Microsoft Internet Explorer (Explorer 8, 9, 10, 11) or Mozilla Firefox 3+ browser for Windows operating systems. For accessing events via Mac operating systems you must have Mozilla Firefox 3+ or Safari 4.x.
  • Optional: If you have never attended an Adobe Connect meeting before: Test your connection: Get a quick overview:
  • Materials & Supplies:

    The presentation will be available for download during the webinar. 


    There are no prerequisites for this webinar.


    There is no pre-work for this webinar.

    Minimum Requirement(s):

    Successful completion includes full attendance, full participation in the session activities and discussions, and completing an online evaluation after the course.


    This webinar is for weights and measures field officials and administrators (not intended for laboratory staff).


    This webinar is for weights and measures field officials and administrators only. Registration fees for State weights and measures regulatory officials are funded by NIST OWM.


    G. Diane Lee
    Office of Weights and Measures,
    (301) 975 - 4405
    Email: diane.lee [at] (diane[dot]lee[at]nist[dot]gov)


    NIST / Office of Weights and Measures

    Class No.

    Time: 2:30p.m - 3:30p.m ET

    Registration Deadline: Wednesday, August 20, 2014

    Created August 5, 2014, Updated July 23, 2020