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Uncertainty Budgets for SOP 14 (Gravimetric Volume Calibrations)

This 2 hour webinar will cover Uncertainty Analysis for Gravimetric Volume calibrations and is to enable laboratory metrology staff to specify uncertainties for SOP 14 following the Guide to the Expression of Uncertainty in Measurement, using SOP 14, SOP 29, and other applicable resources that will be provided.

Learning Objectives:

At the end of this 2-hour session, using notes and SOP 29 and SOP 14, participants will be able to:

  • EXPLAIN the components of uncertainty that need to be included in gravimetric volume calibrations or JUSTIFY their status as negligible;
  • DEVELOP an uncertainty budget based on concepts presented in NISTIR 7383, SOP 14;
  • CALCULATE and REPORT measurement uncertainties for SOP 14 calibrations.

Technology Requirement(s):

You will need the following to participate in the webinar:

  • Computer or laptop
  • Internet connection, a broadband connection is recommended
  • Telephone
  • Optional: a telephone headset

Materials & Supplies:

SOP 14 (download from:


Participants are expected to have previous training on SOP 14, Gravimetric Calibration of Volumetric Ware procedure, and laboratory experience in its application. (OJT training is required as a minimum; OWM Basic Metrology or Volume Seminar attendance is preferred.)

Minimum Requirement(s):

Completion includes completing pre-work assignment and submission of current uncertainties for this procedure, full attendance and participation in the session activities and discussion, and completing an on-line evaluation after the course. Submitted examples WILL be shared with other course participants during review. 


Laboratory staff who have responsibilities for developing, implementing, and/or improving gravimetric volume calibration uncertainties in their laboratory. This course is available for non-weights and measures participants.


The current fee for webinars is $199 and confirmed participants will be provided a link to make a payment. Registration fees for State weights and measures regulatory officials and metrologists are funded by NIST OWM.


Georgia L. Harris,
Office of Weights and Measures,
Phone: (301) 975 - 4014
E-mail: g.harris [at] (g[dot]harris[at]nist[dot]gov)


NIST Office of Weights and Measures

Class No. 5322

Event Time: 10:00 am - 12:00 pm ET

Registration Deadline: Wednesday, May 14, 2014

Created April 29, 2014, Updated July 23, 2020