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Uncertainty Budgets for SOP 4


The purpose of this webinar is to enable laboratory metrology staff to specify uncertainties for SOP 4 following the Guide to the Expression of Uncertainty in Measurement, using SOP 4, 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 4, participants will be able to:

  • EXPLAIN the components of uncertainty that need to be included or JUSTIFY their status as negligible; 
  • DEVELOP an uncertainty budget based on concepts presented in NISTIR 6969, SOP 4; 
  • CALCULATE and REPORT measurement uncertainties for SOP 4 calibrations.

Technology Requirement(s):

You will need the following to participate in the webinar:

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

Materials & Supplies:

Not applicable


Participants are expected to have previous training on SOP 4, double substitution procedures and laboratory experience in its application. (OJT training is required as a minimum; OWM Basic Metrology or Mass Seminar attendance is preferred.)

Minimum Requirement(s):

Completion includes completing pre-work assignment, full attendance and participation in the session activities and discussion, and completing an on-line evaluation after the course.


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.


State laboratory staff who have responsibilities for developing, implementing, and/or improving the uncertainty analyses methods and reporting in their laboratory as well as those who are seeking OWM recognition and/or accreditation or improvements to support recognition/accreditation through adding this measurement to their Scope. This course is available for non-weights and measures participants.


Georgia Harris
Office of Weights and Measures,
(301) 975 - 4014
Email: g.harris@nist.gov

Related Project(s):

NIST OWM has a number of other training opportunities scheduled. For more information:


Start Date: Monday, June 17, 2013
End Date: Monday, June 17, 2013
Location: Adobe Connect
Audience: Industry, Government
Format: Webinar


NIST / Office of Weights and Measures

Class No.

Time: 2:00p.m - 4:00p.m ET


Register for participation using the Office of Weights and Measures Contact Management System. Database users must first establish an account by going to the link listed above. You must register in the OWM Contact Management System to participate in the webinar. Follow the instructions to create an account unless you are already a registered user. Your request will be processed within one business day and then you will be sent a password so that you may begin to use the system. If you have any questions, please contact Isabel Chavez at (301) 975‑2128.

Registration Contact:

Yvonne Branden,
Office of Weights and Measures,
(301) 975 - 3272
Email: yvonne.branden@nist.gov

Isabel Chavez,
Contact Management System Administrator,
(301) 975 - 2128
Email: isabel.chavez@nist.gov

Security Instructions:

Not applicable.

Visitor Information 

Not applicable.


Not applicable.

Technical Contact:

Georgia Harris
Office of Weights and Measures,
(301) 975 - 4014
Email: g.harris@nist.gov