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Handbook 133 - Checking the Net Contents of Packaged Goods


The focus will be on the requirements and basic test procedures for packages labeled by weight. This will include, but not be limited to a review of U.S. Weights and Measures Laws, good quantity control processes, sampling, calculating standard deviation, moisture allowances, inspection reports and calculations, test procedures, tare, relevant court cases, drained weight and ice glazed procedures and more. The sessions will include formal lecture, class discussion, exercises, reading assignments, audio-visual presentations and hands-on practice.

Learning Objectives:

  • To understand the History, Scope and Package Requirements.
  • Explain the Statistical Basis of Handbook 133 and Sampling Plans.
  • Describe What, When and Where to Test.
  • Explain Health and Safety aspects.
  • Identify Good Measurement Practices.
  • Properly Select Measurement Standards and Test Equipment.
  • Apply Basic Test Procedure.
  • Apply Tare Procedures.
  • Compute Nominal Gross Weight and Determine Package Errors.
  • Understand and apply moisture allowances.
  • Recognize the Scope of Chapter 3.
  • Apply Gravimetric Test Procedures for Liquids

Technology Requirement(s):

You MUST bring a calculator and be able to calculate Standard Deviation. There will be no use of computers.

Materials & Supplies:

Participants will be provided with a USB flash drive that includes the presentation materials.



Minimum Requirement(s):

Students must be in attendance for the entire class and actively participate in all in-class activities. You will be assessed on your application of all learning objectives for this course.


State Weights and Measures officials only.


There are no registration fees this seminar.


David Sefcik,
Office of Weights and Measures,
(301) 975 - 4868

Lisa Warfield,
Office of Weights and Measures,
(301) 975 - 3308


Training for HB133 “Checking the Net Contents of Packaged Goods”

Related Project(s):

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


Start Date: Monday, August 12, 2013
End Date: Friday, August 16, 2013
Location: Sacramento, CA
Audience: Government
Format: Seminar


California Department of Food & Agriculture
Division of Measurement Standards

NIST Office of Weights and Measures


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. 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

Isabel Chavez,
Office of Weights and Measures,
(301) 975 - 2128

Technical Contact:

Lisa Warfield,
Office of Weights and Measures,
(301) 975 - 3308