Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

5605: NIST Handbook 133 - Checking the Net Contents of Packaged Goods - Basic

This 4 day seminar will focus 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:

After this seminar, you will be able to:

  • DEFINE 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.
  • DESCRIBE and APPLY moisture allowances.
  • RECOGNIZE the Scope of Chapter 3.
  • IDENTIFY Gravimetric Test Procedures for Liquids.

Materials & Supplies:

Participants will be provided with a notebook.


There are no prerequisites for this seminar.


Confirmed participants will receive a Standard Deviation Worksheet with their class Confirmation Letter. This Worksheet must be completed and submitted on the first day of class.

Minimum Requirement(s):

In order to receive a Certificate of Successful Completion, students must be in attendance for the entire class and actively participate in all in-class activities. Students will be assessed on their application of all learning objectives for this course.


Weights and Measures officials only.


There are no registration fees for this seminar. However, participants are responsible for their own travel expenses.


David Sefcik
Phone: 301-975-4868
Email: david.sefcik [at] (david[dot]sefcik[at]nist[dot]gov)

Technology Requirement(s):

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


NIST Office of Weights and Measures

Created May 29, 2019, Updated November 27, 2019