Comparison of ASME Y14.5 1994 to 2009 - Introductory Level

This 1-day introductory-level course offers an explanation of features in the ASME Y14.5-2009 Standard and compares them to the 1994 Standard. The course covers the pertinent changes made to the Y14.5 standard, including how the subject matter has been reorganized and about new sections that have been created for profile, orientation, and form.

Each attendee receives:
  • An ASME Y14.5 1994-2009 Comparison Workbook
  • Class handouts
  • A GD&T Ultimate Pocket Guide (2009)
  • An ASME Y14.5 1994-2009 Comparison Chart Set

Newly acquired learning is reinforced throughout the class with numerous practice exercises.

What Will You Learn

After completing this course, you’ll be able to explain these major changes to the standard:
  • More than thirty new or revised terms
  • Sixteen new or revised symbols
  • Revisions and additions to the fundamental rules
  • Revisions and additions to the concept of feature of size
  • Revisions and new symbols for datum specifications
  • Revisions to composite position tolerances
  • Surface boundaries and axis methods of interpretation
  • Revisions and new additions to profile tolerances

Is This Course For You

This course is valuable for individuals who create or interpret engineering drawings, product and gage designers; process, product, and manufacturing engineers; supplier quality engineers/professionals; CMM operators; buyers/purchasers; checkers; inspectors; technicians; and sales engineers/professionals.

Materials Provided

This data is not available at this time

Course Requirements

This data is not available at this time


  • 24 revised terms in ASME Y14.5-2009
  • 16 new terms in ASME Y14.5-2009
  • Revised and new modifying symbols
  • The datum system
  • Revisions to geometric symbols
  • 3-D digital data sets
  • Summary of major changes
  • Implementing a new standard