One of the revisions in the ASME Y14.5-2009 Standard is related to feature of size. In the new standard, the definition of the term, “feature of size” has been revised to make it a general term that refers to two type of features of size: a regular feature of size and an irregular feature of size.

The chart below shows a comparison between the 1994 and 2009 use of the term.comparison_chart

A comparison chart showing the major revisions between ASME Y14.5 1994 and ASME Y14.5-2009 is available at our website. You can also sign up for an online update class, a public workshop or an onsite workshop.