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Category: ASME and ISO Standards

Articles related to the two main GD&T Standards, ASME and ISO

A Comparison of GD&T Standards: ISO GPS vs. ASME Y14.5

by Crystal Bemis on July 29, 2021.

What is the difference between the ISO and ASME GD&T standards? Read on to find the answers to these questions and more – and see our GD&T Standards Comparison Chart available to download for free below. There are many standards that define requirements for GD&T. The two most popular are published by ASME (American Society of Mechanical Engineers) and ISO (International...

ASME Y14.5 2009 vs. 2018: What Are the Major Changes in the Most Recent Standard?

by Saif Afridi on December 1, 2020.

ASME recently released the much-awaited Y14.5 2018 GD&T Standard! Find out what has changed from the 2009 edition and what’s you need to know… The rise of Geometric Dimensioning & Tolerancing has been incredibly phenomenal. A primitive concept in the 1940s, GD&T is now an internationally acclaimed system that has become the industry standard for mechanical part production. Rather than...

The ASME Y14.5 GD&T Standard

by Seth Elder on July 24, 2020.

ASME Y14.5 is an established, widely used GD&T standard containing all the necessary information for a comprehensive GD&T system. This article provides an in-depth look at of the contents, history, and purpose of the standard. GD&T and Standardization Geometric Dimensioning and Tolerancing, or GD&T for short, is a language of symbols used to communicate information on technical drawings.  In order...