ASTM International (
ASTM), originally known as the American Society for Testing and Materials, is an international
standards organization that develops and publishes voluntary consensus technical
standards for a wide range of materials, products, systems, and services.
ASTM predates other standards organizations such as BSI (1901), DIN (1917) and AFNOR (1926), but differs from these in that it is not a national standards body, that role being taken in the USA by ANSI. However, ASTM has a dominant role among standards developers in the USA, and claims to be the world's largest developer of standards. Using a consensus process, ASTM supports thousands of volunteer technical committees, which draw their members from around the world and collectively develop and maintain more than 12,000 standards. The Annual Book of ASTM Standards consists of 77 volumes.
A group of scientists and engineers, led by Charles Benjamin Dudley formed the American Society for Testing and Materials in 1898 to address the frequent rail breaks plaguing the fast-growing railroad industry. The group developed a standard for the steel used to fabricate rails.
The standards produced by ASTM International fall into six categories
