American Society for Testing and Materials (ASTM) Standards are now available online.
ASTM International is an international standards developing organization that develops and publishes voluntary technical standards for a wide range of materials, products, systems, and services. ASTM International develops standards using a consensus process.
ASTM International was formed in 1898 in the United States as the American Society for Testing and Materials by a group of scientists and engineers, led by Charles Benjamin Dudley, to address the frequent rail breaks plaguing the fast-growing railroad industry. The group developed a standard for the steel used to fabricate rails. It 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, it has a dominant role among standards developers in the USA, and claims to be the world's largest developer of standards.
Today, ASTM International supports thousands of technical committees, which draw their members from around the world and collectively maintain more than 12,000 standards. The quality of the standard test methods is such that they are frequently used world-wide, even in places where ASTM specifications are not used.