American Society for Testing Material Law and Legal Definition

American Society for Testing Material (ASTM) is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services. These standards have and continue to play a preeminent role in all aspects important to industries where corrosion of metals is an issue. It includes, computers in corrosion, atmospheric corrosion, laboratory corrosion tests, environmentally assisted cracking, corrosion of nuclear materials, corrosion in natural waters, corrosion in soils, electrochemical measurements in corrosion testing, in-plant corrosion tests, and corrosion of reinforcing steel.

The organization's headquarters is in West Conshohocken, Pennsylvania. ASTM is a not-for-profit organization that provides a global forum for the development and publication of voluntary consensus standards for materials, products, systems, and services.