ASTM — American Society for Testing & Materials

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ASTM — International

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence

Valves of most manufacturers have components whose materials correspond to ASTM standards.