ASTM International
Once known as the American Society for Testing and Materials, the ASTM is a voluntary standards development organization formed in 1898 in Philadelphia, and a trusted source for technical standards for materials, products, systems, and services.

Locations:
Stork Herron Testing Laboratories, Inc. - Cleveland, OHStork Materials Testing & Inspection - Huntington Beach, CAStork Materials Testing & Inspection - Rancho Dominguez, CA Stork MMA - Newtown, PAStork Southwestern Laboratories, Inc. - Houston, TXStork Technimet, Inc. - New Berlin, WIStork Twin City Testing Corporation - St. Paul, MNStork East-West Technology Corporation - Jupiter, FLStork Twin City Testing Corporation - Des Moines, IA
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