Woodland Scenics Quality Brands is committed to manufacturing superior quality, safety-tested products. All of our modeling materials are evaluated by a Consumer Product Safety Commission (CPSC) Approved Toxicologist to ensure they meet the standards for art materials set out by ASTM (American Society for Testing and Materials) International, if applicable. "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." For more information about ASTM International, visit http://www.astm.org/ABOUT/overview.html.