Glossary of Terms and Acronyms Page 10 | 27 Department of Transportation (DOT) The letters “DOT” precedes the tire identification number (TIN) and must be molded into the sidewall of all over-the-highway tires produced by tire manufacturers and retreaders that distribute and sell tires in the U.S. This mark certifies that the tire meets or exceeds all applicable safety standards established by the Code of Federal Regulations, Federal Motor Vehicle Safety Standards. Durometer An Instrument for measuring the indentation hardness of rubber. (ASTM D1566 – 21) Durometer Hardness A numerical value obtained from the durometer that measures the resistance to indentation (hardness) of the rubber. E Elastomer An elastic polymer. (ASTM D1566 – 21) Elongation Extension produced by a tensile stress. (ASTM D1566 – 21) End of Life (EOL) Product A product at the end of the product lifecycle which prevents users from receiving updates, indicating the product is at the end of its useful life. End-of-Life Tires (ELT) Refers to all tires that have reached the end of their useful life when the tire can no longer be used on vehicles (after having been retreaded or regrooved) and are ready to be discarded and managed, whether through reuse, recycling, landfill disposal, or another means. End User An entity that purchases and uses tire derived material (TDM) as a finished use or tire- derived product (TDP) for its intended use. End Use Application The ultimate application for which a product has been designed or for which it is ultimately used. Energy Recovery The extraction of the fuel or heat value from whole processed tires through incineration.
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