Have any standards been developed for the physical properties of tire-derived fuel (TDF)?
Yes, in 2001, the American Society for Testing and Materials (ASTM) developed the following standard for shredded (not whole) tire derived fuel: “ACTIVE STANDARD: D6700-01 Standard Practice for Use of Scrap Tire-Derived Fuel.” The following statement lists the scope of the TDF standard which is quoted from the ASTM website: “1. Scope 1.1 This practice covers and provides guidance for the material recovery of scrap tires for their fuel value. The conversion of a whole scrap tire into a chipped formed for use as a fuel produces a product called tire-derived fuel (TDF). This recovery practice has moved from a pioneering concept in the early 1980s to a proven and continuous use in the United States with industrial and utility applications. 1.2 Combustion units engineered to use solid fuels, such as coal or wood or both, are fairly numerous throughout the U.S. Many of these units are now using TDF even though they were not specifically designed to burn TDF. It is clear that TDF has combusti
