||Scrap tires comprise nearly one percent of solid municipal waste
in the United States. According to the Rubber Manufacturers Association,
Washington, D.C., approximately 125 million tires are used annually
for tire-derived fuel.
ASTM Committee D34 on Waste Management recently issued a new standard for the material
recovery of scrap tires for fuel: D 6700, Standard Practice for
Use of Scrap Tire-Derived Fuel.
The release of ASTM D 6700 in October provides definitive standards for size, distribution,
sampling, and testing of tire-derived fuel, said Michael Blumenthal,
vice president of the Rubber Manufacturers Association.
Sampling and testing protocols in the standard describe a fuel
with a volatile content of nearly 66 percent, indicating rapid
heat release. A considerable amount of information, experience
and data on tire-derived fuel has long demonstrated its effectiveness
and safety as a fuel choice for certain industrial applications,
Typically, tire-derived fuel is mixed with other energy sources
to fire industrial power boilers, electrical utility generating
boilers, cement kilns, and other combustion units. Testing by
the U.S. EPA, state, and individual sources present tire-derived
fuel as an acceptable supplement when blended with conventional
fuel in existing combustion units, requiring little or no modification.
D 6700 was approved August 10 by ASTM Committee D34 on Waste Management
and is the direct responsibility of Subcommittee D34.03 on Treatment.
The committee develops standards relating to the management of
wastes. Standards cover generation, storage, transportation, treatment,
recovery, and disposal, and other issues of waste management.
The waste addressed is generated by industrial, commercial, residential,
and institutional sources.
Direct technical questions to Michael H. Blumenthal, Rubber Manufacturers Association, Washington, D.C. (phone: 202/682-4882).
Committee D34 meets April 15-17 in Pittsburgh, Pa. For details,
contact Dan Schultz, manager, ASTM Technical Committee Operations (phone: 610/ 832-9716).
Copyright 2001, ASTM