ASTM International has introduced a new standard designed to encourage the consideration of the entire life cycle of tyres by providing a classification system for recovered carbon black (rCB). The new standard (D8632) was developed by ASTM’s recovered carbon black (rCB) committee (D36).
“Recovered carbon black (rCB) is a semi-reinforcing filler obtained from post-consumer rubber products such as tires and conveyor belts,” says ASTM member Jorge Lacayo-Pineda. “Through various thermal decomposition processes, the feedstock is converted into oil, gas, and raw rCB. After subsequent post-processing steps, the final product is rCB.”
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