According to ASTM standards E856-83 (2006), RDF can be classified into 7 categories. The material presented here is defined as “Type 4”. Combustible wastes processed into powder form, 95 % by weight passes through a 10 mesh screen (2.0 mm square), namely Powder RDF. Parameters may be tailored to specific requirements.

This makes RDF4 suitable for direct firing in industrial forced air burners.