For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   RECYCLABLES. Material having an economic value in the secondary materials market. The following materials have an economic value: tin and aluminum cans, glass, newsprint and plastic containers H.D.P.E.
(`79 Code, § 94.001) (Ord. 89-169, passed 8-21-89)