1.1 This guide provides a framework or road map to compare and rank the controlled laboratory rates of degrada-tion and degree of physical property losses of polymers by thermal and photooxidation processes as well as the biodegra-dation and ecological impacts in defined applications and disposal environments after degradation. Disposal environ-ments range from exposure in soil, landill, and compost in which thermal oxidation may occur and land cover and agricultural use in which photooxidation may also occur.
