1.1 ,This standard provides a classification system for tabulating the properties for biaxially oriented polyethylene terephthalate film and sheeting in thicknesses from 1.5 μ,m to 355 μ,m. For this classification system, polyethylene terephthalate film and sheeting shall be defined as the material derived from terephthalic acid and ethylene glycol and shall consist of at least 90 % polyethylene terephthalate homopolymer with a typical melting temperature range of 225 ,°,C to 250 ,°,C. This specification does not apply to coated, coextruded, tinted, pigmented, or metallized film or sheeting. This classification (in accordance with D8065/D8065M) is intended to eventually replace Specification D5047 (ref. Note 3).