รายละเอียดเอกสาร

This standard provides a classification system for tabulating the properties for biaxially oriented polyethylene terephthalate film and sheeting in thicknesses from 1.5 μm to 355 μm. 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). NOTE 1: Film is defined in Terminology D883 as an optional term for sheeting having a nominal thickness no greater than 250 µm. NOTE 2: In order to conform to the original scope of Specification D5047, this classification also includes sheeting up to and including thicknesses of 355 µm. NOTE 3: It is strongly recommended that this classification system be used for all new applications and specifications and that the specification of films referencing Specification D5047 be expeditiously withdrawn or converted to this classification system. Polyethylene terephthalate materials, being thermoplastic, are reprocessable and recyclable. This specification allows for the use of those polyethylene terephthalate plastic materials, provided that any specific requirements as governed by the producer and end user are met.

...