รายละเอียดเอกสาร

This specification is intended to be a means of calling out finished machined parts ready for commercial use. This specification establishes requirements for parts machined from unplasticized, 100 % polychlorotrifluoroethylene (PCTFE) homopolymers. This specification does not cover parts machined from PCTFE copolymers, PCTFE film or tape less than 0.25-mm (0.010-in.) thick, or modified PCTFE (containing pigments or plasticizers). This specification allows for parts containing regrind and recycled material. The specification does not cover PCTFE parts used in aerospace applications involving storage and handling of oxygen media, air media, inert media, and certain reactive media (specifically ammonia, gaseous hydrogen, and liquid hydrogen), in which dimensional stability, high molecular weight, molecular weight retention, and crystallinity control are important considerations. For aerospace grade, machined PCTFE parts, use Specification D7194.

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