ASTM D7471-19(2024)

Anotácia textu normy ASTM D7471-19(2024) :

This specification addresses the physical properties of copolymers of chlorotrifluoroethylene, perfluoroalkoxy, and tetrafluoroethylene that are suitable for extrusion, compression, and injection molding. It does not cover blended and recycled materials. Covered here is one type of fluoropolymer that is supplied in pellet form and classified according to their melting points, while the resins of each type are divided into four grades according to their melt flow rates. The materials shall be sampled in accordance with an adequate statistical sampling procedure and shall conform to specific gravity, melting point, flow rate, elongation, and tensile strength requirements when tested by the procedures itemized herein.


Keywords:
chlorotrifluoroethylene copolymer, copolymer of chlorotrifluoroethylene, perfluoroalkoxy, and tetrafluoroethylene, CPT copolymer, CTFE copolymer, ethylene copolymer, perfluoroaloxy copolymer, PFA copolymer, tetrafluoroethylene copolymer, TFE copolymer,, ICS Number Code 83.080.20 (Thermoplastic materials)