ASTM-D7471 › Standard Specification for CPT-Fluoropolymer Molding and Extrusion Materials

ASTM-D7471 - 2019 R24 EDITION - CURRENT
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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.

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Scope

1.1 This specification covers copolymers of chlorotrifluoroethylene, perfluoroalkoxy, and tetrafluoroethylene and are suitable for extrusion, compression, and injection molding.

1.2 This specification does not cover blended materials and does not cover recycled materials.

1.3 The values stated in SI units as detailed in IEEE/ASTM SI-10 are to be regarded as the standard. The values given in parentheses are for information only.

1.4 The following safety hazards caveat pertains only to the test method portion, Section 11, of this specification.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Note 1—There is no known ISO equivalent to this standard.

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)

To find similar documents by ASTM Volume:

08.03 (Plastics (III): D5117 - latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products)

To find similar documents by classification:

83.080.20 (Thermoplastic materials)

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Document Number

ASTM-D7471-19R24

Revision Level

2019 R24 EDITION

Status

Current

Modification Type

New

Publication Date

April 22, 2024

Document Type

Specification

Page Count

3 pages

Committee Number

D20.15