ASTM D7471-19
(Specification)Standard Specification for CPT-Fluoropolymer Molding and Extrusion Materials
Standard Specification for CPT-Fluoropolymer Molding and Extrusion Materials
ABSTRACT
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.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: Although this classification system and ISO 20568-1 and ISO 20568-2 differ in approach or detail, data obtained using either are technically equivalent.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D7471 −19
Standard Specification for
1
CPT-Fluoropolymer Molding and Extrusion Materials
This standard is issued under the fixed designation D7471; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D638 Test Method for Tensile Properties of Plastics
D792 Test Methods for Density and Specific Gravity (Rela-
1.1 This specification covers copolymers of
tive Density) of Plastics by Displacement
chlorotrifluoroethylene, perfluoroalkoxy, and tetrafluoroethyl-
D883 Terminology Relating to Plastics
ene and are suitable for extrusion, compression, and injection
D1238 Test Method for Melt Flow Rates of Thermoplastics
molding.
by Extrusion Plastometer
1.2 This specification does not cover blended materials and
D1600 Terminology forAbbreviatedTerms Relating to Plas-
does not cover recycled materials.
tics
1.3 The values stated in SI units as detailed in IEEE/ASTM D3418 Test Method for Transition Temperatures and En-
thalpies of Fusion and Crystallization of Polymers by
SI-10 are to be regarded as the standard. The values given in
parentheses are for information only. Differential Scanning Calorimetry
D3892 Practice for Packaging/Packing of Plastics
1.4 The following safety hazards caveat pertains only to the
E177 Practice for Use of the Terms Precision and Bias in
test method portion, Section 11, of this specification. This
ASTM Test Methods
standard does not purport to address all of the safety concerns,
IEEE/ASTM SI-10 Use of the International System of Units
if any, associated with its use. It is the responsibility of the user
(SI): The Modem Metric System
of this standard to establish appropriate safety, health, and
3
2.2 ISO Standards:
environmental practices and determine the applicability of
ISO 20568-1 Plastics—Fluoropolymer Dispersion and
regulatory limitations prior to use.
Moulding and Extrusion Materials—Part 1: Designation
NOTE 1—Although this classification system and ISO 20568-1 and
and Basis for Specification
ISO 20568-2 differ in approach or detail, data obtained using either are
ISO 20568-2 Plastics—Fluoropolymer Dispersion and
technically equivalent.
Moulding and Extrusion Materials—Part 2: Preparation of
1.5 This international standard was developed in accor-
Test Specimens and Determination of Properties
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Terminology
Development of International Standards, Guides and Recom-
3.1 General—The terminology given in Terminology D883
mendations issued by the World Trade Organization Technical
is applicable to this specification.
Barriers to Trade (TBT) Committee.
3.2 Definitions:
3.2.1 lot, n—one production run or a uniform blend of two
2. Referenced Documents
or more production runs.
2
2.1 ASTM Standards:
3.3 General—The abbreviated terms given in Terminology
D618 Practice for Conditioning Plastics for Testing
D1600 are applicable to this specification.
1 4. Classification
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
4.1 This specification covers one type of fluoropolymer
Materials.
supplied in pellet form classified according to their melting
Current edition approved May 1, 2019. Published June 2019. Originally
approved in 2009. Last previous edition approved in 2014 as D7471 – 09(2014). point. The resins of each type are divided into four grades
DOI: 10.1520/D7471-19.
according to their melt flow rate.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7471−19
4.2 An one-line system shall be used to specify materials 8. Specimen Preparation
covered by this specification. The system uses predefined cells
8.1 Prepare a molded sheet 1.5 6 0.3 mm (0.06 6 0.01 in.)
to refer to specific aspects of this specification, as illustrated as
thick. Use a picture-frame-type
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7471 − 09 (Reapproved 2014) D7471 − 19
Standard Specification for
1
CPT-Fluoropolymer Molding and Extrusion Materials
This standard is issued under the fixed designation D7471; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 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 safety, health, and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use.
NOTE 1—There is no known ISO equivalent to this standard.Although this classification system and ISO 20568-1 and ISO 20568-2 differ in approach
or detail, data obtained using either are technically equivalent.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D638 Test Method for Tensile Properties of Plastics
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3418 Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential
Scanning Calorimetry
D3892 Practice for Packaging/Packing of Plastics
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
IEEE/ASTM SI-10 Use of the International System of Units (SI): The Modem Metric System
3
2.2 ISO Standards:
ISO 20568-1 Plastics—Fluoropolymer Dispersion and Moulding and Extrusion Materials—Part 1: Designation and Basis for
Specification
ISO 20568-2 Plastics—Fluoropolymer Dispersion and Moulding and Extrusion Materials—Part 2: Preparation of Test
Specimens and Determination of Properties
3. Terminology
3.1 General—The terminology given in Terminology D883 is applicable to this specification.
3.2 Definitions:
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved March 1, 2014May 1, 2019. Published March 2014June 2019. Originally approved in 2009. Last previous edition approved in 20092014 as D7471
– 09.09(2014). DOI: 10.1520/D7471-09R14.10.1520/D7471-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7471 − 19
3.2.1 lot, n—one production run or a uniform blend of two or more production runs.
3.3 lot, n—one production run or a uniform blend of two or more production runs.
3.3 General—The abbreviated terms given in Terminology D1600 are applicable to this specification.
4. Classification
4.1 This specification covers one type of fluoropolymer supplied in pellet form classified according to their melting point. The
resins of each type are divided into four
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7471 − 19
Standard Specification for
1
CPT-Fluoropolymer Molding and Extrusion Materials
This standard is issued under the fixed designation D7471; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D638 Test Method for Tensile Properties of Plastics
D792 Test Methods for Density and Specific Gravity (Rela-
1.1 This specification covers copolymers of
tive Density) of Plastics by Displacement
chlorotrifluoroethylene, perfluoroalkoxy, and tetrafluoroethyl-
D883 Terminology Relating to Plastics
ene and are suitable for extrusion, compression, and injection
D1238 Test Method for Melt Flow Rates of Thermoplastics
molding.
by Extrusion Plastometer
1.2 This specification does not cover blended materials and
D1600 Terminology for Abbreviated Terms Relating to Plas-
does not cover recycled materials.
tics
D3418 Test Method for Transition Temperatures and Enthal-
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 pies of Fusion and Crystallization of Polymers by Differ-
ential Scanning Calorimetry
parentheses are for information only.
D3892 Practice for Packaging/Packing of Plastics
1.4 The following safety hazards caveat pertains only to the
E177 Practice for Use of the Terms Precision and Bias in
test method portion, Section 11, of this specification. This
ASTM Test Methods
standard does not purport to address all of the safety concerns,
IEEE/ASTM SI-10 Use of the International System of Units
if any, associated with its use. It is the responsibility of the user
(SI): The Modem Metric System
of this standard to establish appropriate safety, health, and
3
2.2 ISO Standards:
environmental practices and determine the applicability of
ISO 20568-1 Plastics—Fluoropolymer Dispersion and
regulatory limitations prior to use.
Moulding and Extrusion Materials—Part 1: Designation
NOTE 1—Although this classification system and ISO 20568-1 and
and Basis for Specification
ISO 20568-2 differ in approach or detail, data obtained using either are
ISO 20568-2 Plastics—Fluoropolymer Dispersion and
technically equivalent.
Moulding and Extrusion Materials—Part 2: Preparation of
1.5 This international standard was developed in accor-
Test Specimens and Determination of Properties
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 3. Terminology
Development of International Standards, Guides and Recom-
3.1 General—The terminology given in Terminology D883
mendations issued by the World Trade Organization Technical
is applicable to this specification.
Barriers to Trade (TBT) Committee.
3.2 Definitions:
3.2.1 lot, n—one production run or a uniform blend of two
2. Referenced Documents
or more production runs.
2
2.1 ASTM Standards:
3.3 General—The abbreviated terms given in Terminology
D618 Practice for Conditioning Plastics for Testing
D1600 are applicable to this specification.
1
4. Classification
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
4.1 This specification covers one type of fluoropolymer
Materials.
supplied in pellet form classified according to their melting
Current edition approved May 1, 2019. Published June 2019. Originally
approved in 2009. Last previous edition approved in 2014 as D7471 – 09(2014). point. The resins of each type are divided into four grades
DOI: 10.1520/D7471-19.
according to their melt flow rate.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7471 − 19
4.2 An one-line system shall be used to specify materials 8. Specimen Preparation
covered by this specification. The system uses predefined cells
8.1 Prepare a molded sheet 1.5 6 0.3 mm (0.06 6 0.01 in.)
to refer to specific aspects of this specification, as illustrated as
thick. Use a picture-frame-type chase having a suitable
follows:
blanked-out section and thickness to produce the desired sheet.
Specification _____________
...
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