ASTM D3307-21

Standard Specification for Perfluoroalkoxy (PFA) Resin Molding and Extrusion Materials

ABSTRACT
This specification covers melt processable molding and extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocarbon resin. The materials are copolymers of TFE-fluorocarbon resins containing perfluoroalkoxy side chains. This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. This specification covers 13 types of PFA-fluorocarbon resins supplied in pellet form for molding and extrusion. The materials shall be of uniform composition and so prepared as to conform to the requirements specified. Conditioning, melt flow rate, melting endotherm peak temperature, specific gravity, tensile properties, and dielectric constant and dissipation factor tests shall be performed to conform with the requirements specified.
SCOPE
1.1 This specification covers melt processable molding and extrusion materials of Perfluoroalkoxy (PFA) resin. The materials are copolymers of tetrafluoroethylene and perfluoroalkoxy.  
1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this specification.  
1.3 This specification does not cover recycled plastics.  
1.4 The values stated in SI units2 are to be regarded as standard. The values given in parentheses are for information only.  
1.5 The following precautionary caveat pertains only to the test methods portions, Sections 8 and 9 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: This specification, ISO 20568-1, and ISO 20568-2 differ in approach or detail. Data obtained using either may not be technically equivalent.  
1.6 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.

General Information

• Status: Published
• Publication Date: 31-Aug-2021
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Standards Content (Sample)

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: D3307 −21
Standard Specification for
Perfluoroalkoxy (PFA) Resin Molding and Extrusion
1
Materials
This standard is issued under the fixed designation D3307; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification covers melt processable molding and
extrusion materials of Perfluoroalkoxy (PFA) resin. The mate-
2. Referenced Documents
rials are copolymers of tetrafluoroethylene and perfluoro-
3
2.1 ASTM Standards:
alkoxy.
D150 Test Methods forAC Loss Characteristics and Permit-
1.2 This specification is intended to provide a means for
tivity (Dielectric Constant) of Solid Electrical Insulation
callingoutplasticmaterialsusedinthefabricationofenditems
D618 Practice for Conditioning Plastics for Testing
or parts. It is not intended for the selection of materials.
D638 Test Method for Tensile Properties of Plastics
Material selection should be made by those having expertise in
D792 Test Methods for Density and Specific Gravity (Rela-
the plastics field after careful consideration of the design and
tive Density) of Plastics by Displacement
the performance required of the part, the environment to which
D883 Terminology Relating to Plastics
it will be exposed, the fabrication process to be employed, the
D1238 Test Method for Melt Flow Rates of Thermoplastics
costs involved, and the inherent properties of the material other
by Extrusion Plastometer
than those covered by this specification.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
1.3 This specification does not cover recycled plastics. tics
2
D1708 Test Method forTensile Properties of Plastics by Use
1.4 The values stated in SI units are to be regarded as
of Microtensile Specimens
standard. The values given in parentheses are for information
D3892 Practice for Packaging/Packing of Plastics
only.
D4591 Test Method for Determining Temperatures and
1.5 The following precautionary caveat pertains only to the
Heats of Transitions of Fluoropolymers by Differential
test methods portions, Sections 8 and 9 of this specification:
Scanning Calorimetry
This standard does not purport to address all of the safety
E177 Practice for Use of the Terms Precision and Bias in
concerns, if any, associated with its use. It is the responsibility
ASTM Test Methods
of the user of this standard to establish appropriate safety,
IEEE/ASTM SI-10 Standard for Use of the International
health, and environmental practices and determine the appli-
System of Units (SI): The Modern Metric System
cability of regulatory limitations prior to use.
4
2.2 ISO Standards:
NOTE 1—This specification, ISO 20568-1, and ISO 20568-2 differ in ISO 20568-1 Plastics—Fluoropolymer Dispersions and
approach or detail. Data obtained using either may not be technically
Moulding and Extrusion Materials—Part 1
equivalent.
ISO 20568-2 Plastics—Fluoropolymer Dispersions and
1.6 This international standard was developed in accor-
Moulding and Extrusion Materials—Part 2
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 Definitions—Definitions are in accordance with Termi-
nologies D883 and D1600.
1
This specification is under the jurisdiction of ASTM Committee D20 on
3
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Materials (Section D20.15.12). contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved Sept. 1, 2021. Published September 2021. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1974. Last previous edition approved in 2016 as D3307 – 16. DOI: the ASTM website.
4
10.1520/D3307-21. Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
2
As defined in IEEE/ASTM SI-10. 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 ----------------------
D3307 − 21
3.1.1 lot, n
...

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: D3307 − 16 D3307 − 21
Standard Specification for
Perfluoroalkoxy (PFA) Resin Molding and Extrusion
1
Materials
This standard is issued under the fixed designation D3307; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers melt processable molding and extrusion materials of Perfluoroalkoxy (PFA) resin. The materials are
copolymers of tetrafluoroethylene and perfluoroalkoxy.
1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts.
It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field
after careful consideration of the design and the performance required of the part, the environment to which it will be exposed,
the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by
this specification.
1.3 This specification does not cover recycled plastics.
2
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.5 The following precautionary caveat pertains only to the test methods portions, Sections 8 and 9 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—This specification, ISO 12086–1(2006),20568-1, and ISO 12086–2(2006)20568-2 differ in approach or detail. Data obtained using either may
not be technically equivalent.
1.6 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
3
2.1 ASTM Standards:
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
(Section D20.15.12).
Current edition approved April 1, 2016Sept. 1, 2021. Published April 2016September 2021. Originally approved in 1974. Last previous edition approved in 20102016 as
D3307 - 10.D3307 – 16. DOI: 10.1520/D3307-16.10.1520/D3307-21.
2
As defined in IEEE/ASTM SI-10.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
D3307 − 21
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
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
D1708 Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
D3892 Practice for Packaging/Packing of Plastics
D4591 Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning
Calorimetry
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
IEEE/ASTM SI-10 Standard for Use of the International System of Units (SI): The Modern Metric System
4
2.2 ISO Standards:
ISO 12086–120568-1 Plastics–FluoropolymerPlastics—Fluoropolymer Dispersions and Moulding and Extrusion
Materials–PartMaterials—Part 1
ISO 12086–220568-2 Plastics–FluoropolymerPlastics—Fluoropolyme
...