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ASTM D 4894 : 2019

Current
Current

The latest, up-to-date edition.

Standard Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-05-2019

This specification covers granular resins and test methods for polytetrafluoroethylene (PTFE) that have never been preformed or molded and are normally processed by methods similar to those used in powder metallurgy or ceramics, or by special extrusion processes.

1.1This specification covers granular resins and test methods for polytetrafluoroethylene (PTFE) that have never been preformed or molded and are normally processed by methods similar to those used in powder metallurgy or ceramics, or by special extrusion processes. These PTFE resins are homopolymers of tetrafluoroethylene, or, in some cases, modified homopolymers containing not more than one percent by weight of other fluoromonomers. The usual methods of processing thermoplastics generally are not applicable to these materials because of their viscoelastic properties at processing temperatures. The materials included herein do not include mixtures of PTFE resin with additives such as colorants, fillers or plasticizers; nor do they include reprocessed or reground resin or any fabricated articles. The methods and properties included are those required to identify the various types of resins. Additional procedures are provided in the Appendix for further characterization of the resins.

1.2The values stated in SI units as detailed in IEEE/ASTM SI-10 are to be regarded as the standard, and the practices of IEEE/ASTM SI-10 are incorporated herein.

1.3The following precautionary caveat pertains only to the Specimen Preparation section, Section 9, and the Test Methods section, Section 10, of this specification: This specification 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. See Notes 3 and 9 for specific cautionary statements.

Note 1:Information in this specification is technically equivalent to related information in ISO 12086-1 and ISO 12086-2.

1.4This 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.

Committee
D 20
DocumentType
Standard
Pages
14
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 4591 : 2017 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 3308 : 2012 : R2017 Standard Specification for PTFE Resin Skived Tape
ASTM D 3295 : 2015 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM F 754 : 2008 : R2015 Standard Specification for Implantable Polytetrafluoroethylene (PTFE) Sheet, Tube, and Rod Shapes Fabricated from Granular Molding Powders
ASTM D 4895 : 2018 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 1710 : 2015 Standard Specification for Extruded Polytetrafluoroethylene (PTFE) Rod, Heavy Walled Tubing and Basic Shapes
ASTM G 74 : 2013 Standard Test Method for Ignition Sensitivity of Nonmetallic Materials and Components by Gaseous Fluid Impact
ASTM D 4000 : 2016 Standard Classification System for Specifying Plastic Materials
ASTM D 6867 : 2003 : R2014 Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
ASTM D 3294 : 2015 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Molded Sheet and Molded Basic Shapes
ASTM D 4745 : 2019 Standard Classification System and Basis for Specification for Filled Polytetrafluoroethlyene (PTFE) Molding and Extrusion Materials Using ASTM Methods
ASTM D 4441 : 2015 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM F 1545 : 2015 : REV A Standard Specification for Plastic-Lined Ferrous Metal Pipe, Fittings, and Flanges

ASTM D 3295 : 2006 : R2011 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM D 4745 : 2011 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 1708 : 1996 Standard Test Method for Tensile Properties of Plastics By Use of Microtensile Specimens
ASTM D 883 : 2023 Standard Terminology Relating to Plastics
ASTM E 11 : 2020 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM D 4745 : 2019 Standard Classification System and Basis for Specification for Filled Polytetrafluoroethlyene (PTFE) Molding and Extrusion Materials Using ASTM Methods
ASTM D 1708 : 2006 : REV A Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM E 177 : 1990 : REV A : R1996 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 3892 : 2015 : R2020 Standard Practice for Packaging/Packing of Plastics
ASTM D 883 : 2024 Standard Terminology Relating to Plastics
ASTM D 4745 : 2006 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 3295 : 2006 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM D 3892 : 1993 : R2003 Standard Practice for Packaging/Packing of Plastics
ASTM D 4441 : 2004 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM D 3892 : 2015 Standard Practice for Packaging/Packing of Plastics
ASTM D 1708 : 2002 Standard Test Method for Tensile Properties of Plastics By Use of Microtensile Specimens
ASTM D 4745 : 2014 Standard Classification System and Basis for Specification for Filled Polytetrafluoroethlyene (PTFE) Molding and Extrusion Materials Using ASTM Methods
ASTM D 3295 : 2001 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM D 883 : 2022 Standard Terminology Relating to Plastics
ASTM D 1708 : 2006 Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D 883 : 2020 : REV B Standard Terminology Relating to Plastics
ASTM D 3295 : 1997 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM D 3892 : 1993 : R1998 Standard Practice for Packaging/Packing of Plastics
ASTM D 4591 : 2001 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 4895 : 1998 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 4591 : 2007 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM E 11 : 2022 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM D 3295 : 2015 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
ASTM D 4745 : 1997 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 1895 : 1996 Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
ASTM D 4591 : 2007 : R2012 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 4591 : 1997 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 4745 : 2011 : REV A Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 4895 : 2018 : R2023 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 4591 : 2017 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 4441 : 2015 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM D 4895 : 2018 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 1895 : 1996 : R2010 : EDT 1 Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
ASTM D 4745 : 2008 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 618 : 2013 Standard Practice for Conditioning Plastics for Testing
ASTM D 4441 : 1998 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM D 1708 : 2013 Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D 4895 : 2004 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 1708 : 2010 Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D 3892 : 1993 : R2009 Standard Practice for Packaging/Packing of Plastics
ASTM D 1708 : 2002 : REV A Standard Test Method for Tensile Properties of Plastics By Use of Microtensile Specimens
ASTM D 4441 : 2020 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM D 4895 : 2016 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 4441 : 2004 : R2010 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
ASTM D 4895 : 2010 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 1895 : 1996 : R2003 Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
ASTM D 4745 : 2011 : REV A : EDT 1 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials
ASTM D 1708 : 2018 Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D 1895 : 1996 : R2010 Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
ASTM D 1895 : 2017 Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
ASTM D 618 : 2021 Standard Practice for Conditioning Plastics for Testing
ASTM D 4591 : 2022 Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ASTM D 4895 : 2015 Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
ASTM D 4745 : 2001 Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials

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