ASTM D3295-20

Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing

ABSTRACT
This specification covers PTFE tubing, miniature beading and spiral cut tubing-manufactured from PTFE resin produced from dispersion. Five groups of PTFE tubing, miniature beading and spiral cut tubing, differentiated by size and type are presented. The groups are further subdivided into classes based on wall thickness: group 01 - tubing based upon the AWG sizes, group 02 - tubing based upon fractional inch sizes, group 03 - tubing based upon inner diameter and wall thickness, group 04 - tubing cut to form spiral wrap, and group 05 - miniature beading. The types are further differentiated in accordance with increasing wall thickness as follows: class 1 - light wall, class 2 - thin wall, class 3 - standard wall, class 4 - chemical tubing, and class 5 - heavy wall. The tubing and miniature beading shall be made of PTFE meeting the requirements prescribed. The melting point, specific gravity, weight loss, tensile strength, elongation, dielectric breakdown voltage, heat resistance, and dimensional stability shall be tested to meet the requirements specified.
SCOPE
1.1 This specification covers PTFE tubing, miniature beading and spiral cut tubing-manufactured from PTFE resin produced from dispersion specified in Specification D4895.  
Note 1: PTFE tube and rod manufactured from resin specified in Specification D4894 are covered in Specification D1710.  
1.2 The values stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are for information only.  
1.3 The following hazard caveat pertains only to the test method portion, Section 8, 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.  
1.4 As PTFE resin produced from dispersion is not a true thermoplastic material, any reuse for the specification referenced above is impossible. However, markets do exist for non-virgin PTFE as additives and fillers.
Note 2: This standard and ISO 13000-1/-2 address some of the same subject matter, but differ in technical content.  
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.

General Information

• Status: Published
• Publication Date: 30-Nov-2020
• ICS: 23.040.20 - Plastics pipes
• 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: D3295 −20
Standard Specification for
1
PTFE Tubing, Miniature Beading and Spiral Cut Tubing
This standard is issued under the fixed designation D3295; 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* D638 Test Method for Tensile Properties of Plastics
D792 Test Methods for Density and Specific Gravity (Rela-
1.1 This specification covers PTFE tubing, miniature bead-
tive Density) of Plastics by Displacement
ing and spiral cut tubing-manufactured from PTFE resin
D883 Terminology Relating to Plastics
produced from dispersion specified in Specification D4895.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
NOTE 1—PTFE tube and rod manufactured from resin specified in
tics
Specification D4894 are covered in Specification D1710.
D1675 Test Methods for Polytetrafluoroethylene Tubing
1.2 The values stated in SI units are to be regarded as
D1708 Test Method forTensile Properties of Plastics by Use
standard. The inch-pound units given in parentheses are for
of Microtensile Specimens
information only.
D1710 Specification for Extruded Polytetrafluoroethylene
(PTFE) Rod, Heavy Walled Tubing and Basic Shapes
1.3 The following hazard caveat pertains only to the test
D3892 Practice for Packaging/Packing of Plastics
method portion, Section 8, of this specification: This standard
D4894 Specification for Polytetrafluoroethylene (PTFE)
does not purport to address all of the safety concerns, if any,
Granular Molding and Ram Extrusion Materials
associated with its use. It is the responsibility of the user of this
D4895 Specification for Polytetrafluoroethylene (PTFE)
standard to establish appropriate safety, health, and environ-
Resin Produced From Dispersion
mental practices and determine the applicability of regulatory
3
2.2 ISO Standards:
limitations prior to use.
ISO 13000-1 Plastics—Polytetrafluoroethylene (PTFE)
1.4 As PTFE resin produced from dispersion is not a true
Semi-Finished Products, Part 1: Requirements and Desig-
thermoplastic material, any reuse for the specification refer-
nation
enced above is impossible. However, markets do exist for
ISO 13000-2 Plastics—Polytetrafluoroethylene (PTFE)
non-virgin PTFE as additives and fillers.
NOTE 2—This standard and ISO 13000-1⁄-2 address some of the same
Semi-Finished Products, Part 2: Preparation ofTest Speci-
subject matter, but differ in technical content.
mens and Determination of Properties
1.5 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.1 Definitions—The terminology given in Terminologies
Development of International Standards, Guides and Recom-
D883 and D1600 is applicable to this specification.
mendations issued by the World Trade Organization Technical
3.2 Description of Term Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.2.1 lot—asingleproductionrun,orauniformblendoftwo
or more production runs.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Classification
D618 Practice for Conditioning Plastics for Testing
4.1 This specification provides for five groups of PTFE
tubing, miniature beading and spiral cut tubing, differentiated
bysizeandtype.Thegroupsarefurthersubdividedintoclasses
1
This specification is under the jurisdiction of ASTM Committee D20 on
based on wall thickness.
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials (Section D20.15.12).
4.1.1 Group 01—Tubing based upon the American Wire
Current edition approved Dec. 1, 2020. Published December 2020. Originally
Gage (AWG) sizes.
approved in 1974. Last previous edition approved in 2015 as D3295 - 15. DOI:
4.1.2 Group 02—Tubing based upon fractional inch sizes.
10.1520/D3295-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. 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

---------------------- Pa
...

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: D3295 − 15 D3295 − 20
Standard Specification for
1
PTFE Tubing, Miniature Beading and Spiral Cut Tubing
This standard is issued under the fixed designation D3295; 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 PTFE tubing, miniature beading and spiral cut tubing-manufactured from PTFE resin produced from
dispersion specified in Specification D4895.
NOTE 1—PTFE tube and rod manufactured from resin specified in Specification D4894 are covered in Specification D1710.
1.2 The values stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are for information only.
1.3 The following hazard caveat pertains only to the test method portion, Section 8, 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.
1.4 As PTFE resin produced from dispersion is not a true thermoplastic material, any reuse for the specification referenced above
is impossible. However, markets do exist for non-virgin PTFE as additives and fillers.
NOTE 2—There is no knownThis standard and ISO 13000-1 ISO equivalent to this standard.⁄-2 address some of the same subject matter, but differ in
technical content.
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
D1600 Terminology for Abbreviated Terms Relating to Plastics
D1675 Test Methods for Polytetrafluoroethylene Tubing
D1708 Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
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 Sept. 1, 2015Dec. 1, 2020. Published September 2015December 2020. Originally approved in 1974. Last previous edition approved in 20112015
as D3295 - 06D3295 - 15.(2011). DOI: 10.1520/D3295-15.10.1520/D3295-20.
2
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 ----------------------
D3295 − 20
D1710 Specification for Extruded Polytetrafluoroethylene (PTFE) Rod, Heavy Walled Tubing and Basic Shapes
D3892 Practice for Packaging/Packing of Plastics
D4894 Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials
D4895 Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion
3
2.2 ISO Standards:
ISO 13000-1 Plastics—Polytetrafluoroethylene (PTFE) Semi-Finished Products, Part 1: Requirements and Designation
ISO 13000-2 Plastics—Polytetrafluoroethylene (PTFE) Semi-Finished Products, Part 2: Preparation of Test Specimens and
Determination of Properties
3. Terminology
3.1 Definitions—The terminology given in Terminologies D883 and D1600 is applicable to this specification.
3.2 Description of Term Specific to This Standard:
3.2.1 lot—a single production run, or a uniform blend of two or more production runs.
4. Classification
4.1 This specification provides for five groups of PTFE tubing, miniature beading and spiral cut tubing, differentiated by size and
type. The groups are further
...