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 and health 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 known ISO equivalent to this standard.

General Information

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Publication Date
31-Aug-2015
Technical Committee
Current Stage
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D3295 −15
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* D1708 Test Method forTensile Properties of Plastics by Use
of Microtensile Specimens
1.1 This specification covers PTFE tubing, miniature bead-
D1710 Specification for Extruded Polytetrafluoroethylene
ing and spiral cut tubing-manufactured from PTFE resin
(PTFE) Rod, Heavy Walled Tubing and Basic Shapes
produced from dispersion specified in Specification D4895.
D3892 Practice for Packaging/Packing of Plastics
NOTE 1—PTFE tube and rod manufactured from resin specified in
D4894 Specification for Polytetrafluoroethylene (PTFE)
Specification D4894 are covered in Specification D1710.
Granular Molding and Ram Extrusion Materials
1.2 The values stated in SI units are to be regarded as
D4895 Specification for Polytetrafluoroethylene (PTFE)
standard. The inch-pound units given in parentheses are for
Resin Produced From Dispersion
information only.
3. Terminology
1.3 The following hazard caveat pertains only to the test
method portion, Section 8, of this specification: This standard
3.1 Definitions—The terminology given in Terminologies
does not purport to address all of the safety concerns, if any,
D883 and D1600 is applicable to this specification.
associated with its use. It is the responsibility of the user of this
3.2 Description of Term Specific to This Standard:
standard to establish appropriate safety and health practices
3.2.1 lot—asingleproductionrun,orauniformblendoftwo
and determine the applicability of regulatory limitations prior
or more production runs.
to use.
1.4 As PTFE resin produced from dispersion is not a true
4. Classification
thermoplastic material, any reuse for the specification refer-
enced above is impossible. However, markets do exist for
4.1 This specification provides for five groups of PTFE
non-virgin PTFE as additives and fillers.
tubing, miniature beading and spiral cut tubing, differentiated
NOTE 2—There is no known ISO equivalent to this standard.
bysizeandtype.Thegroupsarefurthersubdividedintoclasses
based on wall thickness.
2. Referenced Documents
4.1.1 Group 01—Tubing based upon the American Wire
2
2.1 ASTM Standards:
Gage (AWG) sizes.
D618 Practice for Conditioning Plastics for Testing
4.1.2 Group 02—Tubing based upon fractional inch sizes.
D638 Test Method for Tensile Properties of Plastics
4.1.3 Group 03—Tubing specified by inner diameter and
D792 Test Methods for Density and Specific Gravity (Rela-
wall thickness in Table 6 referred to as “Custom or Metric.”
tive Density) of Plastics by Displacement
4.1.4 Group 04—Tubing cut to form spiral wrap as in Table
D883 Terminology Relating to Plastics
7.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
4.1.5 Group 05—Miniature beading having diameters as
tics
listed in Table 8.
D1675 Test Methods for Polytetrafluoroethylene Tubing
4.2 The types are further differentiated in accordance with
increasing wall thickness as follows:
1
4.2.1 Class 1—Tubing having walls tabulated in Table 1
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
listed as light wall.
Materials (Section D20.15.12).
4.2.2 Class 2—Tubing having walls of greater thickness
Current edition approved Sept. 1, 2015. Published September 2015. Originally
than Class 1 listed as thin wall.
approved in 1974. Last previous edition approved in 2011 as D3295 - 06(2011).
DOI: 10.1520/D3295-15.
4.2.3 Class 3—Tubing having walls tabulated in Table 2
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
listed as standard wall.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.4 Class 4—Tubing having walls tabulated in Table 3
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. listed as chemical tubing.
*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 ----------------------
D3295−15
TABLE 1 Dimensions and Tolerances for Group 01 PTFE Tubing, mm (in.) (Classes 1 and 2)
Class 1
Inside Diameter
AWG Size
Light Wall
Grade
min max nom min max
30 0.25 (0.010) 0.38 (0.015) 0.15 (0.006) 0.10 (0.004) 0.20 (0.008)
28 0.33 (0.013) 0.46 (0.018)
...

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 − 06 (Reapproved 2011) D3295 − 15
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 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 and health 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 known ISO equivalent to this standard.
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
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. 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 subdivided into classes based on wall thickness.
4.1.1 Group 01—Tubing based upon the American Wire Gage (AWG) sizes.
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 Feb. 1, 2011Sept. 1, 2015. Published March 2011September 2015. Originally approved in 1974. Last previous edition approved in 20062011
as D3295 - 06.D3295 - 06(2011). DOI: 10.1520/D3295-06R11.10.1520/D3295-15.
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.
*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 − 15
4.1.2 Group 02—Tubing based upon fractional inch sizes.
4.1.3 Group 03—Tubing specified by inner diameter and wall thickness in Table 6 referred to as “Custom or Metric.”
4.1.4 Group 04—Tubing cut to form spiral wrap as in Table 7.
4.1.5 Group 05—Miniature beading having diameters as listed in Table 8.
4.2 The types are further differentiated in accordance with increasing wall thickness as follows:
4.2.1 Class 1—Tubing having walls tabulated in Table 1 listed as light wall.
4.2.2 Class 2—Tubing having walls of greater thickness than Class 1 listed as thin wall.
4.2.3 Class 3—Tubing having
...

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