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ASTM D3295-06

(Specification)

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

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 D 4895.
Note 1—PTFE tube and rod manufactured from resin specified in Specification D 4894 are covered in Specification D 1710.  
1.2 The values stated in SI units are to be regarded as standard. The inch-pound units given in brackets are for information only.
The following hazard caveat pertains only to the test method portion, Section , 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.
1.3 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 currently no published ISO standard relating to this specification.

General Information

Status
Historical
Publication Date
31-Mar-2006
ICS
23.040.20 - Plastics pipes
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D3295-01 - Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
Effective Date
01-Apr-2006
Replaced By
ASTM D3295-06(2011) - Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
Effective Date
01-Feb-2011
Referred By
ASTM D4894-19 - Standard Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials
Effective Date
01-Apr-2006

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ASTM D3295-06 - Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut TubingASTM D3295-06 - Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
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ASTM D3295-06 - Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing
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Standards Content (Sample)

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 – 06
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 Department of Defense.
1. Scope* D1600 Terminology for Abbreviated Terms Relating to
Plastics
1.1 This specification covers PTFE tubing, miniature bead-
D1675 Test Methods for Polytetrafluoroethylene Tubing
ing and spiral cut tubing-manufactured from PTFE resin
D1708 Test Method for Tensile Properties of Plastics by
produced from dispersion specified in Specification D4895.
Use of Microtensile Specimens
NOTE 1—PTFE tube and rod manufactured from resin specified in
D1710 Specification for Extruded Polytetrafluoroethylene
Specification D4894 are covered in Specification D1710.
(PTFE) Rod, Heavy Walled Tubing and Basic Shapes
1.2 The values stated in SI units are to be regarded as
D3892 Practice for Packaging/Packing of Plastics
standard. The inch-pound units given in brackets are for
D4894 Specification for Polytetrafluoroethylene (PTFE)
information only.
Granular Molding and Ram Extrusion Materials
1.3 The following hazard caveat pertains only to the test
D4895 Specification for Polytetrafluoroethylene (PTFE)
method portion, Section 8, of this specification: This standard
Resin Produced From Dispersion
does not purport to address all of the safety concerns, if any,
3. Terminology
associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices
3.1 Definitions:
and determine the applicability of regulatory limitations prior
3.1.1 The terminology given in Terminologies D883 and
to use.
D1600 is applicable to this specification.
1.4 As PTFE resin produced from dispersion is not a true
3.2 Description of Term Specific to This Standard:
thermoplastic material, any reuse for the specification refer-
3.2.1 lot—a single production run, or a uniform blend of
enced above is impossible. However, markets do exist for
two or more production runs.
non-virgin PTFE as additives and fillers.
4. Classification
NOTE 2—There is currently no published ISO standard relating to this
4.1 This specification provides for five groups of PTFE
specification.
tubing, miniature beading and spiral cut tubing, differentiated
2. Referenced Documents
bysizeandtype.Thegroupsarefurthersubdividedintoclasses
2
based on wall thickness.
2.1 ASTM Standards:
4.1.1 Group 01—Tubing based upon the American Wire
D618 Practice for Conditioning Plastics for Testing
Gage (AWG) sizes.
D638 Test Method for Tensile Properties of Plastics
4.1.2 Group 02—Tubing based upon fractional inch sizes.
D792 Test Methods for Density and Specific Gravity (Rela-
4.1.3 Group 03—Tubing specified by inner diameter and
tive Density) of Plastics by Displacement
wall thickness in Table 6 referred to as “Custom or Metric.”
D883 Terminology Relating to Plastics
4.1.4 Group 04—Tubing cut to form spiral wrap as in Table
7.
1
This specification is under the jurisdiction of ASTM Committee D20 on
4.1.5 Group 05—Miniature beading having diameters as
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
listed in Table 8.
Materials (Section D20.15.12).
4.2 The types are further differentiated in accordance with
Current edition approved April 1, 2006. Published June 2006. Originally
increasing wall thickness as follows:
approved in 1974. Last previous edition approved in 2001 as D3295 - 01. DOI:
10.1520/D3295-06.
4.2.1 Class 1—Tubing having walls tabulated in Table 1
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
listed as light wall.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.2 Class 2—Tubing having walls of greater thickness
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. than Class 1 listed as thin wall.
*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 – 06
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] 0.15 [0.006] 0.10 [0.004] 0.20 [0.008]
26 0.41 [0.016] 0.53 [0.021] 0.15 [0.006] 0.10 [0.004] 0.20 [0.008]
24 0.51 [0.020] 0.66 [0.0
...

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4.1 This practice provides for determining the physical dimensions of fiberglass pipe and fittings. This practice is suitable for determination of dimensional compliance with product specifications.
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1.3 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
Note 1: There is no known ISO equivalent to this standard.  
1.4 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.  
1.5 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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