Standard Specification for Fluoropolymer Resin Heat-Shrinkable Tubing for Electrical Insulation

SCOPE
1.1 This specification applies to flexible heat-shrinkable extruded tubing made from tetrafluoroethylene resin, copolymer of tetrafluoroethylene and hexafluoropropylene, and from perfluoroalkoxy resin for use as electrical insulation.  
1.2 The values stated in inch-pound units are to be regarded as the standard except temperature which shall be stated in degrees Celsius. Values in parentheses are for information only.

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ASTM D2902-00 - Standard Specification for Fluoropolymer Resin Heat-Shrinkable Tubing for Electrical Insulation
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: D 2902 – 00
Standard Specification for
Fluoropolymer Resin Heat-Shrinkable Tubing for Electrical
Insulation
This standard is issued under the fixed designation D 2902; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope Sheets 240 to 243: Heat-shrinkable PTFE sleeving
1.1 This specification applies to flexible heat-shrinkable
3. Terminology
extruded tubing made from tetrafluoroethylene resin, copoly-
3.1 Definitions:
mer of tetrafluoroethylene and hexafluoropropylene, and from
3.1.1 For definitions pertaining to electrical insulation, refer
perfluoroalkoxy resin for use as electrical insulation.
to Terminology D 1711.
NOTE 1—This standard is similar but not identical to IEC 60684–3–240
3.1.2 For definitions pertaining to fire standards, refer to
to –243.
Terminology E 176.
1.2 The values stated in inch-pound units are to be regarded
4. Classification
as the standard except temperature which shall be stated in
degreesCelsius.Valuesinparenthesesareforinformationonly.
4.1 Type I—Tubing made from tetrafluoroethylene polymer
(TFE) and capable of being heat shrunk at a temperature of
2. Referenced Documents
327°C (621°F).
2.1 ASTM Standards:
4.2 Type II—Tubing made from a copolymer of tetrafluo-
C 618 Specification for Coal Fly Ash and Raw or Calcined
roethylene and hexafluoropropylene (FEP) and capable of
Natural Pozzolan for Use as a Mineral Admixture in
being heat shrunk at a temperature of 150°C (302°F).
Portland Cement Concrete
4.3 Type III—Tubing made from perfluoroalkoxy resin
D 638 Test Method for Tensile Properties of Plastics
(PFA) and capable of being heat shrunk at a temperature of
D 1711 Terminology Relating to Electrical Insulation
175°C (347°F).
D 2116 Specification for FEP-Fluorocarbon Molding and
5. Ordering Information
Extrusion Materials
D 2671 Test Methods for Heat-Shrinkable Tubing for Elec-
5.1 When ordering to this specification, the purchaser must
trical Use
state the size, and type of the required tubing.
D 3307 Specification for PFA-Fluorocarbon Molding and
6 6. Materials and Manufacture
Extrusion Materials
D 3636 Practice for Sampling and Judging Quality of Solid 6.1 The compound used in the manufacture of this tubing
Electrical Insulating Materials shall be modified fluoropolymer resin, and the finished com-
D 4895 Specification for Polytetrafluoroethylene (PTFE) pound shall be free of all foreign matter other than intended
Resins Produced from Dispersion formulation additives as appropriate.
E 176 Terminology of Fire Standards 6.2 Type I tubing is normally made by paste extrusion.Type
2.2 IEC Standards: II and Type III tubings are normally made by melt extrusion.
60684–3–240 to –243 Flexible insulating sleeving, Part 3, All types are expanded by mechanical means.
7. Chemical and Physical Property Requirements
7.1 The material shall conform to the chemical and physical
This specification is under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and is the direct responsibility of property requirements specified in Table 1.
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
7.2 Every lot of material manufactured should be tested for
Current edition approved Apr. 10, 2000. Published July 2000. Originally
dimensional requirements and restricted shrinkage. Other re-
published as D 2902 – 70 T. Last previous edition D 2902 – 95a.
quirements may be tested less frequently or with a frequency
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 08.01.
agreed upon between seller and purchaser.
Annual Book of ASTM Standards, Vol 10.01.
Annual Book of ASTM Standards, Vol 10.02.
Annual Book of ASTM Standards, Vol 08.02.
7 9
Annual Book of ASTM Standards, Vol 08.03. Available from American National Standards Institute, 11 W. 42nd St., New
Annual Book of ASTM Standards, Vol 04.07. York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 2902
TABLE 1 Chemical and Physical Property Requirements
Requirement
Property
Type I Type II Type III
A
Restricted shrinkage, Procedure B, 2000 V, 10 min no cracking no cracking no cracking
Specific gravity 2.13 to 2.18 2.12 to 2.20 2.13 to 2.20
Longitudinal change, max, % + 20 615 615
Tensile modulus at 200 % elongation, min, psi (MPa) Test Method D 638 2000 (13.8) 1500 (10.3) 2500 (17.3)
2 in./min (50 mm/min)
B 16 16 16
Volume resistivity , ohm-cm, at standard laboratory atmosphere, min 10 10 10
Dielectric breakdown voltage, min kV:
Wall thickness 0.004 to 0.006 in. 8 8 8
0.007 to 0.008 in. 10 10 10
0.009 in. 11.5 11.5 11.5
0.010 to 0.011 in. 12.5 12.5 12.5
0.012 to 0.014 in. 14.6 14.6 14.6
0.015 in. 15 15 15
0.016 to 0.019 in. 16.3 16.3 16.3
0.020 in. and larger 17 17 17
Heat resistance: for 96 h followed by tests for tensile modulus at
200 % elongation, min, psi (MPa)
Type I—350 6 4°C (662 6 7°F) 2000 (13.8)
Type II—250 6 3°C (482 6 6°F) 1500 (10.3)
Type III—275 6 4°C (527 6 7°F) 2500 (17.3)
Low-temperature flexibility, − 556 2°C (−67 6 4°F) no cracking no cracking no cracking
Melting point:
Specification D 4895 327 6 10°C
(6216 20°F)
Specification D 2116 270 6 20°C
(518 6 40°F)
Specification D 3307 endotherm peak, min 300 6 2°C
(572 6 7°F)
Specification D 3307 305 6 3°C
(5816 5°F)
A
For over-expanded sleeving, use a mandrel equal to the enclosable diameters (D + d)/2.
B
See Specification C 618.
8. Dimensional Requirements
8.1 Type I material shall conform to the requirements
specified in Table 3.
D 2902
TABLE 2 Mandrel Sizes for Low-Temperature Flexibility Testing
Nominal Tubing Inside
Diameter (max after Mandrel Diameter,
unrestricted shrinkage)
in. (mm) in. (mm)
0.015 to 0.125 (0.38 to 3.2) 0.3125 6 0.002 (7.956 0.06)
0.126 to 0.250 (3.3 to 6.3) 0.375 6 0.003 (8.066 0.07)
0.251 to 1.000 (6.4 to 26) 0.437 6 0.004 (11.106 0.10)
1.001 to 2.000 (27 to 50) 0.875 6 0.005 (16.13 6 0.13)
2.001 to 3.000 (51 to 75) 1.000 6 0.005 (25.40 6 0.13)
3.001 to 4.000 (76 to 101) 1.125 6 0.005 (28.586 0.13)
TABLE 3 Dimensions, Type I—Lengths for Type I
As Supplied After Unrestrictive Shrinkage
Stock Lengths Packaging
Inside Diameter, min, in. (mm) Inside Diameter, max, in. (mm) Wall Thickness, in. (mm)
Heavy Wall
0.166 (4.22) 0.130 (3.30) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.250 (6.35) 0.193 (4.90) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.333 (8.46) 0.257 (6.53) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.415 (10.54) 0.320 (8.13) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.498 (12.65) 0.383 (9.73) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.580 (14.73) 0.448 (11.38) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.666 (16.92) 0.510 (12.95) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.748 (19.00) 0.572 (14.53) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.830 (21.1) 0.637 (16.18) 0.0306 0.005 (0.76 6 0.13) 3 ft to 1 ft min straight lengths
0.915 (23.2) 0.700 (17.78) 0.0326 0.006 (0.81 6 0.15) 3 ft to 1 ft min straight lengths
1.000 (25.4) 0.764 (19.41) 0.0406 0.007 (1.02 6 0.18) 3 ft to 1 ft min straight lengths
1.170 (29.7) 0.891 (22.6) 0.0456 0.007 (1.14 6 0.18) 3 ft to 1 ft min straight lengths
1.330 (33.8) 1.020 (25.9) 0.0506 0.008 (1.27 6 0.20) 3 ft to 1 ft min straight lengths
Standard Wall
0.045 (1.14) 0.027 (0.69) 0.0126 0.002 (0.30 6 0.05)
0.050 (1.27) 0.032 (0.81) 0.0126 0.002 (0.30 6 0.05) 3 ft min spools
0.055 (1.40) 0.039 (0.99) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.060 (1.52) 0.043 (1.09) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.065 (1.65) 0.049 (1.24) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.076 (1.93) 0.054 (1.37) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.085 (2.16) 0.061 (1.55) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.093 (2.36) 0.067 (1.70) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.110 (2.79) 0.072 (1.83) 0.0166 0.003 (0.41 6 0.08) 3 ft min spools
0.120 (3.05) 0.080 (2.03) 0.0166 0.003 (0.41 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.140 (3.56) 0.089 (2.26) 0.0166 0.003 (0.41 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.160 (4.06) 0.101 (2.56) 0.0166 0.003 (0.41 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.180 (4.57) 0.112 (2.84) 0.0166 0.003 (0.41 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.200 (5.08) 0.124 (3.15) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.210 (5.33) 0.130 (3.30) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.230 (5.84) 0.141 (3.58) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.240 (6.10) 0.158 (4.01) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.290 (7.37) 0.178 (4.52) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.310 (7.87) 0.198 (5.03) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.370 (9.40) 0.224 (5.69) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.390 (9.91) 0.249 (6.32) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.410 (10.41) 0.260 (6.60) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.430 (10.92) 0.278 (7.06) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.450 (11.43) 0.311 (7.90) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.470 (11.94) 0.329 (8.36) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.470 (11.94) 0.347 (8.81) 0.0206 0.004 (0.51 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.470 (11.94) 0.334 (8.48) 0.0256 0.005 (0.64 6 0.13) 3 ft, 1 ft min straight lengths
0.560 (14.22) 0.339 (8.61) 0.0256 0.005 (0.64 6 0.13) 3 ft, 1 ft min straight lengths
0.655 (16.64) 0.462 (11.73) 0.0256 0.005 (0.64 6 0.13) 3 ft, 1 ft min straight lengths
0.750 (19.05) 0.524 (13.31) 0.0256 0.005 (0.64 6 0.13) 3 ft, 1 ft min straight lengths
0.930 (23.6) 0.655 (16.64) 0.0306 0.005 (0.76 6 0.13) 3 ft, 1 ft min straight lengths
1.125 (28.6) 0.786 (20.0) 0.0356 0.006 (0.89 6 0.15) 3 ft, 1 ft min straight lengths
1.310 (33.3) 0.911 (23.1) 0.0356 0.006 (0.89 6 0.15) 3 ft, 1 ft min straight lengths
1.500 (38.1) 1.036 (26.3) 0.0356 0.006 (0.89 6 0.15) 3 ft, 1 ft min straight lengths
Thin Wall
0.034 (0.86) 0.015 (0.38) 0.0096 0.002 (0.23 6 0.05) 3 ft min spools
0.038 (0.97) 0.018 (0.46) 0.0096 0.002 (0.23 6 0.05) 3 ft min spools
0.046 (1.17) 0.022 (0.56) 0.0096 0.002 (0.23 6 0.05) 3 ft min spools
0.050 (1.27) 0.027 (0.69) 0.0106 0.002 (0.25 6 0.05) 3 ft min spools
0.055 (1.40) 0.032 (0.81) 0.0106 0.002 (0.25 6 0.05) 3 ft min spools
0.060 (1.52) 0.039 (0.99) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
0.065 (1.65) 0.043 (1.09) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
D 2902
TABLE 3 Continued
As Supplied After Unrestrictive Shrinkage
Stock Lengths Packaging
Inside Diameter, min, in. (mm) Inside Diameter, max, in. (mm) Wall Thickness, in. (mm)
0.076 (1.93) 0.049 (1.24) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
0.085 (2.16) 0.054 (1.37) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
0.093 (2.36) 0.061 (1.55) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
0.110 (2.79) 0.067 (1.70) 0.0126 0.003 (0.30 6 0.08) 3 ft min spools
0.120 (3.05) 0.072 (1.83) 0.0126 0.003 (0.30 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.140 (3.56) 0.080 (2.03) 0.0126 0.003 (0.30 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.150 (3.81) 0.089 (2.26) 0.0126 0.003 (0.30 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.170 (4.32) 0.101 (2.56) 0.0126 0.003 (0.30 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.191 (4.85) 0.112 (2.84) 0.0126 0.003 (0.30 6 0.08) 3 ft, 2 ft, 1 ft straight lengths
0.205 (5.21) 0.124 (3.15) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.215 (5.46) 0.130 (3.30) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.240 (6.10) 0.141 (3.58) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.270 (6.86) 0.158 (4.01) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.302 (7.67) 0.178 (4.53) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.320 (8.13) 0.198 (5.03) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.370 (9.40) 0.224 (5.69) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.390 (9.91) 0.249 (6.32) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.410 (10.41) 0.260 (6.60) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.430 (10.92) 0.278 (7.06) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.450 (11.43) 0.311 (7.90) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.470 (11.94) 0.329 (8.36) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.470 (11.94) 0.347 (8.81) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.560 (14.22) 0.399 (10.13) 0.0156 0.004 (0.38 6 0.10) 3 ft, 2 ft, 1 ft straight lengths
0.560 (14.22) 0.399 (10.13) 0.0206 0.005 (0.51 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.655 (16.64) 0.462 (11.73) 0.0186 0.005 (0.46 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.655 (16.64) 0.462 (11.73) 0.0206 0.005 (0.51 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.750 (19.05) 0.524 (13.31) 0.0186 0.005 (0.46 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.750 (19.05) 0.524 (13.31) 0.0206 0.005 (0.51 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.930 (23.6) 0.655 (16.64) 0.0206 0.005 (0.51 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
0.930 (23.6) 0.655 (16.64) 0.0256 0.005 (0.64 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
1.125 (28.6) 0.786 (20.0) 0.0256 0.005 (0.64 6 0.13) 3 ft, 2 ft, 1 ft straight lengths
1.125 (28.6) 0.786 (20.0) 0.0306 0.006 (0.76 6 0.15) 3 ft, 2 ft, 1 ft straight lengths
2.0:1 Shrink Factor
0.039 (1) 0.020 (0.50) 0.0106 0.002 (0.25 6 0.05) 4 ft straight lengths
0.059(1.5) 0.030 (0.75) 0.0106 0.002 (0.25 6 0.05) 4 ft straight lengths
0.098 (2.5) 0.049 (1.25) 0.0106 0.002 (0.25 6 0.05) 4 ft straight lengths
0.138 (3.5) 0.069 (1.75) 0.0106 0.002 (0.25 6 0.05) 4 ft straight lengths
0.197 (5) 0.098 (2.5) 0.010 6 0.002 (0.25 6 0.05) 4 ft straight lengths
0.276 (7) 0.138 (3.5) 0.020 6 0.004 (0.50 6 0.10) 4 ft straight lengths
0.394 (10) 0.197 (5.0) 0.020 6 0.004 (0.50 6 0.10) 4 ft straight lengths
0.512 (13) 0.256 (6.5) 0.020 6 0.004 (0.50 6 0.10) 4 ft straight lengths
0.827 (20) 0.394 (10.0) 0.0206 0.004 (0.50 6 0.10) 4 ft straight lengths
1.024 (26) 0.512 (13.0) 0.0306 0.004 (0.75 6 0.10) 4 ft straight lengths
Very Thin Wall
0.050 (1.27) 0.027 (0.69) 0.0066 0.002 (0.15 6 0
...

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