ASTM D2903-93(1998)

Standard Specification for Crosslinked Chlorinated Polyolefin Heat-Shrinkable Tubing for Electrical Insulation

SCOPE
1.1 This specification covers flexible crosslinked chlorinated polyolefin heat-shrinkable tubing used for electrical insulating purposes. It is supplied in an expanded form and will shrink to the specified diameter when heated.
1.2 The values stated in inch-pound units are to be regarded as the standard accept for temperature, which is stated in degrees Celsius. SI values in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-Nov-1998
• ICS: 29.035.20 - Plastics and rubber insulating materials
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

Relations

• Replaced By: ASTM D2903-03 - Standard Specification for Crosslinked Chlorinated Polyolefin Heat-Shrinkable Tubing for Electrical Insulation
• Effective Date: 10-Mar-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 2903 – 93 (Reapproved 1998) An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Crosslinked Chlorinated Polyolefin Heat-Shrinkable Tubing
for Electrical Insulation
This standard is issued under the fixed designation D 2903; 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 3. Terminology
1.1 This specification covers flexible crosslinked chlori- 3.1 Definitions: For definitions of terms used in this stan-
nated polyolefin heat-shrinkable tubing used for electrical dard, refer to Terminology D 1711.
insulating purposes. It is supplied in an expanded form and will 3.2 Definitions of Terms Specific to This Standard:
shrink to the specified diameter when heated. 3.2.1 chlorinated polyolefin, n—a polymer or polymer
1.2 The values stated in inch-pound units are to be regarded blend based on chlorinated polyolefin(s), chlorinated olefin
as the standard accept for temperature, which is stated in copolymer(s) or chlorinated polybutadiene polymer(s).
degrees Celsius. SI values in parentheses are for information
4. Classification
only.
4.1 Type I—Normal operating temperature.
2. Referenced Documents
4.2 Type II—Extended operating temperature.
2.1 ASTM Standards:
5. Ordering Information
D 412 Test Methods for Vulcanized Rubber and Thermo-
5.1 When ordering to this specification the purchaser must
plastic Rubbers and Thermoplastic Elastomers—Tension
D 1711 Terminology Relating to Electrical Insulation state the type, class, and size of the tubing required.
D 2671 Test Methods for Heat-Shrinkable Tubing for Elec-
6. Materials and Manufacture
trical Use
6.1 The compound used in the manufacture of this heat-
D 3636 Practice for Sampling and Judging Quality of Solid
shrinkable tubing shall be based on chlorinated polyolefin as
Electrical Insulating Materials
defined in Section 3, Terminology. The finished compound
2.2 Military Standards:
shall be free of foreign matter other than antioxidants, flame
MIL-H-5606 Hydraulic Fluid Petroleum Base, Aircraft,
retardants, processing aids, crosslinking agents, pigments or
Missile and Ordnance
other additives as appropriate.
MIL-T-5624 Turbine Fuel, Aviation, Grades JP4 and JP5
6.2 The tubing shall be extruded, crosslinked and then
MIL-L-7808 Lubrication Oil, Aircraft, Turbine Engine,
expanded to the required dimensions.
Synthetic Base
MIL-L-23699 Lubrication Oil, Aircraft, Turbine Engines,
7. Chemical Property Requirements
Synthetic Base
7.1 The material shall conform to the chemical requirements
MIL-A-8243 Anti-Icing and De-Icing Defrosting Fluid
specified in Tables 1 and 2.
MIL-G-5572 Fuel, Aviation, Grades 100 and 130
7.2 Every lot of material manufactured requires testing for
2.3 Federal Standard:
flammability, but the other chemical property requirements
SS-S-550 Sodium Chloride, Technical, for Water Softening
may be tested less frequently or with a frequency agreed upon
Units
by the purchaser and seller.
8. Other Property Requirements
8.1 The material shall conform to the mechanical, thermal,
This specification is under the jurisdiction of ASTM Committee D-9 on
and electrical requirements of Table 3.
Electrical and Electronic Insulating Materials and is the direct responsibility of
8.2 Every lot of material manufactured shall be tested for
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
heat shock, tensile strength, and elongation, but other require-
Current edition approved Oct. 15, 1993. Published December 1993. Originally
published as D 2903 – 70 T. Last previous edition D 2903 – 89. ments may be tested less frequently or with a frequency agreed
Annual Book of ASTM Standards, Vol 09.01.
upon by the purchaser and seller.
Annual Book of ASTM Standards, Vol 10.01.
Annual Book of ASTM Standards, Vol 10.02.
Available from Naval Publications and Forms Center, 5801 Tabor Ave.,
Philadelphia, PA 19120.
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D 2903
TABLE 1 Sampling Table for Lot Acceptance Tests
12. Tests and Retests
Sampling Unit
12.1 If the results of any test do not conform to the
Require- Inspection
Property AQL of Sleeving, ft
ment Level
requirements prescribed in this specification, make two addi-
(m)
tional tests on different specimens from the same lot.
Inside diameter as supplied Table 4 S-3 1.0 4 (1.2)
12.2 If the results of either of the two additional tests do not
Inside diameter after unre- Table 4 S-3 1.0 4 (1.2)
stricted shrinkage
conform to the requirements, the lot of material may be
Wall thickness after shrinkage Table 4 S-3 1.0 4 (1.2)
rejected at the option of the purchaser. A notice of nonconfor-
Longitudinal change Table 4 S-2 1.0 4 (1.2)
mance of material based on tests made according to this
Straight length size, min 16.1 herein S-3 1.0 single straight
length
specification should be reported to the manufacturer promptly
Workmanship 10.1 herein I 4.0 4 (1.2)
and in writing.
12.3 Rejected tubing may be replaced or reworked to
TABLE 2 Chemical Requirements
correct the nonconformances and resubmitted for inspection.
Before resubmitting, furnish to the inspector full particulars
Requirement
Property
concerning previous rejection and action taken to correct the
Type I Type II
nonconformances.
Corrosion
Method A (copper mirror) 16 h at 150 6 2°C no corrosion no corrosion
13. Test Methods
(302 6 4°F)
Method B (copper contact) 168 h at 121 no pitting or no pitting or
13.1 Use the test methods described in Test Methods
6 2°C (250 6 4°F) blackening blackening
D 2671 unless stated otherwise in Table 2 or Table 3.
Followed by test for:
Ultimate elongation, min, %, 150
13.2 To recover heat-shrinkable tubing in this specification,
Solvent resistance:
use a time of 10 min and a temperature of 175 6 1°C (347 6
Type I—Immerse 24 h at 246 3°C (75
2°F).
6 5.4°F)
Type II—Immerse 24 h at 50 6 2°C (122 6
4°F)
14. Inspection
MIL-T-5624—Grade JP-4 fuel
14.1 The manufacturer or purchaser, or both, shall have
MIL-L-7808—Lubricating oil
MIL-H
...