ASTM D2647-05a

Standard Specification for Crosslinkable Ethylene Plastics

ABSTRACT
This specification covers a general classification system for crosslinkable ethylene plastics compounds. Two types of compounds are covered, namely, mechanical types in which mechanical strength properties are of prime importance in applications, and electrical types in which electrical insulating or conducting properties also are of prime importance in applications. These compounds shall be classified as: Type I; Type II; and Grade A. Tests shall be performed to determine the properties in accordance with the following test methods: conditioning; test conditions; ultimate elongation; elongation retention after aging; apparent modulus of rigidity; brittleness temperature; dielectric constant; dissipation factor; and degree of crosslinking.
SCOPE
1.1 This specification covers a general classification system for crosslinkable ethylene plastics compounds (Note 0). The requirements specified herein are not necessarily applicable for use as criteria in determining suitability for the end use of a fabricated product.Note 0
It is to be noted that this specification describes materials that are available commercially in their uncrosslinked form. Therefore, they are crosslinkable compounds despite the fact that measurement of the parameters used for their classification and specification will usually be carried out after curing has been effected.
1.2 Two types of compounds are covered, namely, mechanical types in which mechanical strength properties are of prime importance in applications, and electrical types in which electrical insulating or conducting properties also are of prime importance in applications.
1.3 The parameters used to classify and specify the mechanical types are ultimate elongation, elongation retention after aging, apparent modulus of rigidity, and brittleness temperature.
1.4 The parameters used to classify and specify the electrical types are ultimate elongation, elongation retention after aging, apparent modulus of rigidity, brittleness temperature, dielectric constant, dissipation factor, and volume resistivity.
1.5 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only.
The following safety hazards caveat pertains only to the test methods portion, Section , of this specification: This specification 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 specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 2
There is no similar or equivalent ISO standard.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaces: ASTM D2647-05 - Standard Specification for Crosslinkable Ethylene Plastics
• Effective Date: 01-Jul-2005
• Replaced By: ASTM D2647-09 - Standard Specification for Crosslinkable Ethylene Plastics
• Effective Date: 01-Dec-2009
• Referred By: ASTM D3004-08(2020) - Standard Specification for Crosslinked and Thermoplastic Extruded Semi-Conducting, Conductor, and Insulation Shielding Materials
• Effective Date: 01-Jul-2005

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: D2647 – 05a
Standard Specification for
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Crosslinkable Ethylene Plastics
This standard is issued under the fixed designation D2647; 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.
1. Scope* 2. Referenced Documents
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1.1 This specification covers a general classification system 2.1 ASTM Standards:
for crosslinkable ethylene plastics compounds (Note 1). The D150 Test Methods for AC Loss Characteristics and Per-
requirements specified herein are not necessarily applicable for mittivity (Dielectric Constant) of Solid Electrical Insula-
use as criteria in determining suitability for the end use of a tion
fabricated product. D257 Test Methods for DC Resistance or Conductance of
Insulating Materials
NOTE 1—It is to be noted that this specification describes materials that
D573 Test Method for Rubber—Deterioration in an Air
are available commercially in their uncrosslinked form. Therefore, they
Oven
are crosslinkable compounds despite the fact that measurement of the
D618 Practice for Conditioning Plastics for Testing
parameters used for their classification and specification will usually be
carried out after curing has been effected.
D638 Test Method for Tensile Properties of Plastics
D746 Test Method for Brittleness Temperature of Plastics
1.2 Two types of compounds are covered, namely, mechani-
and Elastomers by Impact
cal types in which mechanical strength properties are of prime
D883 Terminology Relating to Plastics
importance in applications, and electrical types in which
D991 Test Method for Rubber Property—Volume Resistiv-
electrical insulating or conducting properties also are of prime
ity Of Electrically Conductive and Antistatic Products
importance in applications.
D1043 Test Method for Stiffness Properties of Plastics as a
1.3 The parameters used to classify and specify the me-
Function of Temperature by Means of a Torsion Test
chanical types are ultimate elongation, elongation retention
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D1898 Practice for Sampling of Plastics
after aging, apparent modulus of rigidity, and brittleness
D2765 Test Methods for Determination of Gel Content and
temperature.
Swell Ratio of Crosslinked Ethylene Plastics
1.4 The parameters used to classify and specify the electri-
D3892 Practice for Packaging/Packing of Plastics
cal types are ultimate elongation, elongation retention after
IEEE/ASTM SI-10 Standard for Use of the International
aging, apparent modulus of rigidity, brittleness temperature,
System of Units (SI): (The Modernized Metric System)
dielectric constant, dissipation factor, and volume resistivity.
2.2 Military Standard:
1.5 The values stated in SI units are to be regarded as the
MIL-STD-105 Sampling Procedures and Tables for Inspec-
standard.Thevaluesgiveninbracketsareforinformationonly.
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tion by Attributes (Obsolete 1995)
1.6 The following safety hazards caveat pertains only to the
test methods portion, Section 7, of this specification: This
3. Terminology
specification does not purport to address all of the safety
3.1 Definitions: For definitions of plastics terms used in this
concerns, if any, associated with its use. It is the responsibility
specification, see Terminology D883.
of the user of this specification to establish appropriate safety
3.2 Abbreviations:Units, Symbols, and Abbreviations—For
and health practices and determine the applicability of regu-
units, symbols, and abbreviations used in this specification see
latory limitations prior to use.
IEEE/ASTM SI-10IEEE/ASTM SI-10.
NOTE 2—There is no similar or equivalent ISO standard.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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This specification is under the jurisdiction of ASTM Committee D20 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Standards volume information, refer to the standard’s Document Summary page on
Materials. the ASTM website.
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Current edition approved July 1, 2005. Published July 2005. Originally approved Withdrawn.
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in 1967. Last previous edition approved in 2005 as D2647 - 05. DOI: 10.1520/ AvailablefromDefenseAutomationandProductionService,Bldg.4SectionD,
D2647-05A. 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
*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.
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D2647 – 05a
4. Classification 8.2 Test Conditions—Conduct tests in the standard labora-
tory atmosphere of 2
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