ASTM D2647-94(2000)e1
(Specification)Standard Specification for Crosslinkable Ethylene Plastics
Standard Specification for Crosslinkable Ethylene Plastics
SCOPE
1.1 This specification covers a general classification system for crosslinkable ethylene plastics compounds (Note 1). The requirements specified herein are not necessarily applicable for use as criteria in determining suitability for the end use of a fabricated product.
Note 1--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 parentheses are for information only.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 7, 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.
Note 2--There is no similiar or equivalent ISO standard.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 2647 – 94 (Reapproved 2000)
Standard Specification for
Crosslinkable Ethylene Plastics
This standard is issued under the fixed designation D 2647; 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.
e NOTE—Sections 2 and 3 were corrected editorially in November 2000.
1. Scope 2. Referenced Documents
1.1 This specification covers a general classification system 2.1 ASTM Standards:
for crosslinkable ethylene plastics compounds (Note 1). The D 150 Test Methods for A-C Loss Characteristics and
requirements specified herein are not necessarily applicable for Permittivity (Dielectric Constant) of Solid Electrical Insu-
use as criteria in determining suitability for the end use of a lation
fabricated product. D 257 Test Methods for D-C Resistance or Conductance of
Insulating Materials
NOTE 1—It is to be noted that this specification describes materials that
D 573 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
D 618 Practice for Conditioning Plastics for Testing
parameters used for their classification and specification will usually be
carried out after curing has been effected.
D 638 Test Method for Tensile Properties of Plastics
D 746 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
D 883 Terminology Relating to Plastics
importance in applications, and electrical types in which
D 991 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.
D 1043 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
D 1898 Practice for Sampling of Plastics
after aging, apparent modulus of rigidity, and brittleness
D 2765 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-
D 3892 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. The values given in parentheses are for information
tion by Attributes (Obsoleted 1995)
only.
1.6 The following safety hazards caveat pertains only to the
3. Terminology
test methods portion, Section 7, of this specification: This
3.1 Definitions: For definitions of plastics terms used in this
standard does not purport to address all of the safety concerns,
specification, see Terminology D 883.
if any, associated with its use. It is the responsibility of the user
3.2 Abbreviations:Units, Symbols, and Abbreviations—For
of this standard to establish appropriate safety and health
units, symbols, and abbreviations used in this specification see
practices and determine the applicability of regulatory limita-
IEEE/ASTM SI-10.
tions prior to use.
NOTE 2—There is no similiar or equivalent ISO standard.
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
This specification is under the jurisdiction of ASTM Committee D20 on the ASTM website.
Plastics and is the direct responsibility of Subcommittee D20.12 on Olefin Plastics. Withdrawn.
Current edition approved Feb. 15, 1994. Published April 1994. Originally AvailablefromDefenseAutomationandProductionService,Bldg.4SectionD,
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published as D 2647 – 67 T. Last previous edition D 2647 – 80 (1987) . 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
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D 2647 – 94 (2000)
4. Classification Practice D 618, for those tests where conditioning is required
and in all cases of disagreement.
4.1 Classification System—Table 1 and Table 2 provide a
classification system for these compounds so that the relations 8.2 Test Conditions—Conduct tests in the standard labora-
among them may be delineated and those that are commer- tory atmosphere of 23 6 2°C (73.4 6 3.6°F) and 50 6 5%
cially available may be specified readily. It is not the intent to
relative humidity, unless otherwise specified in the test meth-
indicate that all the combinations of properties possible are
ods or in this specification.
representedbycommercialproductsorthattheyaretechnically
8.3 Ultimate Elongation—Test Method D 638, using three
possible at the present state of knowledge.
Type IVspecimens tested at 500 mm/min (20.0 in./min). If any
4.2 Types—This specification covers two general types of
value differs significantly from the other two, two additional
compounds: Type I—Mechanical types (Table 1), and Type
samples shall be tested, making a total of five specimens.
II—Electrical types (Table 2).
8.4 Elongation Retention After Aging— Age three or five
4.3 Grades—This specification covers as many grades of
test specimens in accordance with the number evaluated in 8.3,
compounds as may be selected from the possible combinations
conforming to Type IV of Test Method D 638, in a circulating
of requirements in Table 1 and Table 2. A grade is designated
air oven at either 121 6 2°C (250 6 3.6°F) or 150 6 2°C (302
by first indicating the type (I or II) followed by cell numbers
63.6°F)inaccordancewithTestMethodD 573,sothatthehot
for each property in the order in which they are listed in the
air circulates freely around each specimen for 7 days (168 h).
tables. Where there is no interest in a property, a “0” is entered
in place of a cell number.
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