ASTM D1248-12
(Specification)Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
ABSTRACT
This specification provides for the identification of polyethylene plastics extrusion materials for wire and cable in such a manner that the seller and the purchaser can agree on the acceptability of different commercial lots or shipments. The polyethylene plastics are identified primarily on the basis of two characteristics, namely, density and flow rate (previously identified as melt index). The former is the criterion for assignment as to type which are as follows: Type 0,Type I, Type II, Type III, and Type IV, the latter for designation as to category which are: Category 1,Category 2, Category 3,Category 4, and Category 5. Other attributes important for certain applications are covered by three general classes and by specifying in greater detail, by grades, a minimum number of key characteristics covered too broadly or not at all by the type, class, and category designations. Each of five types and categories is subdivided into four classes according to composition and use as follows: Class A, Class B, Class C, and Class D. In addition, the materials can be classified into different grades namely Grade E1, Grade E2, Grade E3, Grade E4, Grade E5, Grade E6, Grade E7, Grade E8, Grade E9, and Grade E10. The extrusion material for wire and cable shall be polyethylene plastic in the form of powder, granules, or pellets. The extrusion materials for wire and cable shall be as uniform in composition and size and as free of contamination as can be achieved by good manufacturing practice. Different tests shall be conducted in order to determine the following physical properties of extrusion materials: tensile stress, elongation, brittleness temperature, environmental stress-crack resistance, thermal stress-crack resistance without cracking, dissipation factor before and after milling, dielectric constant, volume resistivity, water immersion stability, absorption coefficient, weatherability for colored materials, and carbon content.
SCOPE
1.1 This specification provides for the identification of polyethylene plastics extrusion materials for wire and cable in such a manner that the seller and the purchaser can agree on the acceptability of different commercial lots or shipments. The tests involved in this specification are intended to provide information for identifying materials according to the types, classes, categories, and grades covered. It is not the function of this specification to provide specific engineering data for design purposes.
1.2 This specification does not allow for the use of recycled plastics (see Note 3).
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains only to the test method portion, Section 12, 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 1—There is no known ISO equivalent to this standard.
Note 2—This standard has undergone major revision from the reapproval of 1989 and now covers only polyethylene for wire and cable applications. For information regarding molding and extrusion materials, see Specification D4976. For information regarding plastic pipe materials, see Specification D3350.
Note 3—See Guide D7209and 3.1.2 of this standard for information and definitions related to recycled plastics.
General Information
Relations
Buy Standard
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:D1248 −12
Standard Specification for
Polyethylene Plastics Extrusion Materials for Wire and
1
Cable
This standard is issued under the fixed designation D1248; 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* 2. Referenced Documents
2
1.1 This specification provides for the identification of 2.1 ASTM Standards:
D150 Test Methods forAC Loss Characteristics and Permit-
polyethylene plastics extrusion materials for wire and cable in
suchamannerthatthesellerandthepurchasercanagreeonthe tivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of
acceptability of different commercial lots or shipments. The
tests involved in this specification are intended to provide Insulating Materials
D618 Practice for Conditioning Plastics for Testing
information for identifying materials according to the types,
classes, categories, and grades covered. It is not the function of D638 Test Method for Tensile Properties of Plastics
D746 Test Method for Brittleness Temperature of Plastics
this specification to provide specific engineering data for
design purposes. and Elastomers by Impact
D792 Test Methods for Density and Specific Gravity (Rela-
1.2 This specification does not allow for the use of recycled
tive Density) of Plastics by Displacement
plastics (see Note 3).
D1238 Test Method for Melt Flow Rates of Thermoplastics
1.3 The values stated in SI units are to be regarded as the
by Extrusion Plastometer
standard. The values given in parentheses are mathematical
D1505 Test Method for Density of Plastics by the Density-
conversions to inch-pound units that are provided for informa-
Gradient Technique
tion only and are not considered standard.
D1531 Test Methods for Relative Permittivity (Dielectric
1.4 The following safety hazards caveat pertains only to the Constant) and Dissipation Factor by Fluid Displacement
test method portion, Section 12, of this specification: This Procedures
standard does not purport to address all of the safety concerns, D1603 Test Method for Carbon Black Content in Olefin
if any, associated with its use. It is the responsibility of the user Plastics
of this standard to establish appropriate safety and health D1693 Test Method for Environmental Stress-Cracking of
practices and determine the applicability of regulatory limita- Ethylene Plastics
tions prior to use. D2565 Practice for Xenon-Arc Exposure of Plastics In-
tended for Outdoor Applications
NOTE 1—There is no known ISO equivalent to this standard.
D2633 Test Methods for Thermoplastic Insulations and
NOTE 2—This standard has undergone major revision from the reap-
Jackets for Wire and Cable
proval of 1989 and now covers only polyethylene for wire and cable
applications. For information regarding molding and extrusion materials,
D2839 Practice for Use of a Melt Index Strand for Deter-
see Specification D4976. For information regarding plastic pipe materials,
mining Density of Polyethylene
see Specification D3350.
D2951 Test Method for Resistance of Types III and IV
NOTE 3—See Guide D7209and 3.1.2 of this standard for information
Polyethylene Plastics to Thermal Stress-Cracking (With-
and definitions related to recycled plastics.
3
drawn 2006)
1 2
This specification is under the jurisdiction of ASTM Committee D20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2012. Published May 2012. Originally the ASTM website.
3
approved in 1952. Last previous edition approved in 2005 as D1248 - 05. DOI: The last approved version of this historical standard is referenced on
10.1520/D1248-12. www.astm.org.
*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 ----------------------
D1248−12
D3182 PracticeforRubber—Materials,Equipment,andPro- describe polyethylene resins and compounds. The following
cedures for Mixing Standard Compounds and Preparing terminology is in use in ASTM specifications pertaining to
Standard Vulcanized Sheets polyethylene:
D3349 Test Method for Absorption Coefficient of Ethylene 3.2.1 Specification D1248:
Polymer Material Pigme
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D1248–05 Designation: D1248 – 12
Standard Specification for
Polyethylene Plastics Extrusion Materials for Wire and
1
Cable
This standard is issued under the fixed designation D1248; 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*
1.1 This specification provides for the identification of polyethylene plastics extrusion materials for wire and cable in such a
mannerthatthesellerandthepurchasercanagreeontheacceptabilityofdifferentcommerciallotsorshipments.Thetestsinvolved
in this specification are intended to provide information for identifying materials according to the types, classes, categories, and
grades covered. It is not the function of this specification to provide specific engineering data for design purposes.
1.2 This specification does not allow for the use of recycled plastics (see Note 3).
1.3The values stated in SI units are to be regarded as the standard.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical
conversions to inch-pound units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains only to the test method portion, Section 12, 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.
NOTE1—No ISO equivalent. 1—There is no known ISO equivalent to this standard.
NOTE 2—This standard has undergone major revision from the reapproval of 1989 and now covers only polyethylene for wire and cable applications.
For information regarding molding and extrusion materials, see Specification D4976. For information regarding plastic pipe materials, see Specification
D3350.
NOTE 3—See Guide D5033 for information and definitions related to recycled plastics. D7209and 3.1.2 of this standard for information and definitions
related to recycled plastics.
2. Referenced Documents
2
2.1 ASTM Standards:
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D618 Practice for Conditioning Plastics for Testing
D638 Test Method for Tensile Properties of Plastics
D746 Test Method for Brittleness Temperature of Plastics and Elastomers by Impact
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
D1505 Test Method for Density of Plastics by the Density-Gradient Technique
D1531 Test Methods for Relative Permittivity (Dielectric Constant) and Dissipation Factor by Fluid Displacement Procedures
D1603 Test Method for Carbon Black Content in Olefin Plastics
D1693 Test Method for Environmental Stress-Cracking of Ethylene Plastics D1898Practice for Sampling of Plastics
D2565 Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications
D2633 Test Methods for Thermoplastic Insulations and Jackets for Wire and Cable
D2839 Practice for Use of a Melt Index Strand for Determining Density of Polyethylene
D2951 Test Method for Resistance of Types III and IV Polyethylene Plastics to Thermal Stress-Cracking
D3182 Practice for RubberMaterials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard
Vulcanized Sheets
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved MarchApril 1, 2005.2012. Published March 2005.May 2012. Originally approved in 1952. Last previous edition approved in 20022005 as
D1248 - 045. DOI: 10.1520/D1248-05.10.1520/D1248-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright ©
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.