ASTM_D_2647_-_18.pdf

Designation:D264718Standard Specification forCrosslinkable Ethylene Plastics1This standard is issued under the fixed designation D2647;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers a general classification systemfor crosslinkable ethylene plastics compounds(Note 1).Therequirements specified herein are not necessarily applicable foruse as criteria in determining suitability for the end use of afabricated product.NOTE1It is to be noted that this specification describes materials thatare available commercially in their uncrosslinked form.Therefore,theyare crosslinkable compounds despite the fact that measurement of theparameters used for their classification and specification will usually becarried out after curing has been effected.1.2 Two types of compounds are covered,namely,mechani-cal types in which mechanical strength properties are of primeimportance in applications,and electrical types in whichelectrical insulating or conducting properties also are of primeimportance in applications.1.3 The parameters used to classify and specify the me-chanical types are ultimate elongation,elongation retentionafter aging,apparent modulus of rigidity,and brittlenesstemperature.1.4 The parameters used to classify and specify the electri-cal types are ultimate elongation,elongation retention afteraging,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 thestandard.The values given in parentheses are for informationonly.1.6 The following safety hazards caveat pertains only to thetest methods portion,Section 7,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.NOTE2There is no known ISO equivalent to this standard.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD573 Test Method for RubberDeterioration in an AirOvenD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD883 Terminology Relating to PlasticsD991 Test Method for Rubber PropertyVolume Resistiv-ity Of Electrically Conductive and Antistatic ProductsD1043 Test Method for Stiffness Properties of Plastics as aFunction of Temperature by Means of a Torsion TestD2765 Test Methods for Determination of Gel Content andSwell Ratio of Crosslinked Ethylene PlasticsD3892 Practice for Packaging/Packing of PlasticsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):(The Modernized Metric System)2.2 Military Standard:MIL-STD-105 Sampling Procedures and Tables for Inspec-tion by Attributes3(Obsolete 1995)3.Terminology3.1 DefinitionsFor definitions of plastics terms used inthis specification,see Terminology D883.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Nov.1,2018.Published November 2018.Originallyapproved in 1967.Last previous edition approved in 2010 as D2647-10.DOI:10.1520/D2647-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from DefenseAutomation and Production Service,Bldg.4 Section D,700 Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2 AbbreviationsUnits,Symbols,