1、Designation:D61921An American National StandardStandard Test Methods forVulcanized Fibre Used for Electrical Insulation1This standard is issued under the fixed designation D619;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、 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 These test methods cover the procedures for testingvulcanized fibre sheets,rolls,tubes,and rods of such grades ascan b
3、e used for electrical insulation.1.2 The procedures appear in the following sections:ProcedureSectionArc Resistance23Ash6Bond Strength(Ply Adhesion)16Bursting Strength14Compressive Strength12,25,30Conditioning4Density17,26,32Dielectric Strength18,27Dimensional Measurements28,33Flammability22Flexural
4、 Strength13,31Silica7Tearing Strength11Tensile Strength10,24,29Thickness(Sheets)20Resistance to Impact15Rockwell Hardness19Volatile Matter8Water Absorption5Zinc Chloride91.3 The values stated in inch-pound units are to be regardedas the standard.The SI values given in parentheses are forinformation
5、only.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use
6、.Specific hazard statements are given in 7.3,22.1,and 22.2.NOTE1The test methods described herein are similar technically tothose described in IEC Publication 60667-2.Not all of the tests in thisdocument are included in IEC 60667-2,and the procedures in the twopublications are not completely identic
7、al;but it is expected that compa-rable results will be obtained from most of the procedures.Conductcomparative tests if necessary before directly comparing results of testsusing the different procedures.1.5 This international standard was developed in accor-dance with internationally recognized prin
8、ciples 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:2D149 Test Method for Dielectric Bre
9、akdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD202 Test Methods for Sampling and Testing UntreatedPaper Used for Electrical InsulationD229 Test Methods for Rigid Sheet and Plate MaterialsUsed for Electrical InsulationD256 Test Methods fo
10、r Determining the Izod PendulumImpact Resistance of PlasticsD348 Test Methods for Rigid Tubes Used for ElectricalInsulation(Withdrawn 2020)3D349 Test Methods for Laminated Round Rods Used forElectrical Insulation(Withdrawn 2020)3D374 Test Methods for Thickness of Solid Electrical Insu-lation(Metric)
11、D0374_D0374MD495 Test Method for High-Voltage,Low-Current,Dry ArcResistance of Solid Electrical InsulationD570 Test Method for Water Absorption of PlasticsD668 Test Methods of Measuring Dimensions of Rigid Rodsand Tubes Used for Electrical Insulation(Withdrawn2020)3D689 Test Method for Internal Tear
12、ing Resistance of PaperD695 Test Method for Compressive Properties of RigidPlasticsD710 Specification for Vulcanized Fibre Sheets,Rolls,Rods,and Tubes Used for Electrical InsulationD785 Test Method for Rockwell Hardness of Plastics andElectrical Insulating Materials1These test methods are under the
13、jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and are the direct responsibility ofSubcommittee D09.07 on Electrical Insulating MaterialsCurrent edition approved Jan.1,2021.Published February 2021.Originallyapproved in 1941.Last previous edition approved in 2014
14、as D619 14.DOI:10.1520/D0619-21.2For 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.3The last approved version of this
15、 historical standard is referenced onwww.astm.org.*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
16、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.1D792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD828 Test Method for Tensile Properties of Paper andPaperboard Using Constant-Rate-of-ElongationApparatusD952 Test Method for Bond or Cohesive Strength of SheetPlasti
