ASTM_D_229_-_19e1.pdf

Designation:D229191Standard Test Methods forRigid Sheet and Plate Materials Used for ElectricalInsulation1This standard is issued under the fixed designation D229;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.1NOTEThe title of Table 1 was editorially corrected in August 2019.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 These test methods cover procedures for testing rigidelectrical insulation normally manufactured in flat sheet orplate form.They are generally used as terminal boards,spacers,voltage barriers,and circuit boards.1.2 Use Test Methods D619(withdrawn)or SpecificationD710 for tests applying to vulcanized fibre.1.3 Some of the test methods contained in this standard aresimilar to those contained in IEC 60893-2,which applies torigid industrial laminated sheets based on thermosetting resinsfor electrical purposes.1.4 The test methods appear in the following sections:TestSectionsASTMTestMethodAcetone extractable matter82 to 83D494Arc resistance47D495Ash56 to 60.Bonding strength49 to 54.Flammability methods I and II61 to 74.Coefficient of linear thermal expansion76D696Compressive strength25D695Conditioning4D6054Dissipation factor34 to 40D669Dielectric strength28 to 33D149Expansion(linear thermal)75D696Flexural properties12 to 24D790Hardness(Rockwell)55D785Insulation resistance and resistivity41 to 46D257Permittivity34 to 40D150Resistance to impact26D256Tensile properties7 to 11D638Thickness5 to 6D374Tracking resistance48D2132Warp or twist76 to 81.Water absorption27D5701.5 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 This is a fire-test-response standard.See Sections 61through 74,which are the procedures for assessing ignitabilityand burning time under specific test conditions1.7 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.Specific precautionary statements are given in 31.1 and 1.8.1.8 This standard measures and describes the response ofmaterials,products,or assemblies to heat and flame undercontrolled conditions,but does not by itself incorporate allfactors required for fire hazard or fire risk assessment of thematerials,products,or assemblies under actual fire conditions.1.9 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.10 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:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical Insulation1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and are the direct responsibility ofSubcommittee D09.07 on Electrical Insulating Materials.Current edition approved March 1,2019.Published March 2019.Originallyapproved in 1925.Last previous edition approved in 2013 as D229 13.DOI:10.1520/D0229-19E01.2For 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.*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 D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD374 Test Methods for Thickness of Solid Electrical Insu-lation(Metric)D0374_D0374MD494 Test Method for Acetone Extraction of PhenolicMolded or Laminated ProductsD495 Test