Designation:D6054−97(Reapproved2004)AnAmericanNationalStandardStandardPracticeforConditioningElectricalInsulatingMaterialsforTesting1ThisstandardisissuedunderthefixeddesignationD6054;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversproceduresforconditioningelec-tricalinsulatingmaterials(althoughnotnecessarilytoequilib-rium)priortotestingandtheconditionsunderwhichtheyshallbetested.Ingeneralthephysicalandelectricalpropertiesofelectricalinsulatingmaterialsareinfluencedbytemperatureandrelativehumidityinamannerthatmateriallyaffectstestresults.Inorderthatreliablecomparisonsmaybemadeofdifferentmaterialsandbetweendifferentlaboratories,itisnecessarytostandardizethehumidityandtemperaturecondi-tionstowhichspecimensofthesematerialsaresubjectedpriortoandduringtesting.1.2ThispracticeissimilartoPracticeD618.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD709SpecificationforLaminatedThermosettingMaterialsD1711TerminologyRelatingtoElectricalInsulationD5032PracticeforMaintainingConstantRelativeHumiditybyMeansofAqueousGlycerinSolutions3.Terminology3.1Definitions:3.1.1roomtemperature,n—atemperatureintherangefrom20to30°C.3.1.2standardlaboratoryatmosphere,n—anatmospherehavingatemperatureof2362°Candarelativehumidityof5065%.3.1.2.1Discussion—Whereclosertolerancesonatmo-sphericconditionsarerequired,61°Contemperatureor62%onrelativehumidity,orboth,maybespecified.3.1.3standardlaboratorytemperature,n—atemperatureof2362°C.3.1.4Fordefinitionsofothertermsrelatingtoelectricalinsula...
