Designation:G21−15StandardPracticeforDeterminingResistanceofSyntheticPolymericMaterialstoFungi1ThisstandardisissuedunderthefixeddesignationG21;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticecoversdeterminationoftheeffectoffungionthepropertiesofsyntheticpolymericmaterialsintheformofmoldedandfabricatedarticles,tubes,rods,sheets,andfilmmaterials.Changesinoptical,mechanical,andelectricalprop-ertiesmaybedeterminedbytheapplicableASTMmethods.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD150TestMethodsforACLossCharacteristicsandPermit-tivity(DielectricConstant)ofSolidElectricalInsulationD257TestMethodsforDCResistanceorConductanceofInsulatingMaterialsD495TestMethodforHigh-Voltage,Low-Current,DryArcResistanceofSolidElectricalInsulationD618PracticeforConditioningPlasticsforTestingD638TestMethodforTensilePropertiesofPlasticsD747TestMethodforApparentBendingModulusofPlas-ticsbyMeansofaCantileverBeamD785TestMethodforRockwellHardnessofPlasticsandElectricalInsulatingMaterialsD882TestMethodforTensilePropertiesofThinPlasticSheetingD1003TestMethodforHazeandLuminousTransmittanceofTransparentPlasticsD1708TestMethodforTensilePropertiesofPlasticsbyUseofMicrotensileSpecimensE96/E96MTestMethodsforWaterVaporTransmissionof...
