Designation:B193−16StandardTestMethodforResistivityofElectricalConductorMaterials1ThisstandardisissuedunderthefixeddesignationB193;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheelec-tricalresistivityofmetallicelectricalconductormaterial.Itprovidesforanaccuracyof60.30%ontestspecimenshavingaresistanceof0.00001Ω(10µΩ)ormore.Weightresistivityaccuracymaybeadverselyaffectedbypossibleinaccuraciesintheassumeddensityoftheconductor.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A111SpecificationforZinc-Coated(Galvanized)“Iron”TelephoneandTelegraphLineWireA326SpecificationforZinc-Coated(Galvanized)HighTen-sileSteelTelephoneandTelegraphLineWire(Withdrawn1990)3B9SpecificationforBronzeTrolleyWireB105SpecificationforHard-DrawnCopperAlloyWiresforElectricConductorsB298SpecificationforSilver-CoatedSoftorAnnealedCop-perWireB355SpecificationforNickel-CoatedSoftorAnnealedCop-perWireB415SpecificationforHard-DrawnAluminum-CladSteelWireB498/B498MSpecificationforZinc-Coated(Galvanized)SteelCoreWireforUseinOverheadElectricalConduc-torsB566SpecificationforCopper-CladAluminumWireB606SpecificationforHigh-StrengthZinc-Coated(Galva-nized)SteelCoreWireforAluminumandAluminum-AlloyConductors,SteelReinforcedB800Specificationfor8000SeriesAluminumAlloyWireforElectricalPurposes—AnnealedandIntermediateTem-persB802SpecificationforZinc-5%Aluminum-MischmetalAlloy-CoatedSteelCoreWireforAluminumConductors,SteelReinforced(ACSR)[Metric](Discont...
