ASTMD1125导读：简要介绍资料的主要内容,以获得更多的关注Designation:D1125–95(Reapproved2022)StandardTestMethodsforElectricalConductivityandResistivityofWater1ThisstandardisissuedunderthexeddesignationD1125;thenumberimmediatelyfollowingthedesignationi简要介绍资料的主要内容,以获得更多的关注Designation:D1125–95(Reapproved2022)StandardTestMethodsforElectricalConductivityandResistivityofWater1ThisstandardisissuedunderthexeddesignationD1125;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon()indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.ScopeD2186TestMethodsforDeposit-FormingImpuritiesin1.1ThesetestmethodscoverthedeterminationoftheSteamelectricalconductivityandresistivityofwater.ThefollowingD2777PracticeforDeterminationofPrecisionandBiasoftestmethodsareincluded:ApplicableTestMethodsofCommitteeD19onWaterRangeSectionsD3370PracticesforSamplingWaterfromClosedConduitsTestMethodA—FieldandRoutineLaboratory10to20000012to18D4519TestMethodforOn-LineDeterminationofAnionsMeasurementofStatic(Non-Flowing)S/cmSamplesandCarbonDioxideinHighPurityWaterbyCationTestMethodB—ContinuousIn-LineMeasure5to20000019to23ExchangeandDegassedCationConductivitymentS/cmD5391TestMethodforElectricalConductivityandResis-1.2Thesetestmethodshavebeentestedinreagentwater.IttivityofaFlowingHighPurityWaterSampleistheuser’sresponsibilitytoensurethevalidityofthesetestE1SpecicationforASTMLiquid-in-GlassThermometersmethodsforwatersofuntestedmatrices.1.3Formeasurementsbelowtherangeofthesetestmeth-3.Terminologyods,refertoTestMethodD5391.3.1Denitions:1.4ThevaluesstatedinSIunitsaretoberegardedas3.1.1electricalconductivity—thereciprocalofthea-cre-standard.Nootherunitsofmeasurementareincludedinthissistanceinohmsmeasuredbetweenoppositefacesofastandard.centimetrecubeofanaqueoussolutionataspeciedtempera-1.5Thisstandarddoesnotpurporttoaddressalloftheture.safetyconcerns,ifany,associatedwithitsuse.ItistheNOTE1—Theunitofelectricalconductivityissiemenspercentimetre.responsibilityoftheuserofthisstandardtoestablishappro-(Thepreviouslyusedunitsofmhos/cmarenumericallyequivalenttopriatesafetyandhealthpracticesanddeterminetheapplica-S/cm.)Theactualresistanceofthecell,Rx,ismeasuredinohms.Thebilityofregulatorylimitationspriortouse.conductance,1/Rx,isdirectlyproportionaltothecross-sectionalarea,A(incm2),andinverselyproportionaltothelengthofthepath,L(incm):2.ReferencedDocuments1/Rx5KA/L2.1ASTMStandards:2TheconductancemeasuredbetweenoppositefacesofaD1066PracticeforSamplingSteamcentimetrecube,K,iscalledconductivity.ConductivityvaluesD1129TerminologyRelatingtoWaterareusuallyexpressedinmicrosiemens/centimetreorinD1192GuideforEquipmentforSamplingWaterandsiemens/centimetreataspeciedtemperature,normally25C.SteaminClosedConduits33.1.2electricalresistivity—thea-cresistanceinohmsmea-D1193SpecicationforReagentWatersuredbetweenoppositefacesofacentimetrecubeofanaqueoussolutionataspeciedtemperature.1ThesetestmethodsareunderthejurisdictionofCommitteeD19onWaterandNOTE2—Theunitofelectricalresistivityisohm-centimetre.TheactualarethedirectresponsibilityofSubcommitteeD19.03onSamplingWaterandresistanceofthecell,Rx,ismeasuredinohms,andis...