ASTM D4308-1995(2005) 精密计测定液态烃导电率的标准试验方法

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【英文标准名称】:StandardTestMethodforElectricalConductivityofLiquidHydrocarbonsbyPrecisionMeter
【原文标准名称】:精密计测定液态烃导电率的标准试验方法
【标准号】:ASTMD4308-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.J0.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:润滑剂;电导性;石油产品;烃类;试验
【英文主题词】:aviationfuels;electricalconductivity;liquidhydrocarbons;precisionmeter;low-conductivity
【摘要】:Thegenerationanddissipationofelectrostaticchargeinfuelduetohandlingdependlargelyontheionicspeciespresentwhichmaybecharacterizedbytherestorequilibriumelectricalconductivity.Thetimeforstaticchargetodissipateisinverselyrelatedtoconductivity.ThistestmethodcansupplementTestMethodD2624whichislimitedtofuelscontainingstaticdissipatoradditive.Note18212;Forlow-conductivityfluidsbelow1pS/minconductivity,anacmeasurementtechniqueispreferabletoadctestmethodforsensingtheelectricalconductivityofbulkfluid.Thisdctestmethodcanbeusedatconductivitiesfrom0.1to1pS/mifprecautionsareobservedincellcleaningandsamplehandling.Awaitingperiodof15minisrequiredafterfillingthecellbeforemeasuringdcconductivitiesbelow1pS/m.Asingle-laboratoryprogramwasconductedcomparingthistestmethodwithacTestMethodsD150.31.1Thistestmethodappliestothedeterminationofthe"rest"electricalconductivityofaviationfuelsandothersimilarlow-conductivityhydrocarbonliquidsintherangefrom0.1to2000pS/m(see3.2).Thistestmethodcanbeusedinthelaboratoryorinthefield.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.1.1and7.2.
【中国标准分类号】:G17
【国际标准分类号】:71_080_01
【页数】:6P.;A4
【正文语种】: