【英文标准名称】:Terminologyrelatedtomicroprocessors
【原文标准名称】:微处理机有关的术语
【标准号】:IEC60824-1988
【标准状态】:现行
【国别】:国际
【发布日期】:1988
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:ISO/IECJTC1/SC26
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;术语;电气工程;微处理机
【英文主题词】:Definitions;Electricalengineering;Microprocessors;Terminology
【摘要】:IncludestermsanddefinitionsrelatedtomicroprocessorsinEnglishandFrench.
【中国标准分类号】:L60
【国际标准分类号】:01_040_31;31_200
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforScreeningFuelsinSoils
【原文标准名称】:土壤中筛分燃料的标准试验方法
【标准号】:ASTMD5831-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D34.01.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbance;contamination;extraction;fieldscreening;fuels;soils;Coaloil;Crudepetroleumproducts;Dieselenginefueloils;Motoroil;Screenanalysis--soils;Soilsampling;Syntheticmotoroil;Usedmotoroil
【摘要】:Thistestmethodisascreeningprocedurefordeterminingthepresenceoffuelscontainingaromaticcompoundsinsoils.Ifthecontaminantfuelisavailableforcalibration,theapproximateconcentrationofthefuelinthesoilcanbecalculated.Ifthefueltypeisknown,butthecontaminantfuelisnotavailableforcalibration,anestimateofthecontaminantfuelconcentrationcanbecalculatedusingaverageresponsefactors.Ifthenatureofthecontaminantfuelisunknown,acontaminantconcentrationcannotbecalculated,andthetestmethodcanonlybeusedonlytoindicatethepresenceorabsenceoffuelcontamination.Fuelscontainingaromaticcompounds,suchasdieselfuelandgasoline,aswellasotheraromatic-containinghydrocarbonmaterials,suchascrudeoil,coaloil,andmotoroil,canbedeterminedbythistestmethod.Thequantitationlimitfordieselfuelisabout75mg/kg.Approximatequantitationlimitsforotheraromatic-containinghydrocarbonmaterialsthatcanbedeterminedbythisscreeningtestmethodaregiveninTable1.Quantitationlimitsforhighlyaliphaticmaterials,suchasaviationgasolineandsyntheticmotoroil,aremuchhigherthanthoseformorearomaticmaterials,suchascoaloilanddieselfuel.Note18212;ThequantitationlimitslistedinTable1areapproximatevaluesbecauseinthistestmethod,thequantitationlimitcanbeinfluencedbytheparticularfueltypeandsoilbackgroundlevels.ForinformationonhowthevaluesgiveninTable1weredetermined,seeAppendixX1.Datageneratedduringthedevelopmentofthisscreeningtestmethodandotherinformationpertainingtothistestmethodcanbefoundintheresearchreports.(1,2)Whenapplyingthistestmethodtositescontaminatedbydieselfuel,careshouldbetakeninselectingtheappropriateresponsefactorfromthelistgiveninTable2,withconsiderationgiventowhetherornotthefuelcontaminationisfreshorhasundergoneweathering/orbiodegradationprocesses.SeeAppendixX2.Afactortoconsiderinusingthistestmethodiswhetherthecontaminationisamixtureofoneormorefueltypes.Ifthisisthecase,andasite-specificresponsefactor(seeAppendixX2,SectionX2.3)cannotbedetermined,theresponsefactorsfortheindividualfueltypesinthemixtureshouldbeusedtoestimatecontaminantconcentrations.Certainmaterials,suchasasphaltsandasphaltresidualsandoilsandpitchfromtreesandothervegetation,whichrespondasfuelwhentestedbythemethodgivinghighblankabsorbancevalues,mayinterferewithuseofthistestmethod.See8.1.2.1andNote3forinformationondeterminingifthetestmethodcanbeappliedtoaspecificsoilcontainingoneormoreofthesetypesofmaterials.Extractablematerial,whichscattersorabsorbslightat254nm,isapotentialinterferenceforthisscreeningtestmethod.TABLE1ApproximateQuantitationLimitsforVariousFuelTypesinSoilsBasedon0.036AUMaterialLimitofQuantitation(LOQ),mg/kg
CoalOil
21

CrudeOil
61

DieselFuel
75

WeatheredDieselFuel
21

UsedMotorOil
162