【英文标准名称】:Safetyofhouseholdandsimilarelectricalappliances;particularrequirementsforportableelectricheatingtools;germanversionEN60335-2-45:1989
【原文标准名称】:家用及类似用途电器的安全.便携式电热器具
【标准号】:DINVDE0700-45-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-01
【实施或试行日期】:1991-01-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;安全工程;家用;工具;电气设备;分类;试验;定义;电动工具;铭刻;电气安全;机械安全;安全要求;热效应;电气器具;安全;额定值;电加热用具;普通控制系统;规范(审批);易动的
【英文主题词】:
【摘要】:
【中国标准分类号】:Y63
【国际标准分类号】:97_180
【页数】:15P;A4
【正文语种】:德语


【英文标准名称】:StandardGuideforUseoftheTimeDomainElectromagneticMethodforSubsurfaceInvestigation
【原文标准名称】:次表面探查用时间域电磁法的使用标准指南
【标准号】:ASTMD6820-2002(2007)
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D18.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:conductivity;electricalmethod;geophysics;resistivity;subsurfaceinvestigation;surfacegeophysics;timedomainelectromagneticmethod;transientelectromagneticmethod
【摘要】:1.1PurposeandApplicationThisguidesummarizestheequipment,fieldprocedures,andinterpretationmethodsfortheassessmentofsubsurfacematerialsandtheirporefluidsusingtheTimeDomainElectromagnetic(TDEM)method.ThismethodisalsoknownastheTransientElectromagneticMethod(TEM),andinthisguideisreferredtoastheTDEM/TEMmethod.TimeDomainandTransientrefertothemeasurementofatime-varyinginducedelectromagneticfield.1.1.1TheTDEM/TEMmethodisapplicabletoinvestigationofawiderangeofsubsurfaceconditions.TDEM/TEMmethodsmeasurevariationsintheelectricalresistivity(orthereciprocal,theelectricalconductivity)ofthesubsurfacesoilorrockcausedbybothlateralandverticalvariationsinvariousphysicalpropertiesofthesoilorrock.Bymeasuringbothlateralandverticalchangesinresistivity,variationsinsubsurfaceconditionscanbedetermined.1.1.2Electromagneticmeasurementsofresistivityasdescribedinthisguideareappliedingeologicstudies,geotechnicalstudies,hydrologicinvestigations,andformappingsubsurfaceconditionsatwastedisposalsites().Resistivitymeasurementscanbeusedtomapgeologicchangessuchaslithology,geologicalstructure,fractures,stratigraphy,anddepthtobedrock.Inaddition,measurementofresistivitycanbeappliedtohydrologicinvestigationssuchasthedepthtowatertable,depthtoaquitard,presenceofcoastalorinlandgroundwatersalinity,andforthedirectexplorationforgroundwater.1.1.3GeneralreferencesfortheuseofthemethodareMcNeill(),KeareyandBrooks(),andTelfordetal().1.2Limitations1.2.1ThisguideprovidesanoverviewoftheTDEM/TEMmethod.Itdoesnotprovideoraddressthedetailsofthetheory,fieldprocedures,orinterpretationofthedata.Numerousreferencesareincludedforthatpurposeandareconsideredanessentialpartofthisguide.ItisrecommendedthattheuseroftheTDEM/TEMmethodbefamiliarwiththereferencescitedandwiththeASTMstandardsD420,D653,D5088,D5608,D5730,D5753,D6235,D6429andD6431.1.2.2ThisguideislimitedtoTDEM/TEMmeasurementsmadeonland.TheTDEM/TEMmethodcanbeadaptedforanumberofspecialusesonland,water,ice,withinaborehole,andairborne.SpecialTDEM/TEMconfigurationsareusedformetalandunexplodedordnancedetection.TheseTDEM/TEMmethodsarenotdiscussedinthisguide.1.2.3TheapproachessuggestedinthisguidefortheTDEM/TEMmethodarecommonlyused,widelyaccepted,andproven.However,otherapproachesormodificationstotheTDEM/TEMmethodthataretechnicallysoundmaybesubstituted.1.2.4Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducation,experience,andshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.ThewordstandardinthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1.3Precautions1.3.1Itistheresponsibilityoftheuserofthisguidetofollowanyprecautionsintheequipmentmanufacturer''srecommendationsandtoestablishappropriatehealthandsafetypractices.1.3.2Ifthemethodisusedatsiteswithhazardousmaterials,operations,orequipment,itistheresponsibilityoftheuserofthisguidetoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofanyregulationspriortouse.1.3.3......
【中国标准分类号】:A42
【国际标准分类号】:33_100_01
【页数】:15P.;A4
【正文语种】: