ISO 7494-1-2011 牙科学.牙科装置.第1部分:一般要求和试验方法
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来源:标准资料网
【英文标准名称】:Dentistry-Dentalunits-Part1:Generalrequirementsandtestmethods
【原文标准名称】:牙科学.牙科装置.第1部分:一般要求和试验方法
【标准号】:ISO7494-1-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-08
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC106
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Classification;Definitions;Dentalequipment;Dentalhandpieces;Dentalinstruments;Dentalpatientchairs;Dentistry;Electricaltesting;Information;Instructionsforuse;Instruments;Marking;Mechanicaltesting;Medicalequipment;Medicalinstruments;Packages;Production;Recommendation;Safetyrequirements;Specification;Specification(approval);Testing
【摘要】:
【中国标准分类号】:C33
【国际标准分类号】:11_060_25
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforSubsurfaceFlowandTransportModeling
【原文标准名称】:地下流量和传送带模型的制造标准指南
【标准号】:ASTMD5880-1995(2006)
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:地面;流体;流动;模拟;模拟;模型;地下水;地下探查;流动模型;水模型制造;计算机模型;地下流体;地下井;导则
【英文主题词】:computermodel;groundwater;simulation
【摘要】:Subsurfacefluidflowmodelingisawellestablishedtoolthatcanaidinstudyingandsolvingsoilandground-waterproblems.Evaluationofmorecomplexproblemshasbeenallowedasaresultofadvancesincomputingpowerandnumericalanalysis,yetconfusionandmisunderstandingoverapplicationofmodelsstillexists.Asaresult,someinappropriateuseoccursandsomeproblemswhichcouldbereadilyaddressedarenot.Thepurposesofthisguidearetointroducethebasicconceptsofsubsurfacefluidsmodelingandtoshowhowmodelsaredescribedandcategorized.Thisguideshouldbeusedbypracticingground-watermodelers,purchasersofmodelingservices,andbythosewishingtounderstandmodeling.1.1Thisguidecoversanoverviewofsubsurfacefluid-flow(ground-water)modeling.Thetermsubsurfacefluidflowisusedtoreducemisunderstandingregardinggroundwater,soilwater,vaporsincludingairinsubsurfacepores,andnon-aqueousphaseliquids.Increasedunderstandingoffluid-flowphenomenaisthecombinedresultoffieldinvestigationsandtheoreticaldevelopmentofmathematicalmethodstodescribetheobservations.Theresultsaremethodsformodelingviscousfluidsandairflow,inadditiontowater,thatarepracticalandappropriate.1.2Thisguideincludesmanytermstoassisttheuserinunderstandingtheinformationpresentedhere.Aground-watersystem(soilsandwater)mayberepresentedbyaphysical,electrical,ormathematicalmodel,asdescribedin.Thisguidefocusesonmathematicalmodels.Thetermmathematicalmodelisdefinedin;however,itwillbemostoftenusedtorefertothesubsetofmodelsrequiringacomputer.1.3Thisguideintroducestopicsforwhichotherstandardshavebeendeveloped.Theprocessofapplyingaground-waterflowmodelisdescribedinGuideD5447.Theprocessincludesdefiningboundaryconditions(GuideD5609),initialconditions(GuideD5610),performingasensitivityanalysis(GuideD5611),anddocumentingaflowmodelapplication(GuideD5718).Otherstepsincludedevelopingaconceptualmodelandcalibratingthemodel.Aspartofcalibration,simulationsarecomparedtosite-specificinformation(GuideD5490),suchaswaterlevels.1.4Modeluseandmisuse,limitations,andsourcesoferrorinmodelingarediscussedinthisstandard.Thisguidedoesnotendorseparticularcomputersoftwareoralgorithmsusedinthemodelinginvestigation.However,thisguidedoesprovidereferencestosomeparticularcodesthatarerepresentativeofdifferenttypesofmodels.1.5Typically,acomputermodelconsistsoftwoparts;computercodethatissometimescalledthecomputerprogramorsoftware,andadatasetthatconstitutestheinputparametersthatmakeuptheboundaryandinitialconditions,andmediumandfluidproperties.Astandardhasbeendevelopedtoaddressevaluationofmodelcodes(seePracticeE978).1.6Standardshavebeenpreparedtodescribespecificaspectsofmodeling,suchassimulatingsubsurfaceairflowusingground-waterflowmodelingcodes(seeGuideD5719)andmodelingaspartoftherisk-basedcorrectiveactionprocessappliedatpetroleumreleasesites(seePracticeE1739).1.7Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocu......
【中国标准分类号】:P55
【国际标准分类号】:13_060_10
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:Aerospaceseries-Circuitbreakers-Testmethods-Strengthofmountingelements
【原文标准名称】:航空航天系列.断路器.试验方法.安装元件强度
【标准号】:BSEN3841-504-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-02-22
【实施或试行日期】:2005-02-22
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:开关设备;试验条件;规范(验收);航空航天运输;材料强度;固定件;断路器;试验(质量保证);开关;电气工程
【英文主题词】:Aerospacetransport;Airtransport;Circuit-breakers;Dimensions;Electricalengineering;Examination(qualityassurance);Fixings;Multilingual;Spacetransport;Specification(approval);Strengthofmaterials;Switches;Switchgear;Testing;Testingconditions
【摘要】:Thisstandardspecifiesamethodofverifyingthestrengthofthemountingelementsofcircuitbreakers.ItshallbeusedtogetherwithEN3841-100.
【中国标准分类号】:V40
【国际标准分类号】:49_060
【页数】:8P;A4
【正文语种】:英语
