JIS Z4751-2-43-2012 医用电气设备.第2-43部分:介入过程用X射线设备的基本安全和必要性能用详细要求
时间:2024-05-16 22:03:43 来源: 标准资料网 作者：标准资料网 阅读：8245
【英文标准名称】:Medicalelectricalequipment--Part2-43:ParticularrequirementsforthebasicsafetyandessentialperformanceofX-rayequipmentforinterventionalprocedures
【原文标准名称】:医用电气设备.第2-43部分:介入过程用X射线设备的基本安全和必要性能用详细要求
【标准号】:JISZ4751-2-43-2012
【标准状态】:现行
【国别】:
【发布日期】:2012-10-01
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonMedicalEquipment
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:11_040_50;37_040_25
【页数】:46P;A4
【正文语种】:日语
【英文标准名称】:StandardSpecificationforCastings,Chromium-NickelAlloy
【原文标准名称】:铬镍合金铸件的标准规范
【标准号】:ASTMA560/A560M-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;铸件;镍;铬
【英文主题词】:nickel;chromium;castings;alloys
【摘要】:
【中国标准分类号】:J31
【国际标准分类号】:77_150_40
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringStiffnessandApparentModulusofSoilandSoil-AggregateIn-PlacebyElectro-MechanicalMethod
【原文标准名称】:用电动机械法测量土壤和土壤集料实体的硬挺度和表观模数的标准试验方法
【标准号】:ASTMD6758-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compactioncontrol;in-placemodulus;in-placestiffness;in-situtest;non-destructive;productiontesting;shearmodulus;soilstiffnesstest;stiffnessgauge;Young'smodulus;Compactioncontrol;Electromechanicalprocessing/devices;In-place
【摘要】:Theapparatusandproceduredescribedprovidesameansformeasurementofthestiffnessofalayerofsoilorsoil-aggregatemixturefromwhichaYoung''smodulusmaybedeterminedforanassumedPoisson''sratio.Lowstraincyclicloadingisappliedbytheapparatusaboutastaticloadthatisconsistentwithhighwayapplications(1).Thismethodisusefulasanon-destructivemethodformonitoringorcontrollingcompactionsoastoavoidunder-compaction,over-compactionorwastedeffort.Throughanunderstandingofhowstiffnessrelatestodensityforaparticularmaterial,moisturecontentandcompactionprocedure,thestiffnessachievedcanberelatedto%compactioninconnectionwithdensitybasedcompactioncontrolorspecifications,forexample,tomeettherequirementsofMethodD698usingstandardeffortorMethodD1557usingmodifiedeffort.Thismethodappliestosiltyandclayeymaterialscontaininggreaterthan20%fines.Insuchcases,therelationshipbetweenstiffnessanddrydensityordryunitweightissensitivetothewatercontent.Watercontentsshouldbedeterminedbyuseof:TestMethodD2216,D4643,orD4959.Ifthedeterminationcannotbemadeimmediatelyatthetimeofthestiffnessmeasurements,thensoilsamplesshallbepreservedandtransportedinaccordancewithPracticeD4220,Section8,GroupsB,C,orDsoils.Thismethodisusefulintheconstructionofroadbasesorearthworks,includingtheinstallationofburiedpipe(2).Therapid,non-penetratingnatureofthismethodissuitedtoproductiontesting,forexample,itprovidesameansoftestingthatdoesnotnecessarilyinterferewithordelayconstruction.Thismethodissuitableformitigatingtheriskofpavementfailure.Byassuringtherelativeuniformityofhighwaysubbase,subgradeandbasestiffnesses,stressesonthepavementismoreuniformlydistributed.Inthiswaythelifeofapavementisextendedandrepairsminimized.Thismethodissuitablefordeterminingwhenthesurfaceofasoilorsoil-aggregatestructureiscapableofsupportingdesignloads.Thisisusefulforstabilizedfillswherethematerialhardens(stiffens)overtimewithoutmeasurablechangesindensityormoisturecontent.Thistestmethodissuitableforthein-placedeterminationofaYoung''sandashearmodulusofsoilandsoil-aggregatemixtures(3,4).Stiffness,asmeasuredbythismethod,isrelatedtomodulus(5)fromanassumptionofPoisson''sratioandfromtheradiusofthefootoftheapparatusasfollows:where:Kgr
【中国标准分类号】:Q13
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】:英语