SAE AMS6477 Steel, Bars, Forgings, and Tubing, 0.80Cr - (0.90 - 1.03C), For Bearing Applications
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来源:标准资料网
Product Code:SAE AMS6477
Title:Steel, Bars, Forgings, and Tubing, 0.80Cr - (0.90 - 1.03C), For Bearing Applications
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers a low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
【英文标准名称】:StandardTestMethodforStatic,Dynamic,andWearAssessmentofExtra-DiscalSpinalMotionPreservingImplants
【原文标准名称】:防脊椎盘突出植入物静态、动态及磨损评定的标准试验方法
【标准号】:ASTMF2624-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:F04.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:non-rigidextra-discalmotionpreservingdevice;posteriorinstrumentation;spinalimplant;wearassessment;weightlossmethod
【摘要】:Thistestmethodisdesignedtoquantifythestatic,dynamic,andwearcharacteristicsofdifferentdesignsofextra-discalmotionpreservingimplantsusingtestingmedium(see6.1)forsimulatingthephysiologicenvironmentat37x00B0;C.Wearisassessedusingaweightlossmethodinadditiontodimensionalanalyses.Weightlossisdeterminedaftersubjectingtheimplantstodynamicprofilesspecifiedinthistestmethod.Thisinformationwillallowthemanufacturerorenduseroftheproducttounderstandhowthespecificdeviceinquestionperformsunderthetestconditionsprescribedinthistestmethod.Thistestmethodisintendedtobeapplicableforextra-discalmotionpreservingimplants.Theseimplantsaugmentthemotion/loadbearingcharacteristicsbetweenadjacentvertebralbodies,andtherebyfullyorpartiallysupportandtransmitmotionbymeansofanarticulatingjointorbyuseofcompliantmaterials.Ceramics,metals,orpolymers,orcombinationsthereofareusedinimplantdesign,anditisthegoalofthistestmethodtoenableacomparisonofthestatic,dynamic,andwearpropertiesgeneratedbythesedevices,regardlessofmaterialandtypeofdevice.1.1Thistestmethodisintendedtoprovidetestmethodsforthestatic,dynamic,andweartestingofextra-discalmotionpreservingimplants.Theseimplantsareintendedtoaugmentspinalstabilitywithoutsignificanttissueremovalwhileallowingmotionofthefunctionalspinalunit(s).1.2Wearisassessedusingaweightlossmethodandadimensionalanalysisfordeterminingwearofcomponentsusedinextra-discalspinalmotionpreservingprocedures,usingtestingmediumasdefinedinthistestmethod(6.1).1.3Thistestmethodisnotintendedtoaddressanypotentialfailuremodeasitrelatestothefixationofthedevicetoitsbonyinterfaces.1.4Itistheintentofthistestmethodtoenablecomparisonofmotionpreserving,extra-discalimplantswithregardtokinematic,functional,andwearcharacteristicswhentestedunderthespecifiedconditions.Itmustberecognized,however,thattherearemanypossiblevariationsintheinvivoconditions.Asinglelaboratorysimulationwithafixedsetofparametersmaynotbeuniversallyrepresentative.1.5Thistestmethodisnotintendedtoaddressfacetarthroplastydevices.1.6Thistestmethodprescribestheuseofpureangularrotationsforassessingthemechanicalcharacteristicsofextra-discalmotionpreservingimplants.Thistestmethoddoesnot,however,prescribemethodsforassessingthemechanicalcharacteristicsofthedeviceintranslation(forexample,anterior/posteriortranslation),thoughthistypeoflinearmotionmaybeclinicallyrelevant.1.7Inorderthatthedatabereproducibleandcomparablewithinandbetweenlaboratories,itisessentialthatuniformproceduresareestablished.Thistestmethodisintendedtofacilitateuniformtestingmethodsanddatareportingforextra-discalmotionpreservingimplants.1.8Withoutasubstantialclinicalretrievalhistoryofspinal,motionpreservingextra-discalimplants,actualloadingprofilesandpatternscannotbedelineatedatthetimeofthewritingofthistestmethod.Itthereforefollowsthatthemotionprofilesspecifiedbythistestmethoddonotnecessarilyaccuratelyreproducethoseoccurringinvivo.Ratherthismethodprovidesusefulboundary/endpointconditionsforevaluatingimplantdesignsinafunctionalmanner.1.9Thistestmethodisnotintendedtobeaperformancestandard.Itistheresponsibilityoftheuserofthistestmethodtocharacterizethesafetyandeffectivenessofthedeviceunder......
【中国标准分类号】:C45
【国际标准分类号】:11_040_40
【页数】:11P.;A4
【正文语种】:英语
【英文标准名称】:Guidetotheuseofgas-in-fluidanalysisforelectricpowercablesystems
【原文标准名称】:电力电缆系统用液体中气体分析的使用指南
【标准号】:IEEE1406-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:气体分析;架空线;电气工程;电缆;供能系统(建筑物);电缆系统
【英文主题词】:Cablesystems;Cables;Electricalengineering;Energysupplysystems(buildings);Gasanalysis;Overheadpowerlines
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_240_20
【页数】:42P;A4
【正文语种】:英语
