ISO 5775-1-1997 自行车轮胎和轮辋第1部分:轮胎名称和尺寸
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【英文标准名称】:Bicycletyresandrims-Part1:Tyredesignationsanddimensions
【原文标准名称】:自行车轮胎和轮辋第1部分:轮胎名称和尺寸
【标准号】:ISO5775-1-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-12
【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/TC31
【标准类型】:()
【标准水平】:()
【中文主题词】:轮胎;尺寸;道路车辆;名称与符号;定义;充气轮胎;自行车
【英文主题词】:Cycles;Definitions;Designations;Dimensions;Pneumatictyres;Roadvehicles;Tyres
【摘要】:ThispartofISO5775specifiesthedesignationsanddimensionsforpneumaticbicycletyres:—"wirededge"tyresmountedonstraightsideorcrotchettyperims,and—"beadededge"tyresmountedonhookedbeadrims.Tubularsew-uptyresandnon-pneumatictyresarenotcoveredbythispartofISO5775.
【中国标准分类号】:G41
【国际标准分类号】:83_160_10
【页数】:11P.;A4
【正文语种】:英语
【英文标准名称】:SpecificationforHorizontalEndSuctionCentrifugalPumpsforChemicalProcessReplacesB73.1M
【原文标准名称】:化工用卧式端吸离心泵规范
【标准号】:ASMEB73.1-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001-01-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);化学设备;离心泵;技术数据单;化工技术;尺寸;泵;抽吸泵
【英文主题词】:Centrifugalpumps;Chemicalequipment;Chemicaltechnology;Dimensions;Pumps;Specification(approval);Suctionpumps;Technicaldatasheets
【摘要】:ThisStandardcoverscentrifugalpumpsofhorizontal,endsuctionsinglestage,centerlinedischargedesign.ThisStandardincludesdimensionalinterchangeabilityrequirementsandcertaindesignfeaturestofacilitateinstallationandmaintenance.ItistheintentofthisStandardthatpumpsofthesamestandarddimensiondesignationfromallsourcesofsupplyshallbeinterchangeablewithrespecttomountingdimensions,sizeandlocationofsuctionanddischargenozzles,inputshafts,baseplates,andfoundationboltholes.
【中国标准分类号】:J71
【国际标准分类号】:23_080
【页数】:44P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforStaticandDynamicCharacterizationofSpinalArtificialDiscs
【原文标准名称】:人造脊椎盘的静态和动态特性的标准试验方法
【标准号】:ASTMF2346-2005
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:F04.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:特性记述;人工的;静态的;动态的;试验
【英文主题词】:artificialintervertebraldisc;dynamictestmethods;spinalimplants;statictestmethods
【摘要】:Artificialintervertebraldiscsareorthopaedicimplantsthatreplacedegeneratednaturalintervertebraldiscs.Theirfunctionistosupporttheanteriorcolumnofthespinewhileallowingmotionattheoperatedlevel.Thesetestmethodsoutlinematerialsandmethodsforthecharacterizationofthemechanicalperformanceofdifferentartificialintervertebraldiscssothatcomparisonscanbemadebetweendifferentdesigns.Thesetestmethodsaredesignedtoquantifythestaticanddynamiccharacteristicsofdifferentdesignsofartificialintervertebraldiscs.Thesetestsareconductedinvitroinordertoallowforanalysisofindividualdiscreplacementdevicesandcomparisonofthemechanicalperformanceofmultipleartificialintervertebraldiscdesignsinastandardmodel.Theloadsappliedtotheartificialintervertebraldiscsmaydifferfromthecomplexloadingseeninvivo,andtherefore,theresultsfromthesetestsmaynotdirectlypredictinvivoperformance.Theresults,however,canbeusedtocomparemechanicalperformanceofdifferentartificialintervertebraldiscs.Fatiguetestsshouldbeconductedina0.9%salineenvironmentalbathat37x00B0;Catarateof2Hzorless.Othertestenvironmentssuchasasimulatedbodyfluid,asalinedripormist,distilledwater,orothertypeoflubricationcouldalsobeusedwithadequatejustification.Likewise,alternativetestfrequenciesmaybeusedwithadequatejustification.Itiswellknownthatthefailureofmaterialsisdependentuponstress,testfrequency,surfacetreatments,andenvironmentalfactors.Therefore,whendeterminingtheeffectofchangingoneoftheseparameters(forexample,frequency,material,orenvironment),allothersshouldbekeptconstanttofacilitateinterpretationoftheresults.Inparticular,itmaybenecessarytoassesstheinfluenceoftestfrequencyondevicefracturewhileholdingthetestenvironment,implantmaterialsandprocessing,andimplantgeometryconstant.1.1Thesetestmethodsspecifythematerialsandmethodsforthestaticanddynamictestingofartificialintervertebraldiscs.1.2Thesetestmethodsareintendedtoprovideabasisforthemechanicalcomparisonamongpast,present,andfuturenon-biologicartificialintervertebraldiscs.Thesetestmethodsallowcomparisonofartificialintervertebraldiscswithdifferentintendedspinallocations(cervical,thoracic,andlumbar)andmethodsofapplicationtotheintervertebralspaces.Thesetestmethodsareintendedtoenabletheusertomechanicallycompareartificialintervertebraldiscsanddonotpurporttoprovideperformancestandardsforartificialintervertebraldiscs.1.3Thesetestmethodsdescribestaticanddynamictestsbyspecifyingloadtypesandspecificmethodsofapplyingtheseloads.Thesetestsaredesignedtoallowforthecomparativeevaluationofartificialintervertebraldiscs.1.4Thesetestmethodsdonotpurporttoaddressallclinicallyrelevantfailuremodesforartificialintervertebraldiscs,someofwhichwillbedevicespecific.Forexample,thesetestmethodsdonotaddresstheimplant''sresistancetoexpulsionorimplantwearresistanceunderexpectedinvivoloadsandmotions.Inaddition,thebiologicresponsetoweardebrisisnotaddressedinthesetestmethods.1.5Requirementsareestablishedformeasuringdisplacements,determiningtheyieldloadormoment,andevaluatingthestiffnessofartificialintervertebraldiscs.1.6Someartificialintervertebraldiscsmaynotbetestableinalltestconfigurations.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandardwiththeexceptionofangularmeasurements,whichmayber......
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:10P.;A4
【正文语种】:
