Product Code:SAE AMSP5510
Title:Packing, Preformed, Straight Thread Tube Fitting Boss, Type Hydraulic (-65Md to 160Mdf)
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers requirements for the material, design, testing and packaging of straight thread tube fitting boss packings.【英文标准名称】:StandardTestMethodforSmallPunchTestingofUltra-HighMolecularWeightPolyethyleneUsedinSurgicalImplants
【原文标准名称】:外科植入物用超高分子重量聚乙烯的小型打孔器检测的标准试验方法
【标准号】:ASTMF2183-2002(2008)
【标准状态】:现行
【国别】:美国
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:mechanicalbehavior;miniaturespecimens;smallpunchtest;UHMWPE;ultra-highmolecularweightpolyethylene;Mechanicalanalysis/testing;Miniaturespecimentesting;Small-scaletesting;Surgicalimplants;Ultra-highmolecular-weightpolyethylene(UH
【摘要】:MiniaturespecimentestingtechniquesareusedtocharacterizethemechanicalbehaviorofUHMWPEstockmaterialsandsurgicalimplantsaftermanufacture,sterilization,shelfaging,radiationcrosslinking,thermaltreatment,andimplantation(1).Furthermore,experimentalUHMWPEmaterialscanbeevaluatedafteracceleratedagingandhiporkneewearsimulation.Consequently,thesmallpunchtestmakesitpossibletoexaminerelationshipsbetweenwearperformanceandmechanicalbehaviorofUHMWPE.ThistestmethodcanalsobeusedtorankthemechanicalbehaviorofUHMWPErelativetoareferencecontrolmaterial(suchastheNISTUltra-HighMolecularWeightPolyethyleneReferenceMaterial8456).Smallpunchtestingresultsmayvarywithspecimenpreparationandwiththespeedandenvironmentoftesting.Consequently,whereprecisecomparativeresultsaredesired,thesefactorsmustbecarefullycontrolled.1.1Thistestmethodcoversthedeterminationofmechanicalbehaviorofultra-highmolecularweightpolyethylene(UHMWPE)bysmallpunchtestingofminiaturediskspecimens(0.5mminthicknessand6.4mmindiameter).ThetestmethodhasbeenestablishedforcharacterizingUHMWPEsurgicalmaterialsafterramextrusionorcompressionmolding(1,2);forevaluatingas-manufacturedimplantsafterradiationcrosslinkingandsterilization(3,4);aswellasfortestingofimplantsthathavebeenretrieved(explanted)fromthehumanbody(5,6).1.2Theparametersofthesmallpunchtest,namelythepeakload,ultimatedisplacement,ultimateload,andworktofailure,providemetricsoftheyielding,ultimatestrength,ductility,andtoughnessofUHMWPEundermultiaxialloadingconditions.BecausethemechanicalbehaviorofUHMWPEisdifferentwhenloadedunderuniaxialandmultiaxialloadingconditions(3),thesmallpunchtestprovidesacomplementarymechanicaltestingtechniquetotheuniaxialtensiletestingspecifiedformedicalgradeUHMWPEbySpecificationF648.1.3Inadditiontoitsuseasaresearchtoolinimplantretrievalanalysis,thesmallpunchtestcanbeusedasalaboratoryscreeningtesttoevaluatenewUHMWPEmaterials,suchasthosecreatedbygammaorelectronbeamirradiation(1).ThetestmethodisalsowellsuitedforcharacterizationofUHMWPEbeforeandafteracceleratedaging(forexample,GuideF2003),andinthatregarditcanproviderankingofthemechanicaldegradationofdifferentUHMWPEsamplesafteroxidativedegradation(4,7).1.4Thesmallpunchtesthasbeenappliedtootherpolymers,includingpolymethylmethacrylate(PMMA)bonecement,polyacetal,andhighdensitypolyethylene(HDPE)(8,9).However,thesmallpunchtestingofpolymersotherthanUHMWPEisbeyondthescopeofthisstandard.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Theunitsinparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C45
【国际标准分类号】:11_040_40
【页数】:5P.;A4
【正文语种】:英语