EN ISO 4871-2009 声学.机器和设备噪声发射值的标示和验证(ISO4871:1996),德文版本ENISO4871:2009
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来源:标准资料网
【英文标准名称】:Acoustics-Declarationandverificationofnoiseemissionvaluesofmachineryandequipment(ISO4871:1996);EnglishversionofDINENISO4871:2009-11
【原文标准名称】:声学.机器和设备噪声发射值的标示和验证(ISO4871:1996),德文版本ENISO4871:2009
【标准号】:ENISO4871-2009
【标准状态】:现行
【国别】:
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Batches;Conformitytesting;Dataofthemanufacturer;Definitions;Emission;Emissionvalues;Ergonomics;Generalconditions;Information;Instruments;Labelling(process);Machinenoise;Machines;Noise;Noiseemissions;Noise(environmental);Noisereduction;Occupationalsafety;Operatingstations;Pollutioncontrol;Safetyofmachinery;Soundlevel;Soundpower;Soundpressure;Soundpressurelevel;Soundpropagation;Statement;Testing;Verification;Workingplaces
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:24P.;A4
【正文语种】:英语
【英文标准名称】:Vitreousandporcelainenamels-Determinationofresistancetohotsodiumhydroxide(ISO2745:1998)
【原文标准名称】:釉瓷和搪瓷.耐热氢氧化钠性能的测定
【标准号】:DINISO2745-1999
【标准状态】:作废
【国别】:德国
【发布日期】:1999-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:氢氧化钠;高温试验;耐化学性;釉层;瓷漆;非金属覆层;碱;陶瓷涂层;耐化学性试验;防护覆层;强碱;苛性钠溶液;测定;试验;试验;耐碱试验;化学分析和试验;耐力
【英文主题词】:
【摘要】:
【中国标准分类号】:Y26
【国际标准分类号】:25_220_50
【页数】:6P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforMeasuringFrettingCorrosionofOsteosynthesisPlatesandScrews
【原文标准名称】:测量接骨用板和钉磨蚀的标准试验方法
【标准号】:ASTMF897-2002(2007)
【标准状态】:现行
【国别】:
【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】:医疗设备;腐蚀;医学科学;螺钉;试验;板;测量
【英文主题词】:corrosion-surgicalimplants;cracking-stress-corrosion;loadingtests-surgicalmaterials/applications;orthopaedicmedicaldevices-boneplates;orthopaedicmedicaldevices-bonescrews;osteosynthesis;seals;stress-metallicmaterials;testingmethods-surg
【摘要】:Itiswellknownfromexaminationofimplantsafterusethatplatesandscrewsusedforosteosynthesisaresubjectedtometallossduetocorrosionattheplate-screwinterfaces.Oneofthemechanismsofthiscorrosiveattackisfrettingcorrosionduetorelativemotion(micromotion)betweenthescrewheadsandplate-holecountersinks.Itisalsoknownthatreleaseofcorrosionproductsintothetissuessurroundinganimplantmayhaveadverseeffectsonlocaltissueorhavesystemiceffects.Thus,itisimportanttominimizetheamountoftissueexposuretocorrosionproducts.ScrewsandplatesareavailableindifferentconfigurationsinaccordancewithSpecificationsF543andF382.Thistestmethodmaybeusedtoevaluatetheeffectsofdifferentcombinationsofscrewandplatedesigns.Asnewmaterialsanddevicedesignsaredevelopedforuseinthetreatmentoffracturedbones,itisimportanttodeterminetheeffectsthesedevelopmentshaveontheamountofmetallossduetofrettingcorrosion.Thistestmethodprovidesastandardizedscreeningtestforrankingmetalplatesandscrewsintermsofresistancetofrettingcorrosionandfordeterminingtheinfluenceofdifferentsolutionsonfrettingcorrosionrates.Thistestmethodmayalsobeusedtogeneratecorrosionproductseitherforchemicalanalysisoftheproductsorfortestingforbiologicalreactionstocorrosionproductsusinganimalorcellculturemethods.Itiswellknownthatfrettingcorrosionratesdependonnormalloadorpressure,frequency,slidingamplitude,materials,surfacetreatments,andenvironmentalfactors.(4)Therefore,whendeterminingtheeffectofchangingoneoftheseparameters(forexample,materialorenvironment),allothersmustbekeptconstanttofacilitateinterpretationoftheresults.1.1Thistestmethodprovidesascreeningtestfordeterminingtheamountofmetallossfromplatesandscrewsusedforosteosynthesis(internalfixationofbrokenbones)duetofrettingcorrosioninthecontactareabetweenthescrewheadandtheplateholecountersinkarea.Theimplantsareusedintheformtheywouldbeusedclinically.Themachinedescribedgeneratesarelativemotionbetweenplatesandscrewswhichsimulatesonetypeofmotionpatternthatcanoccurwhenthesedevicesareusedclinically.1.2Sincetheenvironmentalandstressconditionsusedinthistestmethodmaynotbeidenticaltothoseexperiencedbyboneplatesinthehumanbody,thistestmethodmayproducefrettingcorrosionratesthatarelowerorhigherthanthoseexperiencedinpractice.Therecommendedaxialloadof400Nwasselectedasbeinginarangewheretheamountoffrettingcorrosionisnotsensitivetosmallchangesinaxialload(1).Thecombinationoftherecommendedloadandangulardisplacementaresuchthatameasurableamountoffrettingcorrosionofsurgicalalloysoccursinacomparativelyshortperiodoftime(7to14days).(Refs1-3)1.3Thedeviceisdesignedsoastofacilitatesterilizationofthetestspecimensandtestchamberstopermittestingwithproteinaceoussolutionsthatwouldbecomecontaminatedwithmicrobialgrowthinnonsterileconditions.1.4Thespecimensusedcanbestandardosteosynthesisimplantsorcanbematerialsfabricatedintotheappropriateshapes.1.5Thistestmethodmaybeusedfortestingthefrettingcorrosionofmetalplatesandscrewsofsimilarordifferentalloycompositions,oritmaybeusedfortestingthefrettingcorrosionofmetal-nonmetalcombinations.Thistestmethodmayalsobeusedforwearordegradationstudiesofnonmetallicmaterials.Thistestmethodmaybeusedasascreeningtesttorankthecorrosivitiesofsalineorproteinace......
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:5P.;A4
【正文语种】:
