DIN 8552-3-2006 接头制备.铜和铜合金槽.第3部分:气焊和气体保护电弧焊

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【英文标准名称】:StandardTestMethodforConductingCyclicPotentiodynamicPolarizationMeasurementstoDeterminetheCorrosionSusceptibilityofSmallImplantDevices
【原文标准名称】:进行循环动电位极化测量以测定小型植入装置的腐蚀敏感性的标准试验方法
【标准号】:ASTMF2129-2008
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:corrosion;cyclicpolarization;medicaldevicetesting;pittingpotential;protectionpotential;restpotential;Corrosion--surgicalimplants;Cyclicpotentiodynamicpolarizationmeasurement
【摘要】:Corrosionofimplantablemedicaldevicescanhavedeleteriouseffectsonthedeviceperformanceormayresultinthereleaseofcorrosionproductswithharmfulbiologicalconsequences;therefore,itisimportanttodeterminethegeneralcorrosionbehavioraswellasthesusceptibilityofthedevicestolocalizedcorrosion.Theformingandfinishingstepsusedtocreateanimplantabledevicemayhavesignificanteffectsonthecorrosionresistanceofthematerialoutofwhichthedeviceisfabricated.Duringtheselectionprocessofamaterialforuseasanimplantabledevice,testingthecorrosionresistanceofthematerialisanessentialstep;however,itdoesnotnecessarilyprovidecriticaldataregardingdeviceperformance.Toaccommodatethewidevarietyofdeviceshapesandsizesencountered,avarietyofholdingdevicescanbeused.Notethatthemethodisintentionallydesignedtoreachconditionsthataresufficientlyseveretocausebreakdownanddeteriorationofthemedicaldevicesandthattheseconditionsmaynotbenecessarilyencounteredinvivo.Theresultsofthiscorrosiontestconductedinartificialphysiologicalelectrolytescanprovideusefuldataforcomparisonofdifferentdevicematerials,designs,ormanufacturingprocesses.However,notethatthistestmethoddoesnottakeintoaccounttheeffectsofcells,proteins,andsoforthonthecorrosionbehaviorinvivo.1.1Thistestmethodassessesthecorrosionsusceptibilityofsmall,metallic,implantmedicaldevices,orcomponentsthereof,usingcyclic(forwardandreverse)potentiodynamicpolarization.Examplesofdevicetypesthatmaybeevaluatedbythistestmethodinclude,butarenotlimitedto,vascularstents,ureteralstents(SpecificationF1828),filters,supportsegmentsofendovasculargrafts,cardiacoccluders,aneurysmorligationclips,staples,andsoforth.1.2Thistestmethodisusedtoassessadeviceinitsfinalformandfinish,asitwouldbeimplanted.Thesesmalldevicesshouldbetestedintheirentirety.Theupperlimitondevicesizeisdictatedbytheelectricalcurrentdeliverycapabilityofthetestapparatus(seeSection6).Itisassumedthattestmethods,suchasReferenceTestMethodG5andTestMethodG61havebeenusedformaterialscreening.1.3Becauseofthevarietyofconfigurationsandsizesofimplants,thistestmethodprovidesavarietyofspecimenholderconfigurations.1.4Thistestmethodisintendedforuseonimplantabledevicesmadefrommetalswitharelativelyhighresistancetocorrosion.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.^REFERENCE:ASTMStandards:D1193SpecificationforReagentWaterE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodF1828SpecificationforUreteralSten......
【中国标准分类号】:C45
【国际标准分类号】:11_040_40
【页数】:9P.;A4
【正文语种】:英语


【英文标准名称】:Compressedair-Part7:testmethodforviablemicrobiologicalcontaminantcontent.
【原文标准名称】:压缩空气.第7部分:活微生物污染物含量的试验方法
【标准号】:NFE51-307-2003
【标准状态】:现行
【国别】:法国
【发布日期】:2003-09-01
【实施或试行日期】:2003-09-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:空气;定义;测试方法;测量;压缩机;溶剂;颗粒物质的测定;测量技术;压缩空气;油;有机物质;试验;微生物分析
【英文主题词】:Air;Compressedair;Compressors;Definition;Definitions;Measurement;Measuringtechniques;Microbiologicalanalysis;Oils;Organicmatters;Particulatemattermeasurement;Solvents;Testmethods;Testing
【摘要】:
【中国标准分类号】:G86
【国际标准分类号】:71_100_20
【页数】:14P;A4
【正文语种】:其他