ANSI/EIA 520AAOO-1987 质量认证的专用按钮开关空白详细规范.注:1987-09-25批准
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来源:标准资料网
【英文标准名称】:BlankDetailSpecification:Special-UsePushbuttonSwitchesofCertifiedQuality/Note:Approved1987-09-25.
【原文标准名称】:质量认证的专用按钮开关空白详细规范.注:1987-09-25批准
【标准号】:ANSI/EIA520AAOO-1987
【标准状态】:现行
【国别】:美国
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Describesthetypeofpushbuttonswitchescoveredbythisdetailspecification.
【中国标准分类号】:L22
【国际标准分类号】:29_120_40
【页数】:
【正文语种】:英语
【英文标准名称】:Processmanagementforavionics-Aerospaceanddefenceelectronicsystemscontaininglead-freesolder-Part1:Preparationforalead-freecontrolplan
【原文标准名称】:航空电子设备过程管理.含无铅锡焊的航空和防御电子系统.第1部分:无铅无操纵稳定性建议
【标准号】:IEC/TS62647-1-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC107
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;航空电子设备;消费者与供货者的关系;控制计划;定义;电子的;电子工程;电子系统;适用性;无铅;管理;管理系统;程序系统;可靠性;焊接;焊锡;航天运输;系统工程;无铅的
【英文主题词】:Aerospacetransport;Airtransport;Avionics;Consumer-supplierrelations;Controlplan;Definitions;Electronic;Electronicengineering;Electronicsystems;Fitnessforpurpose;Leadfree;Management;Managementsystems;Programsystem;Reliability;Solderings;Solders;Spacetransport;Systemengineering;Unleaded
【摘要】:
【中国标准分类号】:V45
【国际标准分类号】:25_160_50;31_020;49_035
【页数】:32P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDurabilityWearTestingofSeparableElectricalConnectorSystemsUsingElectricalResistanceMeasurements
【原文标准名称】:使用电阻测量的可拆式电气连接器系统耐磨损测试用标准试验方法
【标准号】:ASTMB794-1997(2009)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:B02.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:接触电阻;电气触点;温度和湿度循环试验;磨损;磨损痕迹;加速老化测试-电气加热/接触材料;退化-电触点材料;耐久性-建筑材料/设施;电阻/电阻系数-电触点材料;性能-电气/电子系统/设施;温度试验-电触点材料;压实阻力;循环温度-湿度试验;电气连接器;电触点材料;电性能;湿度;插入/拔出循环;机械性能;温度-湿度循环试验;振动试验;磨损测试
【英文主题词】:contactresistance;electricalconnectors;electricalcontacts;temperatureandhumiditycyclingtest;wear;weartracks;Acceleratedaging/testing--electricalheating/contactmaterials;Degradation--electricalcontactmaterials;Durability--buildingmate
【摘要】:Materialsforelectricalconnectorcontactsmustsatisfyanumberofrequirementsintheareasofelectrical,mechanical,andeconomiccharacteristics.Thestabilityofelectricalpropertiesisoneofthemostimportantofthesecharacteristics.Wearofcontactsurfacesmayadverselyaffecttheseelectricalproperties,especiallyindesignswherethecontactsurfacesarerelativelythincoatings.Thistestmethodprovidesameanstocomparevariousmaterialsystemsonabasisrelevanttotheirapplicationinelectricalconnectorcontacts.Repeatedinsertionandwithdrawalofaconnectormaycausewearorothermechanicaldamagetotheelectricalcontactsurfaces,renderingthosesurfacesmoresusceptibletoenvironmentaldegradation.Thistestmethodisintendedtodetectdegradationoftheelectricalpropertiesoftheconnectorbysuchprocesses.Thistestmethoddescribesproceduresforconductingwearanddurabilitytestingofelectricalconnectors;theproceduresproducequantitativeresults.Theseresultsmaybeusedtocomparetheperformanceofdifferentconnectordesignssothatmeaningfuldesignchoicescanbemade.Suchresultsmayalsobeusedtocomparetheperformanceofaconnectortoapreviouslyestablishedstandardtoevaluatethequalityofthesamplesundertest.Thetestresultsobtainedfromthistestmethodarelimitedintheirapplicabilitytoconnectorcombinationsthatareequivalentindesignandmanufacturetothoseactuallytested.Theuseriscautionedthattheconditionsinthistestshouldbecomparedtotheconditionsthattheconnectorwillexperienceintheintendedapplicationinordertodeterminetherelevanceofthistestmethodtotheparticularneedsoftheuser.Forexample,theenvironmentalstressinthistestmethodislessseverethancertainindustrialandmarineenvironmentsandthereforetestresultsarenotdirectlyapplicabletopredicttheperformanceofproductintendedforuseinsuchareas.Itisrecommendedthatthistestmethodbeusedinoneoftwoways.First,itmaybeusedtoevaluateandreporttheperformanceofaparticularconnectorsystem.Insuchacase,itisappropriatetoreporttheresultsinatableintheformatshowninFig.1andtostatex201C;Theresultsshowninthetablewereobtainedfor(insertconnectordesignationordescription)whentestedinaccordancewithASTMStandardB794,Method__,Procedure__.x201D;Second,itmaybeusedtoimposerequirementsforacceptanceofproduct.Inthiscase,limitsforthevaluesshowninFig.1mustbeestablishedpriortoproductacceptancetesting.Suchlimitsmaybeestablishedbyvariousmethodssuchasbyevaluationofproductwhichisknowntobeacceptableorbyapplicationofappropriateexperience.Theselimitsmustbedocumentedinamannerthattheentityperformingtheproducttestcanrefertothelimitstodetermineifthetestproductconformstosuchlimits.Apurchasermaywishtosupplyatableoflimitsandincludeonthepurchaseorderastatementsimilarto:x201C;Theproduct,whentestedinaccordancewithASTMStandardB794,Method__,Procedure__,shallmeetthelimitsinthesuppliedtable.x201D;ThistablesuppliedbythepurchasermaysetlimitsonallofthevaluesinFig.1,oronlyonasubsetofthosevaluesthatthepurchaserdeemsadequatetoensuretheperformanceoftheproduct.FIG.1SampleFormatforReportingResults1.1Thistestmethodcoverstheeffectsofrepeatedinsertionandwithdrawalofseparableelectr......
【中国标准分类号】:L23
【国际标准分类号】:29_120_30
【页数】:6P.;A4
【正文语种】:
