DIN 40146-1-1994 电信.第1部分:基本概念

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【英文标准名称】:Samplingproceduresforinspectionbyvariables-Part5:Sequentialsamplingplansindexedbyacceptancequalitylimit(AQL)forinspectionbyvariables(knownstandarddeviation)
【原文标准名称】:计量检验的抽样程序.第5部分:按接收质量限(AQL)检索的计量检验连续抽样计划的规范(已知标准偏差)
【标准号】:ISO3951-5-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-03
【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/TC69
【标准类型】:()
【标准水平】:()
【中文主题词】:接收质量限;验收抽样;合格质量级值;特性;缺陷;定义;图示;误差;检验;计量检查;抽样特性曲线;参数;质量保证;随机试样;样品试验;抽样方法;抽样表;统计质量控制;统计学;表(数据);试验
【英文主题词】:Acceptablequalitylimits;Acceptancesampling;AQL-value;Characteristics;Defects;Definitions;Diagrams;Errors;Inspection;Inspectionbyvariables;Operatingcharacteristiccurve;Parameters;Qualityassurance;Randomsamples;Sampletests;Samplingmethods;Samplingtables;Statisticalqualitycontrol;Statistics;Tables(data);Testing
【摘要】:ThispartofISO3951specifiesasystemofsequentialsamplingplans(schemes)forlot-by-lotinspectionbyvariables.Theschemesareindexedintermsofapreferredseriesofacceptancequalitylimit(AQL)values,rangingfrom0,01to10,whicharedefinedintermsofpercentnonconformingitems.TheschemesofISO3951areintendedtoinduceasupplierthroughtheeconomicandpsychologicalpressureoflotnon-acceptancetomaintainaprocessaverageatleastasgoodasthespecifiedAQLvalue,whileatthesametimeprovidinganupperlimitfortherisktotheconsumerofacceptingtheoccasionalpoorlot.Theschemesaredesignedtobeappliedtoacontinuingseriesoflots,thatis,aserieslongenoughtoallowtheswitchingrules(Clause6)tobeapplied.Theseswitchingrulesprovide:—automaticprotectiontotheconsumer(bymeansofaswitchtotightenedinspectionordiscontinuationofsamplinginspection)shouldadeteriorationinqualitybedetected;—anincentive(atthediscretionoftheresponsibleauthority)toreduceinspectioncosts(bymeansofaswitchtoreducedinspection)shouldconsistentlygoodqualitybeachieved.ThispartofISO3951isdesignedforuseunderthefollowingconditions:a)wheretheinspectionprocedureistobeappliedtoacontinuingseriesoflotsofdiscreteproductsallsuppliedbyoneproducerusingoneproductionprocess.Iftherearedifferentproducersorproductionprocesses,applythispartofISO3951toeachoneseparately;b)whereonlyasinglequalitycharacteristic,x,oftheseproductsistakenintoconsideration,whichmustbemeasurableonacontinuousscale;c)wheretheuncertaintyofthemeasurementsystemisnegligiblewithrespecttotheproductionprocessstandarddeviation;d)whereproductionisstable(understatisticalcontrol)andthequalitycharacteristic,x,isdistributedaccordingtoanormaldistribution(oracloseapproximationtothenormaldistribution)oradistributionwhichmaybemathematicallytransformedtoanormaldistribution;e)wherethestandarddeviationofthequalitycharacteristic,x,isknown;CAUTION—TheproceduresinthispartofISO3951arenotsuitableforapplicationtolotsthathavebeenscreenedpreviouslyfornonconformingitems.f)whereacontractorstandarddefinesanupperspecificationlimit,U,alowerspecificationlimit,L,orboth;anitemisqualifiedasconformingifandonlyifitsmeasuredqualitycharacteristic,x,satisfiestheappropriateoneofthefollowinginequalities:
【中国标准分类号】:A00
【国际标准分类号】:03_120_30
【页数】:36P;A4
【正文语种】:英语


【英文标准名称】:Surfacemountingtechnology-Environmentalandendurancetestmethodsforsurfacemountsolderjoint-Part1-5:Mechanicalshearfatiguetest(IEC62137-1-5:2009);GermanversionEN62137-1-5:2009
【原文标准名称】:表面贴装技术.表面贴装焊接接点用环境及疲劳试验方法.第1-5部分:机械剪切疲劳试验(IEC62137-1-5-2009).德文版本EN62137-1-5-2009
【标准号】:DINEN62137-1-5-2010
【标准状态】:现行
【国别】:德国
【发布日期】:2010-01
【实施或试行日期】:2010-01-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;温度变化;组件;连续性试验;周期的;定义;分立器件;耐久性;电气工程;电子工程;电子设备及元件;耐久试验;环境条件;环境试验;疲劳特性;热浸涂敷;集成电路;焊盘图形;无铅;寿命;材料试验;机械性能;印制电路;印制电路板;可靠性;半导体器件;剪切强度;剪应力;表面安装设备;软钎焊连接;焊接点;钎焊;表面安装;表面安装装置;试验;试验条件;热循环
【英文主题词】:Alloys;Changesoftemperature;Components;Continuitytests;Cyclic;Definitions;Discretedevices;Durability;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Endurancetesting;Environmentalcondition;Environmentaltesting;Fatiguebehaviour;Hotdipcoating;Integratedcircuits;Landpattern;Leadfree;Life(durability);Materialstesting;Mechanicalproperties;Printedcircuits;Printed-circuitboards;Reliability;Semiconductordevices;Shearstrength;Shearstress;SMD;Solderedjoints;Solderingpoints;Solderings;Surfacemounting;Surfacemountingdevices;Testing;Testingconditions;Thermalcycling
【摘要】:ThetestmethoddescribedinthispartofIEC62137appliestoareaarraypackages,suchasBGA.
【中国标准分类号】:L10
【国际标准分类号】:31_020
【页数】:24P.;A4
【正文语种】:德语