BS EN 60749-4-2002 半导体器件.机械和气候试验方法.湿热、稳态态、高加速应力试验(HAST)
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【英文标准名称】:Semiconductordevices-Mechanicalandclimatictestmethods-Dampheat,steadystate,highlyacceleratedstresstest(HAST)
【原文标准名称】:半导体器件.机械和气候试验方法.湿热、稳态态、高加速应力试验(HAST)
【标准号】:BSEN60749-4-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-09-10
【实施或试行日期】:2002-09-10
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气候试验;半导体器件;集成电路;电学测量;振动;气候;环境试验;组件;电子工程;电气工程;试验;半导体;电子设备及元件;机械试验
【英文主题词】:
【摘要】:ThispartofIEC60749providesahighlyacceleratedtemperatureandhumiditystresstest(HAST)forthepurposeofevaluatingthereliabilityofnon-hermeticpackagedsemiconductordevicesinhumidenvironments.
【中国标准分类号】:L40
【国际标准分类号】:31_080_01
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDetectingGlycol-BaseAntifreezeinUsedLubricatingOils
【原文标准名称】:检测已用润滑油中乙二醇基防冻剂的标准试验方法
【标准号】:ASTMD2982-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:D02.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:glycol-baseantifreeze;glycol-basecoolant;usedlubricatingoil;Enginecoolants/concentrates;Ethyleneglycol;Glycol-baseantifreeze;Lubricatingoils;Mineraloils;Usedlubricatingoils
【摘要】:Leakageofglycol-baseantifreezeintothecrankcaseisseriousbecausethecoolanttendstointerferewiththelubricantanditsabilitytolubricate;italsopromotessludging.Ethyleneglycolpresentinthecoolantcanincreasevarnishdepositformationinthecrankcaseasaresultofglycoloxidationandtheinteractionbetweenglycolandlubricant.Furthermore,becauseglycolisahigherboilingmaterialthanwater,itwilltendtostaylongerinthecrankcaseoilthanwater.Lubricantdisplacement,sludging,anddepositformationallleadtoenginemalfunctionandpossibleseizure.Thesetestsaredesignedtodetectglycol-basecoolantcontaminationevenatlowlevelsbecauseearlydetectionenablescorrectivemeasurestobetakentopreventleakingcoolantfromaccumulatingandseriouslydamagingtheengine.Thesetestmethodsarealsosignificantbecausethereagentscanbepackagedasafieldkit,andtheprocedurecanbefollowedatthesitewherethereisaconcern.1.1Thesetestmethodscoverthequalitativedeterminationofglycol-baseantifreezeinusedlubricatingoils(mineralbase)bytwoprocedures,oneusingreagentsintabletformandtheotherusinglaboratoryshelfreagents.Principallythetestmethodsdetectethyleneglycolbutwillalsodetectother1,2-glycolsthatmaybepresent.1.1.1Whenapositiveresultisobtainedandasampleoftheunusedoilisavailable,theunusedoilisalsotestedandusedasareference.Note18212;Sincetheinceptionofthistestmethod(1971),therehavebeenmanychangesinbasestocktechnologyandadditivetechnology.Therefore,whenavailable,thenew,unusedoil,orasampleofthesameusedoil,knowntonotcontainantifreeze,istestedasareference.1.2Thetabletprocedure(ProcedureA)issensitivetoabout100mg/kgandtheshelfreagentprocedure(ProcedureB)toabout300mg/kgofethyleneglycol.1.3Glycol-basedcoolantleaksintocrankcasesmaynotbedetectedormayresultinalowbiasusingthesetestmethodsiftheglycolhasdegradedorbeenthermallyorotherwiseoxidized.Theconditionsincrankcasesmaybesuchthatcontaminantglycolsareoxidizedordegradedtoadegreetowhichthecolorindicatorreactiondoesnotoccurorisbiasedenoughsoastonottriggerthecolorchange.Othertestmethodsforthedetectionofcoolantsorcoolantadditivesinlubricatingoilsshouldbeusediftheresultsfromthesetestmethodsaloneareinconclusiveorquestionable.1.4Carbohydratessuchassugarsandsugar-containingsubstancesaresometimesusedforsabotagepurposes.Ifthepresenceofthesesubstancesissuspected,ProcedureAcontainsamodificationtoremovetheseinterferences.1.5Bothproceduresareadaptabletofieldkituse,andbriefdescriptionsforconvertingtofieldkitformaregiveninAnnexA1.Commercialfieldtestingkitsareavailable.,1.6Theresultsobtainedbythismethodarequalitativeexpressions.However,forthepreparationofreagentsandintheprocedures,acceptableSIunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:Automaticelectricalcontrolsforhouseholdandsimilaruse;part2:particularrequirementsforthermalprotectorsforballastsfortubularfluorescentlamps
【原文标准名称】:家用和类似用途的电气自动控制器第2-3部分:管式荧光灯镇流器热保护器的特殊要求
【标准号】:IEC60730-2-3-1990
【标准状态】:作废
【国别】:国际
【发布日期】:1990-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC72
【标准类型】:()
【标准水平】:()
【中文主题词】:放电灯;热稳定性;家用;电气工程;热防护器;定义;控制装置;灯;控制设备;分类系统;电灯;保护设备;镇流器;规范(批准);电气保护设备;荧光灯;串联电感器;容许的
【英文主题词】:
【摘要】:IntendedtobeusedinconjunctionwithIEC745-1.Part2supplementsormodifiesthecorrespondingclausesinIEC745-1,soastoconvertthatpublicationintotheIECstandard:Safetyrequirementsforthermalprotectorsforballastsfortubularfluoros
【中国标准分类号】:K74
【国际标准分类号】:29_140_99;97_120
【页数】:27P;A4
【正文语种】:英语
