BS EN 60749-31-2003 半导体器件.机械和气候试验方法.塑料包封器件的易燃性(内部感应)
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【英文标准名称】:Semiconductordevices-Mechanicalandclimatictestmethods-Flammabilityofplastic-encapsulateddevices(internallyinduced)
【原文标准名称】:半导体器件.机械和气候试验方法.塑料包封器件的易燃性(内部感应)
【标准号】:BSEN60749-31-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-07-04
【实施或试行日期】:2003-07-04
【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】:热学;集成电路;电学测量;温度变化;气候试验;可燃性;半导体器件;环境试验;外观检查(试验);元部件;半导体;试验;电子工程;电子设备及元件;电气工程;耐力;易燃性;机械试验
【英文主题词】:Changesoftemperature;Climatictests;Components;Electricalengineering;Electricalmeasurement;Electronicengineering;Electronicequipmentandcomponents;Environmentaltesting;Environmentaltests;Flammability;Heat;Inflammability;Integratedcircuits;Mechanicaltesting;Plastics;Resistance;Semiconductordevices;Semiconductors;Testing;Visualinspection(testing)
【摘要】:ThispartofIEC60749isapplicabletosemiconductordevices(discretedevicesandintegratedcircuits).Theobjectofthistestistodeterminewhetherthedeviceignitesduetointernalheatingcausedbyexcessiveoverloads.NOTEThistestisidenticaltothetestmethodcontainedin1.1ofchapter4ofIEC60749(1996),apartfromchangestothisclause,theadditionoftitlestoclauses2and3andrenumbering.
【中国标准分类号】:L40
【国际标准分类号】:13_220_40;31_080_01
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforManualSamplingofPetroleumandPetroleumProducts
【原文标准名称】:石油和石油产品的手工取样用标准实施规程
【标准号】:ASTMD4057-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D02.02.0B
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:润滑剂;手工的;石油;石油产品;工艺;取样方法
【英文主题词】:boringsampling;bottle/beakersampling;corethiefspotsampling;dippersampling;extendedtubesampling;grabsampling;greasesampling;marinecustodytransfer;samplecontainers;samplehandling;samplelabeling;samplemixing;sampleshipment;sampl
【摘要】:Representativesamplesofpetroleumandpetroleumproductsarerequiredforthedeterminationofchemicalandphysicalproperties,whichareusedtoestablishstandardvolumes,prices,andcompliancewithcommercialandregulatoryspecifications.Thefollowingconceptsmustbeconsideredwhenselectingaspecificsamplingprocedure.5.2.1ObjectiveofManualSampling:5.2.1.1Theobjectiveofmanualsamplingistoobtainasmallportion(spotsample)ofmaterialfromaselectedareawithinacontainerthatisrepresentativeofthematerialintheareaor,inthecaseofrunningorall-levelsamples,asamplewhosecompositionisrepresentativeofthetotalmaterialinthecontainer.Aseriesofspotsamplesmaybecombinedtocreatearepresentativesample.5.2.2RequiredConditionsfortheApplicationofManualSampling:5.2.2.1Manualsamplingmaybeappliedunderallconditionswithinthescopeofthispractice,providedthatthepropersamplingproceduresarefollowed.5.2.2.2Inmanyliquidmanualsamplingapplications,thematerialtobesampledcontainsaheavycomponent(suchasfreewater)whichtendstoseparatefromthemaincomponent.Inthesecases,manualsamplingisappropriateunderthefollowingconditions.(1)Sufficienttimemusthaveelapsedfortheheavycomponenttoadequatelyseparateandsettle.(2)Itmustbepossibletomeasurethelevelofthesettledcomponentinordertostaywellabovethatlevelwhendrawingrepresentativesamples,unlessallorpartoftheheavycomponentwillbeincludedintheportionofthetankcontentstobeidentified.(3)Whenoneormoreoftheseconditionscannotbemet,samplingisrecommendedandisaccomplishedbymeansofanautomaticsamplingsystem(seePracticeD4177(APIMPMSChapter8.2)).1.1Thispracticecoversproceduresformanuallyobtainingrepresentativesamplesofpetroleumproductsofaliquid,semi-liquid,orsolidstatewhosevaporpressureatambientconditionsisbelow101kPa(14.7psia).Ifsamplingisfortheprecisedeterminationofvolatility,usePracticeD5842(APIMPMSChapter8.4)inconjunctionwiththispractice.Forsamplemixingandhandlingofsamples,refertoPracticeD5854(APIMPMSChapter8.3).Thepracticedoesnotcoversamplingofelectricalinsulatingoilsandhydraulicfluids.AsummaryofthemanualsamplingproceduresandtheirapplicationsispresentedinTable1.Note1-Theproceduresdescribedinthispracticemayalsobeapplicableinsamplingmostnoncorrosiveliquidindustrialchemicals,providedthatallsafetyprecautionsspecifictothesechemicalsarestrictlyfollowed.Note2-TheprocedureforsamplingliquefiedpetroleumgasesisdescribedinPracticeD1265;theprocedureforsamplingfluidpowerhydraulicfluidsiscoveredinANSIB93.19andB93.44;theprocedureforsamplinginsulatingoilsisdescribedinPracticeD923;andtheprocedureforsamplingnaturalgasisdescribedinTestMethodD1145.Note3TheprocedureforspecialfuelsamplesfortracemetalanalysisisdescribedinanappendixtoSpecificationD2880.
【中国标准分类号】:E30
【国际标准分类号】:75_080;75_100
【页数】:18P.;A4
【正文语种】:
【英文标准名称】:Dentistry;dentalcastinggoldalloys(ISO1562:1984);germanversionEN21562:1989
【原文标准名称】:牙科学.牙医用铸金合金
【标准号】:DIN13906-1-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-07
【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】:牙科学;公差;规范(审批);试样;作标记;金合金;包装件;尺寸;合金;牙科材料
【英文主题词】:goldalloys;packages;testspecimens;dentistry;alloys;specification(approval);tolerances(measurement);dimensions;marking;dentalmaterials
【摘要】:
【中国标准分类号】:C33
【国际标准分类号】:0675
【页数】:6P;A4
【正文语种】:德语
