IEC 60311 AMD 2-1993 家用或类似用途电熨斗的性能测试方法.第2次修改
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【英文标准名称】:Methodsofmeasurementofperformanceofelectricironsforhouseholdorsimilaruse;amendment2
【原文标准名称】:家用或类似用途电熨斗的性能测试方法.第2次修改
【标准号】:IEC60311AMD2-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC59E
【标准类型】:()
【标准水平】:()
【中文主题词】:性能试验;熨斗;电气工程;测量;家用电器;功能特性;家用设备
【英文主题词】:electricalhouseholdappliances;performancetesting;electricalengineering;measurement;householdequipment;functionalproperties;irons
【摘要】:
【中国标准分类号】:Y63
【国际标准分类号】:97_060
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforImpactResistanceofFlat,RigidPlasticSpecimensbyMeansofaFallingDart(TuporFallingMass)
【原文标准名称】:用下落投掷法(冲击锤或下落块)测试扁平硬质塑料试样抗冲击性的标准试验方法
【标准号】:ASTMD5628-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:镖冲击;下落块;冲击;抗冲击;平均破坏能量;平均破坏高度;平均破坏质量;硬质塑料;锤;镖冲击法;自由下落镖方法;冲击测试-塑料;平均破坏能量/高度/重量;锤(落锤);
【英文主题词】:dartimpact;falling-massimpact;impact;impactresistance;mean-failureenergy;mean-failureheight;mean-failuremass;rigidplastic;tup;Dartimpactmethod;Free-fallingdartmethod;Impacttesting--plastics;Mean-failureenergy/height/weight;
【摘要】:Plasticsareviscoelasticandthereforearelikelytobesensitivetochangesinvelocityofthemassfallingontheirsurfaces.However,thevelocityofafree-fallingobjectisafunctionofthesquarerootofthedropheight.Achangeofafactoroftwointhedropheightwillcauseachangeofonly1.4invelocity.Haganetal(2)foundthatthemean-failureenergyofsheetingwasconstantatdropheightsbetween0.30and1.4m.Thissuggeststhataconstantmass-variableheightmethodwillgivethesameresultsastheconstantheight-variablemasstechnique.Ontheotherhand,differentmaterialsresponddifferentlytochangesinthevelocityofimpact.Equivalenceofthesemethodsshouldnotbetakenforgranted.Whilebothconstant-massandconstant-heighttechniquesarepermittedbythesemethods,theconstant-heightmethodshouldbeusedforthosematerialsthatarefoundtoberate-sensitiveintherangeofvelocitiesencounteredinfalling-weighttypesofimpacttests.ThetestgeometryFAcausesamoderatelevelofstressconcentrationandcanbeusedformostplastics.GeometryFBcausesagreaterstressconcentrationandresultsinfailureoftoughorthickspecimensthatdonotfailwithGeometryFA(3).Thisapproachcanproduceapunchshearfailureonthicksheet.Ifthattypeoffailureisundesirable,GeometryFCshouldbeused.GeometryFBissuitableforresearchanddevelopmentbecauseofthesmallertestarearequired.Theconicalconfigurationofthe12.7-mmdiametertupusedinGeometryFBminimizesproblemswithtuppenetrationandstickinginfailedspecimensofsomeductilematerials.ThetestconditionsofGeometryFCarethesameasthoseofTestMethodAofTestMethodD1709.Theyhavebeenusedinspecificationsforextrudedsheeting.Alimitationofthisgeometryisthatconsiderablematerialisrequired.ThetestconditionsofGeometryFDarethesameasforTestMethodD3763.ThetestconditionsofGeometryFEarethesameasforISO6603-1.Becauseofthenatureofimpacttesting,theselectionofatestmethodandtupmustbesomewhatarbitrary.Althoughachoiceoftupgeometriesisavailable,knowledgeofthefinalorintendedend-useapplicationshallbeconsidered.Clampingofthetestspecimenwillimprovetheprecisionofthedata.Therefore,clampingisrecommended.However,withrigidspecimens,validdeterminationscanbemadewithoutclamping.Unclampedspecimenstendtoexhibitgreaterimpactresistance.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Table1ofClassificationSystemD4000liststheASTMmaterialsstandardsthatcurrentlyexist.Anytestspecimenspreparation,conditioning,dimensions,ortestingparametersorcombinationthereofcoveredintherelevantASTMmaterialsspecificationshalltakeprecedenceoverthosementionedinthistestmethod.IftherearenorelevantASTMmaterialspecifications,thenthedefaultconditionsapply.1.1Thistestmethodcoversthedeterminationofthethresholdvalueofimpact-failureenergyrequiredtocrackorbreakflat,rigidplasticspecimensundervariousspecifiedconditionsofimpactofafree-fallingdart(tup),basedontestingmanyspecimens.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibi......
【中国标准分类号】:G31
【国际标准分类号】:83_140_10
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:Aerospaceseries-Lamps,incandescent-Part014:Lamp,code303-Productstandard;GermanandEnglishversionEN2240-014:2010
【原文标准名称】:航空航天系列.白炽灯.第014部分:灯,编码303.产品标准.德文和英文版本EN2240-014-2010
【标准号】:DINEN2240-014-2010
【标准状态】:现行
【国别】:德国
【发布日期】:2010-10
【实施或试行日期】:
【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】:航空航天运输;航空运输;航空器;名称与符号;尺寸规格;电气工程;照明工程;白炽灯;灯;照明设备;产品标准;航天运输;规范(验收)
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Designations;Dimensions;Electricalengineering;Illuminationengineering;Incandescentlamps;Lamps;Lightingsystems;Productstandards;Spacetransport;Specification(approval)
【摘要】:
【中国标准分类号】:K73
【国际标准分类号】:49_060
【页数】:14P;A4
【正文语种】:德语
