IEC 60721-3-3 AMD 2-1993 环境条件分类.第3部分:环境参数组分类及其严酷程度分级.第3节:在有气候防护地点固定使用的产品.第2次修改
时间:2024-05-29 04:41:08 来源: 标准资料网 作者：标准资料网 阅读：9886
【英文标准名称】:Classificationofenvironmentalconditions;part3:classificationofgroupsofenvironmentalparametersandtheirseverities;stationaryuseatweatherprotectedlocations;amendment2
【原文标准名称】:环境条件分类.第3部分:环境参数组分类及其严酷程度分级.第3节:在有气候防护地点固定使用的产品.第2次修改
【标准号】:IEC60721-3-3AMD2-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC75
【标准类型】:()
【标准水平】:()
【中文主题词】:影响的环境因素;分类;静止的;气候防护系统;极限(数学);环境条件;电气工程;规范
【英文主题词】:electricalengineering;environmentalcondition;environmentalconditions;specification;environmentalfactorofinfluence;limits(mathematics);stationary;weatherprotectionsystems;classification
【摘要】:
【中国标准分类号】:A21
【国际标准分类号】:1290
【页数】:9P;A4
【正文语种】:英语
【英文标准名称】:Plastics-DeterminationofIzodimpactstrength(ISO180:2000+Amd.1:2006);(includesAmendmentA1:2006)EnglishversionofDINENISO180:2007-04
【原文标准名称】:塑料.伊兆特(Izod)冲击强度测定
【标准号】:DINENISO180-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-04
【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】:脆性;复合材料;定义;测定;抗冲击(强度);冲击强度;仪器;伊兆特(Izod);伊兆特冲击试验;材料;材料试验;塑料;高聚物;试样制备;试验设备;试样;试验;热塑性聚合物;韧性
【英文主题词】:
【摘要】:1.1ThisInternationalStandardspecifiesamethodfordeterminingtheIzodimpactstrengthofplasticsunderdefinedconditions.Anumberofdifferenttypesofspecimenandtestconfigurationsaredefined.Differenttestparametersarespecifiedaccordingtothetypeofmaterial,thetypeoftestspecimenandthetypeofnotch.1.2Themethodisusedtoinvestigatethebehaviourofspecifiedtypesofspecimenundertheimpactconditionsdefinedandforestimatingthebrittlenessortoughnessofspecimenswithinthelimitationsinherentinthetestconditions.1.3Themethodissuitableforusewiththefollowingrangeofmaterials:—rigidthermoplasticmouldingandextrusionmaterials,includingfilledandreinforcedcompoundsinadditiontounfilledtypes;rigidthermoplasticssheets;—rigidthermosettingmouldingmaterials,includingfilledandreinforcedcompounds;rigidthermosettingsheets,Aincludinglaminates;—fibre-reinforcedthermosettingandthermoplasticcompositesincorporatingunidirectionalornon-unidirectionalreinforcementssuchasmat,wovenfabrics,wovenrovings,choppedstrands,combinationandhybridreinforcements,rovingsandmilledfibresandsheetmadefrompre-impregnatedmaterials(prepregs);—thermotropicliquid-crystalpolymers.1.4Themethodisnotnormallysuitableforusewithrigidcellularmaterialsandsandwichstructurescontainingcellularmaterial.Also,notchedspecimensarenotnormallyusedforlong-fibre-reinforcedcompositesorthermotropicliquid-crystalpolymers.1.5Themethodissuitedtotheuseofspecimenswhichmaybeeithermouldedtothechosendimensions,machinedfromthecentralportionofastandardmultipurposetestspecimen(seeISO3167)ormachinedfromfinishedorsemifinishedproductssuchasmouldings,laminatesandextrudedorcastsheet.1.6Themethodspecifiespreferreddimensionsforthetestspecimen.Testswhicharecarriedoutonspecimensofdifferentdimensionsorwithdifferentnotches,orspecimenswhicharepreparedunderdifferentconditions,mayproduceresultswhicharenotcomparable.Otherfactors,suchastheenergycapacityoftheapparatus,itsimpactvelocityandtheconditioningofthespecimenscanalsoinfluencetheresults.Consequently,whencomparativeQdataarerequired,thesefactorsmustbecarefullycontrolledandrecorded.1.7Themethodshouldnotbeusedasasourceofdatafordesigncalculations.Informationonthetypicalbehaviourofamaterialcanbeobtained,however,bytestingatdifferenttemperatures,byvaryingthenotchradiusand/orthethicknessandbytestingspecimenspreparedunderdifferentconditions.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:18P.;A4
【正文语种】:英语
【英文标准名称】:Toolholderswithrectangularshank,forindexableinserts;styleT
【原文标准名称】:可转位刀片用方柄刀杆.T型
【标准号】:DIN4984-13-1987
【标准状态】:现行
【国别】:德国
【发布日期】:1987-06
【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】:方颈紧固件;刀具夹持装置;工具夹;镶齿;夹盘套筒;设计;可转位刀片;切削工具;公差;机床部件;材料;形状;尺寸;作标记;夹具
【英文主题词】:Chuckbushings;Cuttingtools;Design;Dimensions;Fixtures;Indexableinserts;Inserts(cuttingtools);Machinetoolcomponents;Marking;Materials;Shape;Square-neckfasteners;Tolerances(measurement);Toolho
【摘要】:
【中国标准分类号】:J52
【国际标准分类号】:25_060_20
【页数】:4P;A4
【正文语种】:德语