DIN V EN 2415-1985 航空航天.薄钢镀镉的六角开槽/齿形头螺母.等级:900MPa/235鳦
时间:2024-05-14 05:39:24 来源: 标准资料网 作者：标准资料网 阅读：9720
【英文标准名称】:Aerospace;nuts,hexagon,slotted/castellated,thin,insteel,cadmiumplated;classification:900MPa/235°C
【原文标准名称】:航空航天.薄钢镀镉的六角开槽/齿形头螺母.等级:900MPa/235鳦
【标准号】:DINVEN2415-1985
【标准状态】:作废
【国别】:德国
【发布日期】:1985-10
【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】:航天运输;尺寸;规范(验收);名称与符号;浅;钢;材料;特性;表面;螺母;齿形头紧固件;重量;六角螺母;镀镉;航空运输;表面处理;六角头紧固件;镉;作标记;剪切强度;金属覆层;六角头螺钉;螺纹;紧固件;公差(测量);航空航天运输;
【英文主题词】:
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:7P;A4
【正文语种】:德语
【英文标准名称】:Plastics-DeterminationofIzodimpactstrength
【原文标准名称】:塑料伊兆特(Izod)冲击强度的测定
【标准号】:ISO180-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-12
【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/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:热固性聚合物;韧性;试样制备;材料试验;脆性;抗冲击(强度);伊兆特冲击试验;冲击强度;复合材料;伊兆特;热塑性聚合物;仪器;试样;试验;塑料;测定;试验设备;材料;高聚物;定义
【英文主题词】:Brittleness;Compositematerials;Definitions;Determination;Impactresistance;Impactstrength;Instruments;Izod;Izodimpacttests;Materials;Materialstesting;Plastics;Polymers;Specimenpreparation;Testequipment;Testspecimens;Testing;Thermoplasticpolymers;Thermosettingpolymers;Toughness
【摘要】:1.1ThisInternationalStandardspecifiesamethodfordeterminingtheIzodimpactstrengthofplasticsunderdefinedconditions.Anumberofdifferenttypesofspecimenandtestconfigurationsaredefined.Differenttestparametersarespecifiedaccordingtothetypeofmaterial,thetypeoftestspecimenandthetypeofnotch.1.2Themethodisusedtoinvestigatethebehaviourofspecifiedtypesofspecimenundertheimpactconditionsdefinedandforestimatingthebrittlenessortoughnessofspecimenswithinthelimitationsinherentinthetestconditions.1.3Themethodissuitableforusewiththefollowingrangeofmaterials:—rigidthermoplasticmouldingandextrusionmaterials,includingfilledandreinforcedcompoundsinadditiontounfilledtypes;rigidthermoplasticssheets;—rigidthermosettingmouldingmaterials,includingfilledandreinforcedcompounds;rigidthermosettingsheets,includinglaminates;—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,whencomparativedataarerequired,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】:10P.;A4
【正文语种】:英语
【英文标准名称】:Sulphuricacidandoleumforindustrialuse;Determinationofleadcontent;Dithizonephotometricmethod
【原文标准名称】:工业用硫酸和发烟硫酸铅含量的测定双硫腙光度法
【标准号】:ISO2717-1973
【标准状态】:作废
【国别】:国际
【发布日期】:1973-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:铅;硫酸;含量测定;发烟硫酸;光度测量法(化学分析);光度测量法
【英文主题词】:photometry;sulphuricacid;oleum;lead;photometry(chemicalanalysis);determinationofcontent
【摘要】:Applicabletothedeterminationofcontentsexceeding1mg/kg.Theprinciplebasesonevaporationofthetestportion,dissolutioninhydrochloricacidandreductionbyhydroxylammoniumchloride.Formationofcomplexesofinterferringelementswithammoniumcitrateandpotassiumcyanide.ExtractionoftheleadatapHofbetween8.5and10byasolutionofdithizoneinchloroform.Eliminationofexcessdithizonebyanammoniacalsolutionofpotassiumcyanide.Photometricmeasurementinchloroformsolutionatawavelengthofabout520nm.HasalsobeenapprovedbytheIUPAC.
【中国标准分类号】:G10
【国际标准分类号】:0520;5603
【页数】:3P;A4
【正文语种】:英语