DIN 1770-1942 压制的铝和铝塑性合金矩形棒.尺寸.尺寸和形状偏差.静态值
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【英文标准名称】:Wroughtaluminiumandaluminiumalloyextrudedrectangularbars;dimensions,dimensionaldeviationsandformtolerances,staticvalues
【原文标准名称】:压制的铝和铝塑性合金矩形棒.尺寸.尺寸和形状偏差.静态值
【标准号】:DIN1770-1942
【标准状态】:作废
【国别】:
【发布日期】:
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Plastics-DeterminationofCharpyimpactproperties-Non-instrumentedimpacttest
【原文标准名称】:塑料.摆式冲击强度测定.无仪表显示的冲击试验
【标准号】:BSENISO179-1-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-03-15
【实施或试行日期】:2001-03-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高聚物;增强的材料;试验条件;尺寸;热固性聚合物;塑料;叠层板材;纤维;韧性;加强材料;薄板材;材料的机械性能;摆式冲击试验;脆性;热塑性聚合物;机械试验;优先尺寸;试样;冲击试验
【英文主题词】:Brittleness;Charpy;Charpyimpacttests;Compositematerials;Definitions;Determination;Impactresistance;Impactstrength;Impactvalue;Interpretations;Materials;Materialstesting;Plastics;Polymers;Properties;Samplepreparation;Testequipment;Testspecimens;Testing;Thermoplasticpolymers;Thermosettingpolymers;Toughness
【摘要】:1ThispartofISO179specifiesamethodfordeterminingtheCharpyimpactstrengthofplasticsunderdefinedconditions.Anumberofdifferenttypesofspecimenandtestconfigurationsaredefined.Differenttestparametersarespecifiedaccordingtothetypeofmaterial,thetypeoftestspecimenandthetypeofnotch.2Themethodisusedtoinvestigatethebehaviourofspecifiedtypesofspecimenundertheimpactconditionsdefinedandforestimatingthebrittlenessortoughnessofspecimenswithinthelimitationsinherentinthetestconditions.Itmayalsobeusedforthedeterminationofcomparativedatafromsimilartypesofmaterial.3ThemethodhasagreaterrangeofapplicabilitythanthatgiveninISO180andismoresuitableforthetestingofmaterialsshowinginterlaminarshearfractureorofmaterialsexhibitingsurfaceeffectsduetoenvironmentalfactors.4Themethodissuitableforusewiththefollowingrangeofmaterials:—rigidthermoplasticmouldingandextrusionmaterials,includingfilledandreinforcedcompoundsinadditiontounfilledtypes;rigidthermoplasticssheets;—rigidthermosettingmouldingmaterials,includingfilledandreinforcedcompounds;rigidthermosettingsheets,includinglaminates;—fibre-reinforcedthermosettingandthermoplasticcompositesincorporatingunidirectionalornon-unidirectionalreinforcementssuchasmat,wovenfabrics,wovenrovings,choppedstrands,combinationandhybridreinforcements,rovingsandmilledfibres,sheetmadefrompre-impregnatedmaterials(prepregs),includingfilledandreinforcedcompounds;—thermotropicliquid-crystalpolymers.5Themethodisnotnormallysuitableforusewithrigidcellularmaterialsandsandwichstructurescontainingcellularmaterial.Also,notchedspecimensarenotnormallyusedforlong-fibre-reinforcedcompositesorthermotropicliquid-crystalpolymers.6Themethodissuitedtotheuseofspecimenswhichmaybeeithermouldedtothechosendimensions,machinedfromthecentralportionofastandardmultipurposetestspecimen(seeISO3167)ormachinedfromfinishedorsemifinishedproductssuchasmouldings,laminatesandextrudedorcastsheet.7Themethodspecifiespreferreddimensionsforthetestspecimen.Testswhicharecarriedoutonspecimensofdifferentdimensionsorwithdifferentnotches,orspecimenswhicharepreparedunderdifferentconditions,mayproduceresultswhicharenotcomparable.Otherfactors,suchastheenergycapacityoftheapparatus,itsimpactvelocityandtheconditioningofthespecimenscanalsoinfluencetheresults.Consequently,whencomparativedataarerequired,thesefactorsmustbecarefullycontrolledandrecorded.8Themethodshouldnotbeusedasasourceofdatafordesigncalculations.Informationonthetypicalbehaviourofamaterialcanbeobtained,however,bytestingatdifferenttemperatures,byvaryingthenotchradiusand/orthethicknessandbytestingspecimenspreparedunderdifferentconditions.note:1)ISO180:2000,Plastics?DeterminationofIzodimpactstrength.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:28P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 软麻油 |
| 中标分类： |
石油 >>
石油产品 >>
工艺用油 |
| 替代情况： | 被SH/T 0355-92代替 |
| 发布日期： | |
| 实施日期： | 2000-06-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
适用范围
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前言
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引用标准
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所属分类： 石油 石油产品 工艺用油
