ASTM D 3485-1989 预组合电线及电缆用平滑壁螺旋形聚乙烯导管

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【英文标准名称】:StandardTestMethodforTensilePropertiesofReinforcedThermosettingPlasticsUsingStraight-SidedSpecimens
【原文标准名称】:用直边样品对热固性塑料的拉伸特性的标准试验方法
【标准号】:ASTMD5083-2010
【标准状态】:现行
【国别】:美国
【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】:
【英文主题词】:Crosssectiondata/analysis;Reinforcedthermosettingplastics(RTP);Tensileproperties/testing--plastics
【摘要】:Thistestmethodisintendedfortensiletestingoffiber-reinforcedthermosettinglaminates.Forinjectionmoldedthermoplastics,bothreinforcedandunreinforced,TestMethodsD638isrecommended.Formostunidirectionalfiberreinforcedlaminates,TestMethodsD3039/D3039Mispreferred.Thistestmethodisdesignedtoproducetensilepropertydataforqualitycontrolandresearchanddevelopment.Factorsthatinfluencethetensileproperties,andshouldthereforebereported,are:material,methodsofmaterialandspecimenpreparation,specimenconditioning,testenvironment,speedoftesting,voidcontent,andvolumepercentreinforcement.Itisrealizedthatamaterialcannotbetestedwithoutalsospecifyingthemethodofpreparationofthatmaterial.Hence,whencomparativetestsofmaterialspersearedesired,thegreatestcaremustbeexercisedtoensurethatallsamplesarepreparedinexactlythesameway,unlessthetestistoincludetheeffectsofsamplepreparation.Similarly,forrefereepurposesorcomparisonswithinanygivenseriesofspecimen,caremustbetakentosecurethemaximumdegreeofuniformityindetailsofpreparation,treatment,andhandling.Note68212;PreparationtechniquesforreinforcedthermosettingplasticscanbefoundinthepartofISO1268appropriatetothemanufacturingtechniqueforthelaminate.Tensilepropertiesmayprovideusefuldataforengineeringdesignpurposes.However,becauseofthehighdegreeofsensitivityexhibitedbymanyreinforcedplasticstorateofstrainingandenvironmentalconditions,dataobtainedbythistestmethodcannotbeconsideredvalidforapplicationsinvolvingload-timescalesorenvironmentswidelydifferentfromthoseofthistestmethod.Incasesofsuchdissimilarity,noreliableestimationofthelimitofusefulnesscanbemadeformostplastics.Thissensitivitytorateofstrainingandenvironmentnecessitatestestingoverabroadload-timescale(includingimpactandcreep)andrangeofenvironmentalconditions.Note78212;Sincetheexistenceofatrueelasticlimitinplastics(asinmanyotherorganicmaterialsandinmanymetals)isdebatable,theproprietyofapplyingthetermx201C;elasticmodulusx201D;initsquotedgenerallyaccepteddefinitiontodescribethex201C;stiffnessx201D;orstress-straincharacteristicsofplasticmaterialsishighlydependentonsuchfactorsasrateofapplicationofstress,temperature,previoushistoryofspecimen,etc.However,stress-straincurvesforplastics,determinedasdescribedinthistestmethod,almostalwaysshowalinearregionatlowstresses.Astraightlinedrawntangenttothisportionofthecurvepermitscalculationofanelasticmodulusoftheusuallydefinedtype.Suchaconstantisusefulifitsarbitrarynatureanddependenceontime,temperature,andsimilarfactorsarerealized.Formanymaterials,theremaybeaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1ofClassificationD4000liststheASTMmaterialsstandardsthatcurrentlyexist.1.1Thistestmethodcoversthedeterminationofthetensilepropertiesofthermosettingreinforcedplasticsusingtestspecimensofuniformno......
【中国标准分类号】:G31
【国际标准分类号】:83_140_20
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Fixedcapacitorsforuseinelectronicequipment-Part17:Sectionalspecification:Fixedmetallizedpolypropylenefilmdielectrica.c.andpulsecapacitors(IEC60384-17:2005);GermanversionEN60384-17:2005
【原文标准名称】:电子设备用固定电容器.第17部分:分规范:金属化聚丙烯薄膜介质直流和脉冲电容器(IEC60384-17:2005)
【标准号】:EN60384-17-2005
【标准状态】:现行
【国别】:
【发布日期】:2006-07
【实施或试行日期】:2006-07-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电流;交流电压;电容器;MKP型电容器;组件;定义;介质材料;电气工程;电子工程;电子设备及元件;固定电容器;推动功能;检验;作标记;金属化的;动量;工作性能;塑料薄膜;塑料电容器;聚丙烯;特性;质量;质量评定;质量评定系统;质量保证;额定值;分规范;规范(验收);规范;试验
【英文主题词】:Alternatingcurrent;Alternatingvoltages;Capacitors;CapacitorsstyleMKP;Components;Definition;Definitions;Dielectricmaterials;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Fixedcapacitors;Impulseduty;Inspection;Marking;Metallized;Momentum;Performanceinservice;Plasticfilms;Plasticscapacitors;Polypropylene;Properties;Quality;Qualityassessment;Qualityassessmentsystems;Qualityassurance;Ratings;Sectionalspecification;Specification(approval);Specifications;Testing
【摘要】:
【中国标准分类号】:L11
【国际标准分类号】:31_060_30
【页数】:32P.;A4
【正文语种】:英语