ASTM D5083-2002 用于直边样品的热增强塑料的拉伸性特性的标准试验方法

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【英文标准名称】:StandardTestMethodforTensilePropertiesofReinforcedThermosettingPlasticsUsingStraight-SidedSpecimens
【原文标准名称】:用于直边样品的热增强塑料的拉伸性特性的标准试验方法
【标准号】:ASTMD5083-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:拉伸应变;增强塑料;试验方法;热固性聚合物
【英文主题词】:tensile;thermosetting;plastics;humidity;
【摘要】:1.1Thistestmethodcoversthedeterminationofthetensilepropertiesofthermosettingreinforcedplasticsusingtestspecimensofuniformnominalwidthwhentestedunderdefinedconditionsofpretreatment,temperature,humidity,andtesting-machinespeed.Note18212;Experiencewiththistestmethodtodatehasbeenlimitedtoglass-reinforcedthermosets.Applicabilitytoothermaterialsremainstobedetermined.1.2Thistestmethodcanbeusedfortestingmaterialsofanythicknessupto14mm(0.55in.).Note28212;Thistestmethodisnotintendedtocoverprecisephysicalprocedures.Itisrecognizedthattheconstant-rate-of-crosshead-movementtypeoftestleavesmuchtobedesiredfromatheoreticalstandpoint,thatwidedifferencesmayexistbetweenrate-of-crossheadmovementandrateofstrainbetweengagemarksonthespecimen,andthatthetestingspeedsspecifieddisguiseimportanteffectscharacteristicofmaterialsintheplasticstate.Further,itisrealizedthatvariationsinthethicknessesoftestspecimensthatarepermittedbytheseprocedures,producevariationsinthesurface-volumeratiosofsuchspecimens,andthatthesevariationsmayinfluencethetestresults.Hence,wheredirectlycomparableresultsaredesired,allsamplesshouldbeofequalthickness.Specialadditionaltestsshouldbeusedwheremoreprecisephysicaldataareneeded.Note38212;Useofthistestmethodfortestingmaterialsofthicknessesgreaterthan14mm(0.55in.)isnotrecommended.Reducingthethicknessbymachiningmaybeacceptableformaterialsofuniformreinforcementamountanddirection,butisgenerallynotrecommended.1.3Testdataobtainedbythistestmethodisrelevantandappropriateforuseinengineeringdesign.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note48212;ThistestmethodistechnicallyequivalenttoISO527-4exceptasnotedbelow:(a)ThistestmethoddoesnotincludetestingoftheTypeIdogboneshapedspecimendescribedinISO527-4.Testingofthistypeofspecimen,primarilyusedforreinforcedandun-reinforcedthermoplasticmaterials,isdescribedinTestMethodD638.(b)Thethicknessoftestspecimensinthistestmethodincludesthe2mmto10mmthicknessrangeofISO527-4,butexpandstheallowabletestthicknessto14mm.Note58212;Fortensilepropertiesofresin-matrixcompositesreinforcedwithorientedcontinuousordiscontinuoushighmodulus>20-Gpa(>3.0106-psi)fibers,testsshallbemadeinaccordancewithTestMethodD3039orISO527Part5.
【中国标准分类号】:G31
【国际标准分类号】:83_140_20
【页数】:7P.;A4
【正文语种】:


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【英文标准名称】:Electromagneticcompatibility(EMC)-Testingandmeasurementtechniques-Electricalfasttransient/burstimmunitytest-BasicEMCpublication
【原文标准名称】:电磁兼容性(EMC).第4部分:试验和测量技术.第4节:电气快速瞬时/冲击抗扰试验.基本EMC出版物
【标准号】:BSEN61000-4-4-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-11-15
【实施或试行日期】:1995-11-15
【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】:电气设备;电磁兼容性;验证;电子设备及元件;电力系统;实验室试验;可混用性;电气试验;试验条件;乱真信号;电力系统干扰;瞬时电压;电磁辐射;电路;兼容性;电磁场
【英文主题词】:influencequantities;electronicinstruments;electromagneticcompatibility;definition;interferencerejections;degreeofsharpness;measuringtechniques;immunity;basicstandard;burst;electromagnetictests;emc;electricappliances;electricalappliances;testing;testingconditions;electricalengineering;definitions;transient
【摘要】:Providestestmethodsanddefinesrangesoftestlevelswhichwillenabletheimmunityofelectrical/electronicequipmenttoelectricalfasttransient/burstphenomenatobedetermined.
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:32P.;A4
【正文语种】:英语


基本信息
标准名称:回炉碳素废钢分类及技术条件
中标分类: 冶金 >> 钢铁产品 >> 生铁
替代情况:被GB/T 4223-1996代替
发布日期:
实施日期:1984-10-01
首发日期:
作废日期:
出版日期:
页数:3页
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所属分类: 冶金 钢铁产品 生铁