【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】:


【英文标准名称】:Surfaceactiveagents-Determinationoflowboilingsolventsinliquidformulations-Gaschromatographicmethod;GermanversionEN14667:2005
【原文标准名称】:表面活性剂.液体成分中低沸点溶剂的测定.气相色谱法
【标准号】:EN14667-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-09
【实施或试行日期】:
【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】:分析方法;抽样方法;气相色谱仪;试验设备;痕量元素分析;分析;洗涤剂;表面活性剂;校正;气相色谱法;低沸点;试样制备;数学计算;化学分析和试验;液态材料;含量测定;溶剂;材料试验;试验;定义
【英文主题词】:Analysis;Calibration;Chemicalanalysisandtesting;Definition;Definitions;Detergents;Determinationofcontent;Gaschromatography;Gas-phasechromatograph;Liquidmaterials;Low-boiling;Materialstesting;Mathematicalcalculations;Methodsofanalysis;Samplingmethods;Solvents;Specimenpreparation;Surfactants;Testequipment;Testing;Traceelementanalysis
【摘要】:
【中国标准分类号】:G72
【国际标准分类号】:71_100_40
【页数】:12P.;A4
【正文语种】:英语