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【英文标准名称】:StandardTestMethodforPlastics:DynamicMechanicalProperties:InTension
【原文标准名称】:塑料的标准试验方法:动力机械性能:拉伸
【标准号】:ASTMD5026-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:流动性;塑料;抗拉试验;试验;热固性聚合物
【英文主题词】:dynamicmechanicalrheologicalproperties;elastic;lineardisplacement;loss;storagemodulus;tandelta;tension;viscoelasticbehavior
【摘要】:Thistestmethodprovidesasimplemeansofcharacterizingthethermomechanicalbehaviorofplasticmaterialsusingverysmallamountsofmaterial.Thedataobtainedmaybeusedforqualitycontrol,researchanddevelopment,aswellastheestablishmentofoptimumprocessingconditions.Dynamicmechanicaltestingprovidesasensitivemethodfordeterminingthermomechanicalcharacteristicsbymeasuringtheelasticandlossmoduliasafunctionoffrequency,temperature,ortime.Plotsofmoduliandtandeltaofamaterialversusthesevariablescanbeusedtoprovidegraphicalrepresentationindicativeoffunctionalproperties,effectivenessofcure(thermosettingresinsystem),anddampingbehaviorunderspecifiedconditions.Thistestmethodcanbeusedtoassess:5.3.1Modulusasafunctionoftemperature,5.3.2Modulusasafunctionoffrequency,5.3.3Theeffectsofprocessingtreatment,includingorientation,5.3.4Relativeresinbehavioralproperties,includingcureanddamping,5.3.5Theeffectsofsubstratetypesandorientation(fabrication)onelasticmodulus,and5.3.6Theeffectsofformulationadditiveswhichmightaffectprocessabilityorperformance.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,ortestingparameters,orcombinationthereof,coveredintherelevantASTMmaterialsspecificationshalltakeprecedenceoverthosementionedinthistestmethod.IftherearenorelevantASTMmaterialspecifications,thenthedefaultconditionsapply.1.1Thistestmethodoutlinestheuseofdynamicmechanicalinstrumentationforgatheringandreportingtheviscoelasticpropertiesofthermoplasticandthermosettingresinsandcompositesystemsintheformofrectangularspecimensmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Thetensiledatageneratedmaybeusedtoidentifythethermomechanicalpropertiesofaplasticmaterialorcompositionusingavarietyofdynamicmechanicalinstruments.1.2Thistestmethodisintendedtoprovideameansfordeterminingviscoelasticpropertiesofawidevarietyofplasticmaterialsusingnonresonantforced-vibrationtechniques,inaccordancewithPracticeD4065.Plotsoftheelastic(storage)modulus;loss(viscous)modulus;complexmodulusandtandeltaasafunctionoffrequency,time,ortemperatureareindicativeofsignificanttransitionsinthethermomechanicalperformanceofthepolymericmaterialsystem.1.3Thistestmethodisvalidforawiderangeoffrequencies,typicallyfrom0.01to100Hz.1.4Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciled,withoutchangingtheobserveddata,byreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.1.5Duetopossibleinstrumentationcompliance,thedatageneratedareintendedtoindicaterelativeandnotnecessarilyabsolutepropertyvalues.1.6Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninbracketsareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ThistestmethodistechnicallyequivalenttoISO6721,Part4.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Coredrillingmachinesonstand-Safety;GermanversionEN12348:2000
【原文标准名称】:立式岩芯钻机.安全性
【标准号】:DINEN12348-2000
【标准状态】:作废
【国别】:德国
【发布日期】:2000-11
【实施或试行日期】:2000-11-01
【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】:机床;文献工作;修芯钻;安全;定义;定义;危险防护;钻床;危害;安全工程;作标记;事故预防;柱式钻床;建筑工具;安全要求;工作场所安全
【英文主题词】:Accidentprevention;Anatomicalconfigurations;Buildingimplements;Containers;Coredrills;Cutting;Definitions;Drillingmachines;Electricalequipment;Electricalsafety;Erecting(constructionoperation);Fire;Firehazards;Firerisks;Handles;Hazards;Heat;Heating;Machinetools;Machines;Marking;Mechanicalcrimping;Noise(environmental);Operation;Operationalinstructions;Pillardrillingmachines;Protectionagainstdanger;Safety;Safetyengineering;Safetyrequirements;Shearing;Slipping;Sound;Surfaces;Temperature;Transportable;Workplacesafety
【摘要】:Thedocumentappliestocoredrillingmachinesontransportablestand,generallywithwatersupply,usedtodrillintostone,concreteandsimilarmaterials.Itappliestocoredrillingmachinesequippedwithadiamondcoredrillbit,intendedtodrillholesinstationaryposition.
【中国标准分类号】:D92
【国际标准分类号】:25_080_40
【页数】:14P.;A4
【正文语种】:德语