ASTM E487-2009 化学材料的恒温稳定性的标准试验方法
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【英文标准名称】:StandardTestMethodforConstant-TemperatureStabilityOfChemicalMaterials
【原文标准名称】:化学材料的恒温稳定性的标准试验方法
【标准号】:ASTME487-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E27.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:constanttemperaturestability(CTS);differentialscanningcalorimetry(DSC);differentialthermalanalysis(DTA);hazardpotential;reactions,thermal;thermalanalysis;thermalhazard;thermalstability;Chemicals(fire/flammabilitytesting);Constant-
【摘要】:Thistestmethodisausefuladjuncttodynamicthermalteststhatareperformedunderconditionsinwhichthesampletemperatureisincreasedcontinuouslyataprogrammedrate.Resultsobtainedunderdynamictestconditionspresentdifficultiesindeterminingthetemperatureatwhichanexotherminitiatesbecauseonsettemperatureisdependentonheatingrate.Thetestmethoddescribedinthepresentstandardattemptstodeterminetheonsettemperatureunderisothermalconditionswheretheheatingrateiszero.1.1Thistestmethoddescribestheassessmentofconstant-temperaturestabilityofchemicalmaterialsthatundergoexothermicreactions.Thetechniquesandapparatusdescribedmaybeusedonsolids,liquids,orslurriesofchemicalsubstances.1.2Whenaseriesofmaterialsistestedbythistestmethod,theresultspermitorderingthematerialsrelativetoeachotherwithrespecttotheirthermalstability.1.3LimitationsofTest:1.3.1Thistestmethodislimitedtoambienttemperaturesandabove.1.3.2Thistestmethoddeterminesneitherasafestoragetemperaturenorasafeprocessingtemperature.Note18212;Asafestorageorprocessingtemperaturerequiresthatanyheatproducedbyareactionberemovedasfastasgeneratedandthatproperconsiderationbegiventohazardsassociatedwithreactionproducts.1.3.3Whenthistestmethodisusedtoordertherelativethermalstabilityofmaterials,thetestsmustberununderthesameconfinementcondition(see8.3).1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandardshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.1.6Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:07_030
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforEstimatingthePowerSpectralDensityFunctionandRelatedFinishParametersfromSurfaceProfileData
【原文标准名称】:从表面轮廓数据估测功率谱密度函数和有关的精整参数的标准指南
【标准号】:ASTMF1811-1997(2002)
【标准状态】:作废
【国别】:
【发布日期】:1997
【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】:F01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:估算;均方根值;均方根;地面坡度;粗糙度;表面粗糙度;表面统计;预测者;功率谱密度;斜度
【英文主题词】:estimates;estimators;powerspectraldensity;rmsvalues;rootmeansquare;roughness;slope;surfaceroughness;surfaceslope;surfacestatistics
【摘要】:ThisstandardwastransferredtoSEMI(www.semi.org)May20031.1Thispracticedefinesthemethodologyforcalculatingasetofcommonlyusedstatisticalparametersandfunctionsofsurfaceroughnessfromasetofmeasuredsurfaceprofiledata.
【中国标准分类号】:A42
【国际标准分类号】:17_040_20
【页数】:13P.;A4
【正文语种】:
【英文标准名称】:StandardPracticeforEstablishingAllowableStressesforRoundTimbersforPilesfromTestsofFull-SizeMaterial
【原文标准名称】:标准材料试验中桩用圆木允许应力的建立用标准实施规程
【标准号】:ASTMD7381-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:允许;桩;锯成木材;应力;试验;木料;木材
【英文主题词】:design;piles;stresses;timber
【摘要】:Thispracticeisprimarilyintendedforusebyassociations,third-partygradingagencies,technicalsocietiesandothergroupsthatdevelopnationaldesignstandardsanduserecommendationsforroundtimberpiles.Thispracticeprovidesproceduresforestablishingcompressionparalleltograinandbendingstressesforroundtimberpilesincluding:samplingofmaterialfortesting;methodsoftestandpropertycalculationprocedures;distributionanalysisoftestdata;proceduresfordeterminingadjustmentsforcriticalsectionlocation;pileoversize,loadsharingandtreatment;andproceduresforderivingallowablestresses.Inusingallowablestressesestablishedunderthispractice,factorsspecifictoeachendusewhichmayaffecttheperformanceofthepilesystemshallbeconsideredbythedesigner.Suchfactorsincludethelocationofthecriticalsection,thebearingcapacityofthesoil,theabilityofthepiletowithstanddrivingforces,thepropertiesofthecaporloaddistributiveelementtyingpilestogetherandtheloadingandconditionsofservice.1.1Thispracticecontainsproceduresforestablishingallowablecompressionparalleltograinandbendingstressesforroundtimbersusedforpiling,basedonresultsfromfull-sizetests.Note1AllowablestressesforcompressionperpendiculartograinandshearpropertiesareestablishedinaccordancewiththeprovisionsofPracticeD2899.1.2Stressesestablishedunderthispracticeareapplicabletopilesconformingtothesize,quality,straightness,spiralgrain,knot,shakeandsplitprovisionsofSpecificationD25.1.3AcommentaryonthepracticeisavailablefromASTMInternational.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B68
【国际标准分类号】:79_040
【页数】:6P.;A4
【正文语种】: