NF U47-017-2002 动物健康分析方法.用补偿固定试验测定感染马肺疫病的抗体

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【英文标准名称】:StandardTestMethodforGreenStrengthofSpecimensCompactedfromMetalPowders
【原文标准名称】:金属粉末密压试样未烧结强度的标准试验方法
【标准号】:ASTMB312-2009
【标准状态】:现行
【国别】:
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:恒定负载光束设备;湿强度;粉末冶金;横向强度;未烧结强度;铝合金管;铝管;紧密金属试样;金属粉末;断裂/断裂强度;强度;横向断裂强度
【英文主题词】:constantloadingbeamdevice;greenstrength;PM;powdermetallurgy;transversestrength;unsinteredcompact;Aluminumalloys(tube);Aluminumtube;Compactedmetalspecimens;Greenstrength;Metalpowders;Rupture/rupturestrength;Strength;Transve
【摘要】:5.1Thegreenstrengthvaluedeterminedundertheconditionsspecifiedbythistestmethodisinfluencedbythecharacteristicsofthepowder,howitcompactsunderthespecifiedconditions(i.e.,theparticletoparticlebondingthatexistsfollowingcompacting),andthelubricationsystemused.5.2Knowledgeofthegreenstrengthvalueisusefultotheproduction,characterizationandutilizationofmetalpowdersinthemanufactureofPMstructuralpartsandbearings.Thetestforgreenstrengthofacompactedmetalpowdercanbeusedto:Relatetheresistanceofapressedcompacttobreakageordamageduetohandling.Comparethequalityofametalpowderorpowdermixturefromlottolot.Determinetheeffectoftheadditionofalubricantorotherpowderstoabasepowder.Evaluatepowdermixingorblendingvariables.nbsp;nbsp;nbsp;Factorsthatareknowntoinfluencethegreenstrengthofametalpowderareparticleshape,particlesizedistributionandcompressibilityofthemetalpowder.5.5Theamountandtypeoflubricantorotheradditivesandthemixingprocedureshaveastrongeffectonthegreenstrengthofspecimensproducedfrommetalpowdermixtures.1.1Thisstandardcoversatestmethodthatmaybeusedtomeasurethetransverserupturestrengthofacompactedbutunsintered(green)testspecimenproducedfromlubricatedorunlubricatedmetalpowdersorpowdermixtures.1.2Greenstrengthismeasuredbyaquantitativelaboratoryprocedureinwhichthefracturestrengthiscalculatedfromtheforcerequiredtobreakanunsinteredtestspecimensupportedasasimplebeamwhilesubjectedtoauniformlyincreasingthree-pointtransverseloadundercontrolledconditions.1.3ThistestmethodisacompanionstandardtoTestMethodB528thatcoversthemeasurementofthetransverserupturestrengthofsinteredPMtestspecimens.1.4Withtheexceptionofdensityvalues,forwhichtheg/cm3unitistheindustrystandard,andmassmeasurementsusedtocalculatedensity,thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIequivalentsshowninparentheseshavebeenconvertedinaccordancewithIEEE/ASTMStandardSI10,maybeapproximateandareonlyincludedforinformation.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.^REFERENCE:ASTMStandards:B215PracticesforSamplingMetalPowdersB243TerminologyofPowderMetallurgyB528TestMethodforTransverseRuptureStrengthofMetalPowderSpecimensB925PracticesforProductionandPreparationofPowderMetallurgyx00028;PMx00029;TestSpecimensB962TestMethodsforDensityofCompactedorSinteredPowderMetallurgyx00028;PMx00029;ProductsUsingArchimedesx02019;PrincipleE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod【英文标准名称】:Firetests-Calibrationanduseofheatfluxmeters-Part2:Primarycalibrationmethods
【原文标准名称】:燃烧试验.热流仪的校准和使用.第2部分:主要校准办法
【标准号】:ISO14934-2-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC92
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑材料;校正;施工材料;对流;定义;测定;热照射;燃烧试验;热流;热处理;着火性;测量仪器;辐射;辐射计;传感器;应用
【英文主题词】:Buildingmaterials;Calibration;Constructionmaterials;Convection;Definition;Definitions;Determination;Exposuretoheat;Firetests;Flametest;Heatflow;Heatflux;Heattreatment;Ignitability;Measuringinstruments;Radiation;Radiometers;Transducers;Use
【摘要】:ThispartofISO14934describesthreemethodsforcalibrationoftotalhemisphericalradiometersandtotalheatfluxmetersthatareexposedtoawell-definedradiationfromaradiantheatsource.Theequipmentisdesignedtominimizeinfluencesduetoconvectiveheattransferduringcalibration.Itisimportanttonotethatwhentheinstrumentsareusedinpracticetheymeasureacombinationofradiantandconvectiveheattransfers.Thelatterwilldependonthedesignoftheheatfluxmeter,theorientation,localtemperatureandflowconditions,andonthetemperatureofthecoolingwater.
【中国标准分类号】:C80
【国际标准分类号】:13_220_40;13_220_50
【页数】:45P;A4
【正文语种】:英语