ASTM B212-2009 高流动性金属粉末表观密度的测试方法

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【英文标准名称】:StandardTestMethodforApparentDensityofFree-FlowingMetalPowdersUsingtheHallFlowmeterFunnel
【原文标准名称】:高流动性金属粉末表观密度的测试方法
【标准号】:ASTMB212-2009
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:表观密度
【英文主题词】:apparentdensity;Hallflowmeterfunnel;metalpowders;Density--metalpowders(P/M);Free-flowingmetalpowders;Metalpowders
【摘要】:Thistestmethodprovidesaguideforevaluationofanimportantphysicalcharacteristicofapowderknownastheapparentdensity.Themeasuredapparentdensitybearsarelationshiptothemassofpowderthatwillfillafixedvolumediecavity.Thedegreeofcorrelationbetweentheresultsofthistestandtheperformanceofpowdersduringusemayvarywitheachparticularapplication.Note,however,thatthepresenceofmoisture,oils,stearicacid,stearates,waxes,andthetemperatureofthepowdermassmayalterthephysicalcharacteristicsofthepowder.1.1Thistestmethoddescribesaprocedurefordeterminingtheapparentdensityoffree-flowingmetalpowders,andmixedpowders;andissuitableforonlythosepowdersthatwillflowunaidedthroughthespecifiedHallFlowmeterfunnel.1.2Withtheexceptionofdensityvalues,forwhichtheg/cm3unitistheindustrystandard,thevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesininch-poundunitsareshowninparenthesesandresultfromconversioninaccordancewithIEEE/ASTMStandardSI10.Theymaybeapproximateandareonlyforinformation.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】:英语