【英文标准名称】:StandardTestMethodforAdvancedCeramicSpecificSurfaceAreabyPhysicalAdsorption
【原文标准名称】:用物理吸收法测定高级陶瓷比表面积的标准试验方法
【标准号】:ASTMC1274-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:C28.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:advancedceramics;BETsurfacearea;ceramics;multipointsurfacearea;outgassing;physicaladsorption;singlepointsurfacearea;specificsurfacearea;surfacearea
【摘要】:Bothsuppliersandusersofadvancedceramicscanbenefitfromknowledgeofthesurfaceareaofthesematerials.Resultsofmanyintermediateandfinalprocessingstepsarecontrolledby,orrelatedto,specificsurfaceareaoftheadvancedceramic.1.1Thistestmethodcoversdeterminationofsurfaceareaofadvancedceramicmaterials.Thistestmethodspecifiesgeneralproceduresthatareapplicabletomanycommercialphysicaladsorptioninstruments.Thistestmethodprovidesspecificsampleoutgassingproceduresforlistedmaterials,includingsiliconcarbide,siliconnitride,andzirconiumoxide.Itincludesadditionalgeneraloutgassinginstructionsforotheradvancedceramicmaterials.ThemultipointequationofBrunauer,EmmettandTeller(BET)alongwiththesinglepointapproximationoftheBETequationformthebasisforallcalculations.1.2Thistestmethoddoesnotincludeallexistingproceduresappropriateforoutgassingadvancedceramicmaterials.Theincludedproceduresprovidedacceptableresultsforsamplesanalyzedduringroundrobintesting.Theinvestigatormustdeterminetheappropriatenessoflistedprocedures.1.3ThistestmethodusesSIunitsasstandard.StateallnumericalvaluesintermsofSIunitsunlessspecificinstrumentationsoftwarereportssurfaceareausingalternateunits.Inthiscase,presentbothreportedandequivalentSIunitsinthefinalwrittenreport.Manyinstrumentsreportsurfaceareaasm2/g,insteadofusingcorrectSIunits(m2/kg).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q32
【国际标准分类号】:81_060_99
【页数】:4P.;A4
【正文语种】: