【英文标准名称】:StandardPracticeforGeneralTechniquesofThermogravimetricAnalysis(TGA)CoupledWithInfraredAnalysis(TGA/IR)
【原文标准名称】:联用红外线分析的热重分析通用技术的标准实施规范
【标准号】:ASTME2105-2000(2005)
【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】:E13.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:infraredspectroscopy;TGA/IR;thermogravimetry
【摘要】:Thispracticeprovidesgeneralguidelinesforthepracticeofthermogravimetrycoupledwithinfraredspectrometricdetectionandanalysis(TGA/IR).Thispracticeassumesthatthethermogravimetryinvolvedinthepracticeisproper.Itisnottheintentionofthispracticetoinstructtheuseronproperthermogravimetrictechniques.PleaserefertoTestMethodE1131formoreinformation.1.1Thispracticecoverstechniquesthatareofgeneraluseinthequalitativeanalysisofsamplesbythermogravimetricanalysis(TGA)coupledwithinfrared(IR)spectrometrictechniques.ThecombinationofthesetechniquesisoftenreferredtoasTGA/IR.1.2AsampleheatedinaTGAfurnaceusingapredeterminedtemperatureprofiletypicallyundergoesoneormoreweightlosses.Materialsevolvedduringtheseweightlossesarethenanalyzedusinginfraredspectroscopytodeterminechemicalidentity.Theanalysismayinvolvecollectingdiscreteevolvedgassamplesor,morecommonly,mayinvolvepassingtheevolvedgasthroughaheatedflowcellduringtheTGAexperiment.ThegeneraltechniquesofTGA/IRandothercorrespondingtechniques,suchasTGAcoupledwithmassspectroscopy(TGA/MS),aswellas,TGA,usedinconjunctionwithGC/IR,aredescribedinthereferencedliterature(1-4).1.3Somethermalanalysisinstrumentsaredesignedtoperformboththermogravimetricanalysisanddifferentialscanningcalorimetrysimultaneously.Thistypeofinstrumentissometimescalledasimultaneousthermalanalyzer(STA).TheevolvedgasanalysisperformedwithanSTAinstrument(5)issimilartothatwithaTGA,andso,wouldbecoveredbythispractice.Withuseofasimultaneousthermalanalyzer,thecoupledmethodtypicallyislabeledSTA/IR.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Thisstatementdoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N11
【国际标准分类号】:71_040_50
【页数】:10P.;A4
【正文语种】: