ASTM E1508-1998(2008) 用能量分散能谱学作定量分析的标准指南

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【英文标准名称】:StandardGuideforQuantitativeAnalysisbyEnergy-DispersiveSpectroscopy
【原文标准名称】:用能量分散能谱学作定量分析的标准指南
【标准号】:ASTME1508-1998(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:E04.11
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:EDS;elementalanalysis;energy-dispersivespectroscopy;lightelement;matrixcorrection;microanalysis;phi-rho-z;quantitativeanalysis;spectrum;standardlessanalysis;standards;Xray;X-raymicroanalysis;ZAF^INDEXTERMS:EPMA(elec
【摘要】:Thisguidecoversproceduresforquantifyingtheelementalcompositionofphasesinamicrostructure.Itincludesbothmethodsthatusestandardsaswellasstandardlessmethods,anditdiscussestheprecisionandaccuracythatonecanexpectfromthetechnique.TheguideappliestoEDSwithasolid-stateX-raydetectorusedonanSEMorEPMA.EDSisasuitabletechniqueforroutinequantitativeanalysisofelementsthatare1)heavierthanorequaltosodiuminatomicweight,2)presentintenthsofapercentorgreaterbyweight,and3)occupyingafewcubicmicrometres,ormore,ofthespecimen.Elementsofloweratomicnumberthansodiumcanbeanalyzedwitheitherultra-thin-windoworwindowlessspectrometers,generallywithlessprecisionthanispossibleforheavierelements.Traceelements,definedasx003C;1.0%,2canbeanalyzedbutwithlowerprecisioncomparedwithanalysesofelementspresentingreaterconcentration.1.1Thisguideisintendedtoassistthoseusingenergy-dispersivespectroscopy(EDS)forquantitativeanalysisofmaterialswithascanningelectronmicroscope(SEM)orelectronprobemicroanalyzer(EPMA).Itisnotintendedtosubstituteforaformalcourseofinstruction,butrathertoprovideaguidetothecapabilitiesandlimitationsofthetechniqueandtoitsuse.Foramoredetailedtreatmentofthesubject,seeGoldstein,etal.ThisguidedoesnotcoverEDSwithatransmissionelectronmicroscope(TEM).1.2Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N30
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语