1、Designation:D634921Standard Test Method forDetermination of Major and Minor Elements in Coal,Coke,and Solid Residues from Combustion of Coal and Coke byInductively Coupled PlasmaAtomic EmissionSpectrometry1This standard is issued under the fixed designation D6349;the number immediately following the
2、 designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers a proced
3、ure for the analysis ofthe commonly determined major and minor elements in coal,coke,and solid residues from combustion of coal and coke.These residues may be laboratory ash,bottom ash,fly ash,fluegas desulfurization sludge,and other combustion processresidues.NOTE1There are two interlaboratory stud
4、ies associated with this testmethod.The first was conducted in 1997(RR:D05-1035)2and the secondwas conducted in 2007(RR:D05-1032).3Sulfur trioxide was onlyincluded in the 2007 study,and that study only included combustionresidues derived from ash and no combustion residues derived from coke.1.2 Unit
5、sThe values stated in SI units are to be regardedas standard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility
6、of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization establi
7、shed in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:4D121 Terminology of Coal and CokeD346 Practice for Collection and Pre
8、paration of CokeSamples for Laboratory AnalysisD1193 Specification for Reagent WaterD2013 Practice for Preparing Coal Samples for AnalysisD3173 Test Method for Moisture in the Analysis Sample ofCoal and CokeD3174 Test Method for Ash in the Analysis Sample of Coaland Coke from CoalD3180 Practice for
9、Calculating Coal and Coke Analysesfrom As-Determined to Different BasesD7348 Test Methods for Loss on Ignition(LOI)of SolidCombustion ResiduesD7582 Test Methods for Proximate Analysis of Coal andCoke by Macro Thermogravimetric AnalysisD8146 Guide for Evaluating Test Method Capability andFitness for
10、UseE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ISO Standard:5ISO/IEC Guide 99:2007 International vocabulary of metrol-ogy-Basic and general concepts and associated terms(VIM)3.Terminology3.1 For definitions of terms used in this test method,ref
11、er toTerminology D121.4.Summary of Test Method4.1 The sample to be analyzed is ashed under standardconditions and ignited to constant mass.The ash is fused with1This test method is under the jurisdiction of ASTM Committee D05 on Coaland Coke and is the direct responsibility of Subcommittee D05.29 on
12、 MajorElements in Ash and Trace Elements of Coal.Current edition approved Sept.1,2021.Published October 2021.Originallyapproved in 1998.Last previous edition approved in 2013 as D6349 13.DOI:10.1520/D6349-21.2Supporting data have been filed at ASTM International Headquarters and maybe obtained by re
13、questing Research Report RR:D05-1035.ContactASTM CustomerService at serviceastm.org.3Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D05-1032.ContactASTM CustomerService at serviceastm.org.4For referenced ASTM standards,visit the
14、 ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.5Available from International Organization for Standardization(ISO),1 rue deVaremb,Case postale 56,CH-1211
15、,Geneva 20,Switzerland,http:/www.iso.ch.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Pri
16、nciples for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1a fluxing agent followed by dissolution of the melt in diluteacid solution.Alternatively,the ash is digested in a mixture ofhydrofluoric,nitric,and hydrochloric acids.The solution isanalyzed by inductively coupled plasma-atomic emission spec-trometry(ICP)for the elements.The basis of the method is themeasurement of atomic emissions.Aqu
