ASTM_D_8213_-_18.pdf

Designation:D821318Standard Test Method forDetermination of Boron in Coal1This standard is issued under the fixed designation D8213;the number immediately following the 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 describes a procedure for the analysisof total boron in coal.1.2 UnitsThe 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 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 established 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:2D121 Terminology of Coal and CokeD1193 Specification for Reagent WaterD2013 Practice for Preparing Coal Samples for AnalysisD3180 Practice for Calculating Coal and Coke Analysesfrom As-Determined to Different BasesD5865 Test Method for Gross Calorific Value of Coal andCokeD6349 Test Method for Determination of Major and MinorElements in Coal,Coke,and Solid Residues from Com-bustion of Coal and Coke by Inductively CoupledPlasmaAtomic Emission SpectrometryD6357 Test Methods for Determination of Trace Elements inCoal,Coke,and Combustion Residues from Coal Utiliza-tion Processes by Inductively Coupled Plasma AtomicEmission Spectrometry,Inductively Coupled PlasmaMass Spectrometry,and Graphite Furnace Atomic AbE144 Practice for Safe Use of Oxygen Combustion VesselsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2SAI Standard:3AS 1038.10.3 Coal and CokeAnalysis and Testing,Part10.3:Determination of Trace ElementsCoal andCokeDetermination of Boron ContentICP-AESMethod3.Terminology3.1 DefinitionsDefinitions applicable to these test meth-ods are listed in Terminology D121.4.Summary of Test Method4.1 Total boron is determined following one of five testpreparation procedures:4.1.1 Procedure AThe coal or coke to be analyzed iscombusted in a vessel with dilute nitric acid absorbing theboron vapors.The combustion vessel is rinsed into a vesselwith dilute nitric acid.4.1.2 Procedure BThe coal or coke to be analyzed isashed under controlled conditions.The residue is digested byaqua-regia,and dissolved in 1%nitric acid.4.1.3 Procedure CThe coal or coke to be analyzed isashed under controlled conditions.The residue is digested in amixture of hydrofluoric,nitric,and hydrochloric acids.4.1.4 Procedure DFollowing AS 1038.10.3,the coal orcoke to be analyzed is ignited at 800 C with Eschka mixture.The residue is dissolved in dilute hydrochloric acid.4.1.5 Procedure EThe coal or coke to be analyzed isdigested using a microwave system following manufacturersrecommendation for temperatures,power,and time,usingeither the acid mixtures specified in Test Methods D6357 orTest Method D6349,depending upon instrument capabilities.4.1.6 Combustion residues are digested on an as-receivedbasis.1This test method is under the jurisdiction of ASTM Committee D05 on Coaland Coke and is the direct responsibility of Subcommittee D05.29 on MajorElements in Ash and Trace Elements of Coal.Current edition approved Dec.1,2018.Published February 2019.DOI:10.1520/D8213-18.2For referenced ASTM standards,visit the 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.3Available from SAI Global,Level 37,680 George Street,Sydney NSW 2000,Australia,https:/ 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 Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.1.7 The concentration of boron is determined by eitherinductively coupled atomic emission spectrometry(ICPAES)or inductively coupled plasma mass spectrometry(ICPMS).Selected elements that occur at concentrations below thedetection limits of ICPAES can be quantitatively analyzed bygraphite furnace atomic absorption spec