ASTM_D_5142_-_09.pdf

Designation:D5142 09Standard Test Methods forProximate Analysis of the Analysis Sample of Coal andCoke by Instrumental Procedures1This standard is issued under the fixed designation D5142;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 These instrumental test methods cover the determinationof moisture,volatile matter,and ash,and the calculation offixed carbon in the analysis of coal and coke samples preparedin accordance with Method D2013 and Practice D346.Resultsobtained through the use of the instrumental tests have beenshown to differ from those obtained with Test Methods D3173,D3174,and D3175 on some coals and cokes.Where a relativebias between the instrumental methods and Test MethodsD3173,D3174,and D3175 for proximate analysis of coal andcoke are shown to exist,the instrumental results shall becorrected or the instrument calibrated using samples of knownproximate analysis.Test Methods D3173,D3174,and D3175shall be considered the referee test methods.The instrumentaltest methods are not applicable to thermogravimetric analyzersusing microgram size samples.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D121 Terminology of Coal and CokeD346 Practice for Collection and Preparation of CokeSamples for Laboratory AnalysisD1757 Test Method for Sulfate Sulfur inAsh from Coal andCoke3D2013 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 CoalD3175 Test Method for Volatile Matter in the AnalysisSample of Coal and CokeD3176 Practice for Ultimate Analysis of Coal and CokeD3180 Practice for Calculating Coal and Coke Analysesfrom As-Determined to Different BasesD3302 Test Method for Total Moisture in Coal3.Terminology3.1 For definitions of terms used in this test method,refer toTerminology D121.4.Summary of Test Methods4.1 Moisture is determined by establishing the loss in massof the analysis specimen of coal or coke when heated underrigidly controlled conditions of temperature,time,atmosphere,specimen mass,and equipment specifications.4.2 Volatile matter is determined by measuring the loss inmass of the moist or dried analysis specimen of coal or cokewhen heated under rigidly controlled conditions.If appropriate,the measured mass loss establishes the volatile matter aftercorrecting for the moisture content.4.3 Ash is determined by measuring the mass of the residueremaining after burning the coal or coke specimen underrigidly controlled conditions of specimen mass,temperature,time,atmosphere,and equipment specifications.4.4 In these test methods,moisture,volatile matter,and ashmay be determined sequentially in a single instrumentalprocedure.With some systems,the procedure consists ofsimply placing a specimen in the microprocessor-controlledinstrument and initiating the automatic process of analyzing thespecimen.4.5 In other systems,the analytical process is manuallycontrolled,although the instruments may have microprocessorsto assist in controlling conditions of the instrument and forcalculations.The actual analytical process can vary frominstrument to instrument,but the overall process shall providefor the determination of moisture,volatile matter,and ash asspecified in 4.1,4.2,and 4.3.1These test methods are under the jurisdiction ofASTM Committee D05 on Coaland Coke and are the direct responsibility of Subcommittee D05.21 on Methods ofAnalysis.Current edition approved Feb.1,2009.Published February 2009.Originallyapproved in 1990.Last previous edition approved in 2004 as D514204.DOI:10.1520/D5142-09.2For 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.3Withdrawn.The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for the latest information 4.6 Different procedures are described to permit conformitywith differences in instrument design and for differences insample behavior.4.7 Where a relativ