ASTM_D_6374_-_22.pdf

Designation:D637422Standard Test Method forVolatile Matter in Green Petroleum Coke Quartz CrucibleProcedure1This standard is issued under the fixed designation D6374;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.Scope*1.1 This test method covers the determination of the volatilematter produced by pyrolysis or evolved when petroleum cokeis subjected to the specific conditions of the test method.1.2 The interlaboratory study for precision covered materi-als with a volatile matter concentration ranging from about 8%to 16%.1.3 Samples having a thermal history above 600 C areexcluded.1.4 This test method is empirical and requires the entire testprocedure to be closely followed to ensure that results fromdifferent laboratories will be comparable.1.5 This test method is not satisfactory for determiningde-dusting material content.1.6 The values stated in SI units are to be regarded asstandard.1.6.1 ExceptionNon-SI units are shown in parentheses forinformation only.1.7 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user to establish appropriate safety,health,and environmental practices and to determine theapplicability of regulatory limitations prior to use.1.8 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:2E11 Specification for Woven Wire Test Sieve Cloth and TestSievesE220 Test Method for Calibration of Thermocouples ByComparison Techniques3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 analysis sample,nthe reduced and divided represen-tative portion of the bulk sample,prepared for use in thelaboratory.3.1.2 analysis time,nperiod test samples are placed in thefurnace,as determined in Section 9(5 min to 10 min).3.1.3 bulk sample,nthe reduced and divided representa-tive portion of the gross sample as prepared for shipment to andreceived by a laboratory,to be prepared for analysis.3.1.4 green petroleum coke,nsame as raw petroleum coke3.1.5 gross sample,nthe original,uncrushed,representa-tive portion taken from a shipment or lot of coke.3.1.6 petroleum coke,na solid,carbonaceous residueproduced by thermal decomposition of heavy petroleum frac-tions or cracked stocks,or both.3.1.7 raw petroleum coke,npetroleum coke that has notbeen calcined.3.1.8 test sample,nthe weighed portion of the analysissample actually used in a test.3.1.9 volatile matter,nthe mass loss on heating expressedas a percent of the moisture free sample used.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.05 on Properties of Fuels,Petroleum Coke and Carbon Material.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 1999.Last previous edition approved in 2017 as D6374 12(2017)1.DOI:10.1520/D6374-22.2For 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.*A Summary of Changes section appears at the end of this standardCopyright 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.14.Summary of Test Method4.1 Volatile matter of a moisture free petroleum coke isdetermined by measuring the mass loss of the coke whenheated under the exact conditions of this test method.5.Significance and Use5.1 The volatile matter of petroleum coke affects the densityof coke particles and can affect artifacts produced from furtherprocessing of the coke.5.2 The volatile matter can be used in estimating thecalorific value of coke.6.Interferences6.1 Moisture has a double effect.The mass loss is increasedand the moisture free sample weight is decreased by theamount of moisture actually present in the test sample.6.2 Particle Size Effect:6.2.1 The particle size range of the analysis sample affectsthe volatile matter.The coarser the analysis sample,the lowerthe reported volatile matter will be.Crush analysis sample(seeAnnex A1)to pass a 0.250 mm opening(No.60)