1、Designation:D637412Standard 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 re
2、vision.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
3、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 to16%.1.3 Samples having a thermal history above 600C areexcluded.1.4 This test method is empirical and requires the entire testproce
4、dure 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.No other units of measurement are included in thisstand
5、ard.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 andhealth practices and to determine the applicability of regula-tory limitations prior to use.2.Referenced Documents2.1 ASTM
6、 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 samp
7、le,prepared for use in thelaboratory.3.1.2 analysis time,nperiod test samples are placed in thefurnace,as determined in Section 9(5 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
8、 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 sto
9、cks,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.4.Summary of Test Method4.1 Volat
10、ile 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 furth
11、erprocessing 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.1This test met
12、hod 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 April 15,2012.Published May 2012.Originallyapproved in 1999.L
13、ast previous edition approved in 2009 as D637499(2009).DOI:10.1520/D6374-12.2For 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 AST
14、M 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 States1 6.2 Particle Size Effect:6.2.1 The particle size range of the analysis sample affectsthe volatile matter.The coarse
15、r the analysis sample,the lowerthe reported volatile matter will be.Crush analysis sample(seeAnnex A1)to pass a 0.250-mm opening(No.60)sieve but donot overcrush.A 0.125-mm opening(No.120)sieve shouldretain 40 to 55%of the sample.Do not obtain the analysissample is by scalping and discarding a portio
16、n of the sample.6.2.2 Any segregation of particle sizes within the analysissample shall be corrected by reblending the sample just prior toweighing the test sample.6.3 The furnace shall recover to 950 6 20C before the timelimit is reached.If the furnace does not recover to the startingtemperature within a maximum of 10 min,reduce the numberof samples being analyzed until recovery is achieved within 10min(see Section 9).7.Apparatus7.1 Electric Muffle FurnaceCalibrated(Test MethodE220)and regulate
