ASTM_D_5709_-_09_2015.pdf

Designation:D570909(Reapproved 2015)Standard Test Method forSieve Analysis of Petroleum Coke1This standard is issued under the fixed designation D5709;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 details a procedure for performingparticle size distribution analysis by dry sieve testing on greenpetroleum coke with a topsize of no more than 75 mm andcalcined petroleum coke with a topsize of no more than 25 mm.Size fractions go down to and include 4.75 mm for greenpetroleum coke and 75 m for calcined petroleum coke.NOTE1To convert units,see Table 1 on nominal dimensions inSpecification E11.For example,75 mm is approximately equivalent to anominal sieve opening of 3 in.and 25 mm to a nominal sieve opening of1 in.Likewise,4.75 mm can be converted to approximately 0.187 in.and75 microns to 0.0029 in.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.2.1 The sieve size is reported as U.S.A.standard testseries in any units listed in Table 1 on nominal dimensions ofSpecification E11,or their commercial size equivalents.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:2D346 Practice for Collection and Preparation of CokeSamples for Laboratory AnalysisD2013 Practice for Preparing Coal Samples for AnalysisD2234/D2234M Practice for Collection of a Gross Sampleof CoalD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4749 Test Method for Performing the Sieve Analysis ofCoal and Designating Coal SizeE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 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.3.1.2 gross sample,nthe original,uncrushed,representa-tive portion taken from a shipment or lot of coke.3.1.3 lot,na quantity of coke to be represented by a grosssample.3.1.4 representative sample,na sample collected in such amanner that every particle in the lot to be sampled is equallyrepresented in the gross sample.3.1.5 topsize,nthe size of the smallest opening of onesieve of a series upon which is cumulatively retained a total ofless than 5%of the sample.This defined topsize is not to beconfused with the size of the largest particle in a lot.4.Summary of Test Method4.1 A representative coke sample is divided into ranges ofparticle size by the use of a series of square-holed sieves.5.Significance and Use5.1 The test method concerns the sieving of coke intodesignated size fractions for the purpose of characterizing thematerial as to its particle size distribution.It requires the use ofstandard sieves,standard sampling methods,standard samplepreparation methods,and a minimum initial sample mass basedon lot topsize.Suggestions are given for industry typical sievestacks for both green and calcined petroleum coke.5.2 Particle size distribution is significant in that manyphysical characteristics of a coke are related to such adistribution including bulk density and surface area.Nuisancecharacteristics,such as excessive fines in a lot,can also becontrolled.5.3 Results from this test method are useful in determiningwhether a coke lot meets purchase specifications,for classifi-cation purposes,and for quality control.The results of this test1This 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 Oct.1,2015.Published December 2015.Originallyapproved in 1995.Last previous edition approved in 2009 as D5709 09.DOI:10.1520/D5709-09R15.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 method can also be used to predict the performance of aparticular lot of coke in a process.6.Interferences6.1 A sieve analysis is very sensitive to the sieve cloth andsieve cloth-frame integrity.Minor separations of the sieve clothfrom the frame such as one broken sieve wire,and slightdistortions of sieve wires,can cause serious inaccuracies in thefinal