ASTM_D_6969_-_15.pdf

Designation:D696915Standard Practice forPreparation of Calcined Petroleum Coke Samples forAnalysis1This standard is issued under the fixed designation D6969;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 practice covers the preparation procedures neces-sary for the reduction and division of calcined petroleum cokesamples in order to generate appropriate analytical samplesupon which physical and chemical analytical tests will beperformed.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1552 Test Method for Sulfur in Petroleum Products byHigh Temperature Combustion and IR DetectionD2638 Test Method for Real Density of Calcined PetroleumCoke by Helium PycnometerD4292 Test Method for Determination of Vibrated BulkDensity of Calcined Petroleum CokeD4422 Test Method for Ash in Analysis of Petroleum CokeD4930 Test Method for Dust Control Material on CalcinedPetroleum CokeD4931 Test Method for Gross Moisture in Green PetroleumCokeD5004 Test Method for Real Density of Calcined PetroleumCoke by Xylene DisplacementD5056 Test Method for Trace Metals in Petroleum Coke byAtomic AbsorptionD5187 Test Method for Determination of Crystallite Size(Lcof Calcined Petroleum Coke by X-Ray DiffractionD5600 Test Method for Trace Metals in Petroleum Coke byInductively Coupled Plasma Atomic Emission Spectrom-etry(ICP-AES)D5709 Test Method for Sieve Analysis of Petroleum CokeD6376 Test Method for Determination of Trace Metals inPetroleum Coke by Wavelength Dispersive X-ray Fluo-rescence Spectroscopy3.Terminology3.1 Definitions:3.1.1 analysis sample,nthe reduced and divided represen-tative portion of the bulk sample,prepared for use in thelaboratory.3.1.2 composite sample,na sample,representative of anentire consignment of calcined petroleum coke,generated bymixing portions of gross samples from different lots together inmass fractions proportioned to the consignment.3.1.3 gross sample,nthe original,uncrushed representa-tive portion taken from a shipment or lot of coke.3.1.4 intermediate sample,na sample,representative of agross sample,upon which no analysis is to be performed,yetrequired for generation of analysis samples after undergoingfurther division and reduction.3.1.5 lot,na quantity of calcined petroleum coke to berepresented by a gross sample.3.1.6 riffle,na manual sample divider which splits thesample stream into a number of alternate elements.3.1.7 sample division,nthe process whereby a sample isreduced in mass without change in particle size.3.1.8 sample preparation,nthe process that may includedrying,crushing,division,and mixing of a gross sample for thepurpose of obtaining an unbiased analysis sample.3.1.9 sample reduction,nthe process whereby a sample isreduced in particle size by crushing or grinding withoutsignificant change in chemical properties.1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.05 on Properties of Fuels,Petroleum Coke and Carbon MaterialCurrent edition approved June 1,2015.Published September 2015.Originallyapproved in 2003.Last previous edition approved in 2008 as D6969 03(2008).DOI:10.1520/D6969-15.2For 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 States1 3.1.10 top size,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 top size is not to beconfused with the size of the largest particle in a lot.4.Significance and Use4.1 This practice provides field personnel and laboratorieswith standard procedures for dividing,reducing,and mixinggross samples and intermediate samples,such that the resultingprepared analysis samples are more uniform from laboratory tolaboratory.Adherence to these guidelines is expected to pro-vide si