ASTM_D_167_-_D_167M_-_21a.pdf

Designation:D167/D167M21aStandard Test Method forApparent and True Specific Gravity and Porosity of LumpCoke1This standard is issued under the fixed designation D167/D167M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of apparentspecific gravity(Sections 5 to 9)and true specific gravity(Sections 10 to 14)of lump coke larger than 25 mm 1 in.sizeand calculating porosity(Section 15)from the specific gravitydata.1.2 UnitsThe values stated in either SI units or non-SIunits are to be regarded separately as standard.The valuesstated in each system are not necessarily exact equivalents;therefore,to ensure conformance with the standard,eachsystem shall be used independently of the other,and valuesfrom the two systems shall not be combined.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 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:2D121 Terminology of Coal and CokeD346 Practice for Collection and Preparation of CokeSamples for Laboratory AnalysisD1193 Specification for Reagent Water3.Terminology3.1 For definitions of terms used in this test method,refer toTerminology D121.4.Significance and Use4.1 Apparent and true specific gravity,as determined by thistest method,are influenced by the type of coals carbonized andtheoperatingandpreparationalconditionsofthatcarbonization,that is,charge bulk density,heating rate,andpulverization level.In turn,these properties directly influencethe performance in processes using coke.APPARENT SPECIFIC GRAVITY5.Apparatus5.1 The apparatus for the determination of the apparentspecific gravity of coke shall consist of the following:5.1.1 AnEllipticalorRectangularCross-SectionedContainer,approximately 560 mm 22 in.in length,280 mm11 in.in width,and a minimum of 330 mm 13 in.in height,provided with a spout consisting of a short 13 mm 0.5 in.nipple extending horizontally from the container about267 mm 10.5 in.above the bottom.5.1.2 Wire Cage or Basket,of about 13 mm 0.5 in.square-mesh screen wire cloth provided with a cover and two longhandles,suitable for holding the entire sample of coke and somade as to fit inside the container below the spout.5.1.3 Bucket or Other Vessel,11 L 3.0 gal,suitable forreceiving the displaced water.5.1.4 Pan,about 380 mm 15 in.square and 76 mm3.0 in.in height or the equivalent for containing the cokeduring the determination of its mass.5.1.5 Balance,sensitive to 0.05 kg 0.1 lb.6.Sampling at Source6.1 When the porosity test is desired on run-of-oven coke,the sample shall be collected from the coke wharf.6.1.1 By-Product CokeAbout 20 kg 50 lb of representa-tive pieces of coke shall be selected from the coke wharf foreach test.This is best accomplished by dividing the coke on thewharf into approximately equal areas and selecting an equalnumber of pieces from each area.Each piece of coke selected1This test method is under the jurisdiction of ASTM Committee D05 on Coaland Coke and is the direct responsibility of Subcommittee D05.15 on MetallurgicalProperties of Coal and Coke.Current edition approved May 1,2021.Published May 2021.Originallyapproved in 1923.Last previous edition approved in 2021 as D167/D167M 21.DOI:10.1520/D0167_D0167M-21A.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 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.1shall be approximately equal in length to one half of the widthof the coke ovens,and shall show a“cauliflower”end producedat the walls of the ovens,and an“inner”end produced at thecenter of the ovens.7.Sampling at Delivery7.1 If the porosity test is desired on coke for furnace orcupola use,the sample shall be representative of the material i