Designation:D346/D346M−11StandardPracticeforCollectionandPreparationofCokeSamplesforLaboratoryAnalysis1ThisstandardisissuedunderthefixeddesignationD346/D346M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONCoke,especiallyrunofovencokeorfoundrycoke,orboth,isadifficultmaterialtosample.Itisimperativethateverysamplebecollectedandhandledcarefullyandconscientiouslyandinstrictaccordancewiththestandardproceduredescribedherein.Grosssamplesofnotlessthanthequantitiesdesignatedinthispracticemustbetaken,whetherthecoketobesampledconsistsofafewtonsorseveralhundredtons.1.Scope1.1Thispracticecoversproceduresforthecollectionandreductionofsamplesofcoketobeusedforphysicaltests,chemicalanalyses,andthedeterminationoftotalmoisture.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.2.1ValuesinSIunits[orinch-poundunits]shallbeobtainedmymeasurementinSIunits[orinch-poundunits]orbyappropriateconversion,usingtheRulesforConversionandRoundinggiveninIEEE/ASTMSI10,ofmeasurementsmadeinotherunits[orSIunits].ValuesarestatedinSIunitswheninch-poundunitsarenotusedinpractice.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D167TestMethodforApparentandTrueSpecificGravityandPorosityofLumpCokeD293TestMethodfortheSieveAnalysisofCokeD2013PracticeforPreparingCoalSamplesforAnalysisD2234/D2234MPracticeforCollectionofaGrossSampleofCoalD3038TestMethodforDropShatterT...
