Designation:D4596−22StandardPracticeforCollectionofChannelSamplesofCoalinaMine1ThisstandardisissuedunderthefixeddesignationD4596;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesproceduresforcollectingacoalsamplefromachannelextendingfromtoptobottominthefaceofacoalseaminamine.1.2Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionaryinformation,seeNote2.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D121TerminologyofCoalandCokeD388ClassificationofCoalsbyRankD5192PracticeforCollectionofCoalSamplesfromCoreD2234/D2234MPracticeforCollectionofaGrossSampleofCoalD2796TerminologyforMegascopicDescriptionofCoalandCoalSeamsandMicroscopicalDescriptionandAnalysisofCoal(Withdrawn1995)3D4371TestMethodforDeterminingtheWashabilityChar-acteristicsofCoal3.SummaryofPractice3.1Atselectedsitesinthemine,thefaceoftheseamiscleanedofweatheredcoalanddebrisandthefaceisevened.Achannelofuniformhorizontalcrosssectioniscutfromthecoalseamandthecoaltherefromiscollectedforanalysisandtesting.4.SignificanceandUse4.1Aproperlycollectedfacechannelsamplethatincludesthetotalcoalbedintervalprovidesasamplethatisarepre-sentativecrosssectionofthecoalbedatthepointofsampling.C...
