Designation:C568/C568M−15StandardSpecificationforLimestoneDimensionStone1ThisstandardisissuedunderthefixeddesignationC568/C568M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversthematerialcharacteristics,physicalrequirements,andsamplingappropriatetotheselec-tionoflimestoneforgeneralbuildingandstructuralpurposes.RefertoGuidesC1242andC1528fortheappropriateselectionanduseoflimestonedimensionstone.1.2Dimensionlimestoneshallincludestonethatissawed,cut,split,orotherwisefinishedorshapedandshallspecificallyexcludemolded,cast,orotherwiseartificiallyaggregatedunitsofcomposedfragments,andalsocrushedandbrokenstone.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.2.ReferencedDocuments2.1ASTMStandards:2C97/C97MTestMethodsforAbsorptionandBulkSpecificGravityofDimensionStoneC99/C99MTestMethodforModulusofRuptureofDimen-sionStoneC119TerminologyRelatingtoDimensionStoneC170/C170MTestMethodforCompressiveStrengthofDimensionStoneC241/C241MTestMethodforAbrasionResistanceofStoneSubjectedtoFootTrafficC1242GuideforSelection,Design,andInstallationofDimensionStoneAttachmentSystemsC1353TestMethodforAbrasionResistanceofDimensionStoneSubjectedtoFootTrafficUsingaRotaryPlatformAbraserC1528GuideforSelectionofDimensionStone3.Terminology3.1Definitions—AlldefinitionsareinaccordancewithTer-minologyC119.4.Classification4.1Dimensionlimestoneshallbeclassifiedintothreecategories,generallydescriptiveofthoselimestoneshavingdensitiesinapproximateranges,asfollows:4.1.1I(Low-Density)—Lim...
