Designation:C917/C917M−18StandardTestMethodforEvaluationofVariabilityofCementfromaSingleSourceBasedonStrength1ThisstandardisissuedunderthefixeddesignationC917/C917M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedurefordeterminingthevariabilityofahydrauliccementproducedatasinglesourceusingstrengthtestsasthecharacteristicproperty.Itisintendedthatthistestmethodnormallybeusedforthepredominantcementmanufacturedatacementplant.Guidelinesforsampling,testing,presentationofresults,andevaluationaregiven.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasthestandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;thereforeeachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.OnesystemofunitsisusedintheFigureandTablesinthisstandardtoillustratethecalculationmethodsthatareapplicableindependentofthesystemofunits.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C150SpecificationforPortlandCementC219TerminologyRelatingtoHydraulicCementC595SpecificationforBlendedHydraulicCementsC1157PerformanceSpecificationforHydraulicCementC...
