Designation:C702/C702M−18AmericanAssociationStateHighwayandTransportationOfficialsStandard:T248StandardPracticeforReducingSamplesofAggregatetoTestingSize1ThisstandardisissuedunderthefixeddesignationC702/C702M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticecoversthreemethodsforthereductionoflargesamplesofaggregatetotheappropriatesizefortesting.Thesetechniquesareintendedtominimizevariationsinmeasuredcharacteristicsbetweenthetestsamplesselectedandthelargesample.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.NOTE1—SievesizeisidentifiedbyitsstandarddesignationinSpeci-ficationE11.Thealternativedesignationgiveninparenthesesisforinformationonlyanddoesnotrepresentadifferentstandardsievesize.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C125TerminologyRelatingtoConcreteandConcreteAg-gregatesC128TestMethodforRelativeDensity(SpecificGravity)andAbsorptionofFineAggregateD75PracticeforSamplingAggregatesE11SpecificationforWovenWireTestSie...
