Designation:C802−14StandardPracticeforConductinganInterlaboratoryTestProgramtoDeterminethePrecisionofTestMethodsforConstructionMaterials1ThisstandardisissuedunderthefixeddesignationC802;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticedescribestechniquesforplanning,conducting,andanalyzingtheresultsofaninterlaboratorystudy(ILS)withtheobjectiveofdevelopingtheprecisionstatementofatestmethod.ItisdesignedtobeusedinconjunctionwithPracticeC670.ThemethodsusedinthisstandardareconsistentwiththoseinPracticeE691.1.2Thispracticeisnotintendedforuseinprogramswhosepurposeistodevelopatestmethodortoassesstherelativevariabilityoftwoormoretestmethods.RefertoPracticeC1067forprocedurestoevaluatetheruggednessofatestmethod.1.3Thesystemofunitsforthispracticehasnotbeenspecified.Dimensionalquantitiesinthepracticearepresentedonlyinexamplesofcalculations.1.4Thisstandarddoesnotpurporttoaddressallsafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C136TestMethodforSieveAnalysisofFineandCoarseAggregatesC311/C311MTestMethodsforSamplingandTestingFlyAshorNaturalPozzolansforUseinPortland-CementConcreteC670PracticeforPreparingPrecisionandBiasStatementsforTestMethodsforConstructionMaterialsC1067PracticeforConductingaRuggednessEvaluationorScreeningProgramforTestMethodsforConstructionMaterialsE105PracticeforProbabilitySamplingofMaterialsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE178PracticeforDealingWithOutlyingObservationsE456TerminologyRelatingtoQualityandStatisticsE691Practicef...
