Designation:D6570−04(Reapproved2010)StandardPracticeforAssigningAllowablePropertiesforMechanicallyGradedLumber1ThisstandardisissuedunderthefixeddesignationD6570;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthemethodologyofgradequalifi-cation,assignmentofdesignproperties,andrequirementsforthequalitycontrolofmechanicallygradedsolidsawnlumber.1.2Thispracticeacknowledgesalternativemethodsfortheassignmentofspecificproperties.Thesemethodsareassign-mentbytest,relationshiptootherproperties,andbyproce-duresinotherappropriatestandards.2.ReferencedDocuments2.1ASTMStandards:2D9TerminologyRelatingtoWoodandWood-BasedProd-uctsD143TestMethodsforSmallClearSpecimensofTimberD198TestMethodsofStaticTestsofLumberinStructuralSizesD245PracticeforEstablishingStructuralGradesandRe-latedAllowablePropertiesforVisuallyGradedLumberD1165NomenclatureofCommercialHardwoodsandSoft-woodsD1990PracticeforEstablishingAllowablePropertiesforVisually-GradedDimensionLumberfromIn-GradeTestsofFull-SizeSpecimensD2395TestMethodsforSpecificGravityofWoodandWood-BasedMaterialsD2555PracticeforEstablishingClearWoodStrengthValuesD2915PracticeforSamplingandData-AnalysisforStruc-turalWoodandWood-BasedProductsD3737PracticeforEstablishingAllowablePropertiesforStructuralGluedLaminatedTimber(Glulam)D4442TestMethodsforDirectMoistureContentMeasure-mentofWoodandWood-BaseMaterialsD4444TestMethodforLaboratoryStandardizationandCalibrationofHand-HeldMoistureMetersD4761TestMethodsforMechanicalPropertiesofLumberandWood-BaseStructuralMaterial2.2ANSIStandards:3ANSI/AITCA190.1AmericanNationalStandardforWoodProducts—StructuralGluedLaminatedTimberANSI/AF&PANDSNationalDesignSpecificationforWoodConstruction2.3CanadianStandardsAssociationStandard:4CSAO141SoftwoodLumber2.4NationalInstituteofStandardsa...
