Designation:D3501−05a(Reapproved2018)StandardTestMethodsforWood-BasedStructuralPanelsinCompression1ThisstandardisissuedunderthefixeddesignationD3501;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthedeterminationofthecompressionpropertiesofwood-basedstructuralpanels.Wood-basedstructuralpanelsinuseincludeplywood,waferboard,orientedstrandboard,andcompositesofveneerandofwood-basedlayers.1.2MethodA,CompressionTestforSmallSpecimens—Thismethodisapplicabletosmallspecimensthatareuniformwithrespecttoelasticandstrengthproperties.Twotypesofcom-pressiontestsareemployed:onetoevaluatebothelasticandcompressivestrengthproperties,andthesecondtoevaluatemaximumcompressivestrengthonly.1.3MethodB,CompressionTestforLargeSpecimens—Thismethodemployslargespecimensandrespondswelltomanu-facturingvariablesandgrowthcharacteristicsthatinfluencecompressionpropertiesofstructuralpanels.1.3.1Thismethodisintendedforthefollowing:1.3.1.1Comparativetestsofstructuralpanels,1.3.1.2Evaluatingtheeffectsofmoisturecontentonstrengthpropertiesofstructuralpanels,1.3.1.3Determiningthestrengthpropertiesofstructuralpanels,and1.3.1.4Evaluatingtheeffectsofrawmaterialandmanufac-turingvariablesoncompressionpropertiesofstructuralpanels.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelope...
