Designation:D7247−17StandardTestMethodforEvaluatingtheShearStrengthofAdhesiveBondsinLaminatedWoodProductsatElevatedTemperatures1ThisstandardisissuedunderthefixeddesignationD7247;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisstandarddescribesatestmethodforevaluatingthecomparativeshearstrengthofaplanaradhesivebondatbothambientandelevatedtemperaturesrelativetotheperformanceofsolidwoodunderthesameconditions.Thetestmethodisbasedonthebreakingloadafterthespecimenisexposedtoeitherambientoraconstantelevatedtemperatureforaspeci-fieddurationasdescribedinSection7.Thisstandarddoesnotprecludethedevelopmentandimplementationofothermeth-odsthatprovideequivalentperformancemeetingtheintentofthismethod.1.2ThistestmethodisintendedfortheevaluationofadhesivesthatcanbeusedtoassembletestspecimensinaccordancewithTestMethodD905.Theevaluationofothertypesofadhesives,suchasthebindersystemsusedforstrand-basedproducts,isbeyondthescopeofthistestmethod,exceptasnotedin1.4.1.3Thistestmethodisintendedfortheevaluationofadhesivesasacomponentoflaminatedwoodproductsatelevatedtemperatures.Theevaluationoffireperformanceonfire-ratedlaminatedwoodproductsorassembliesisbeyondthescopeofthistestmethod.1.4Thistestmethodmaybeusedfortheevaluationofheatdurabilityforbinderadhesivesusedinstrand-basedstructuralwoodcomposites,suchasorientedstrandlumber(OSL)andlaminatedstrandlumber(LSL),bysubstitutingstrand-basedcompositespecimensforthebondedspecimens.1.5Theformulationofadhesivesuppliedtothemanufac-tureroflaminatedwoodproductsshallbeevaluated.Modifi-cationstotheadhesiveformulationrequireaseparateevalua-tionunlessapprovedbythemanufacturerofthelaminatedwoodproduct,qualifiedagency,andcodeevaluationagency.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformati...
