Designation:E1529−14aAnAmericanNationalStandardStandardTestMethodsforDeterminingEffectsofLargeHydrocarbonPoolFiresonStructuralMembersandAssemblies1ThisstandardisissuedunderthefixeddesignationE1529;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONTheperformanceofstructuralmembersandassembliesexposedtofireconditionsresultingfromlarge,free-burning(thatis,outdoors),fluid-hydrocarbon-fueledpoolfiresisofconcerninthedesignofhydrocarbonprocessingindustry(HPI)facilitiesandotherfacilitiessubjecttothesetypesoffires.Inrecognitionofthisuniquefireprotectionproblem,itisgenerallyrequiredthatcriticalstructuralmembersandassembliesbeoffire-resistantconstruction.Historically,suchrequirementshavebeenbasedupontestsconductedinaccordancewithTestMethodsE119,theonlyavailablestandardizedtestforfireresistantconstruction.However,theexposurespecifiedinTestMethodsE119doesnotadequatelycharacterizelargehydrocarbonpoolfires.TestMethodsE119isusedforrepresentationofbuildingfireswheretheprimaryfuelissolidinnature,andinwhichtherearesignificantconstraintsonthemovementofairtothefire,andthecombustionproductsawayfromthefire(thatis,throughdoors,windows).Incontrast,neitherconditionistypicaloflargehydrocarbonpoolfires(seeAppendixX1onCommentary).OneofthemostdistinguishingfeaturesofthepoolfireistherapiddevelopmentofhightemperaturesandheatfluxesthatcansubjectexposedstructuralmembersandassembliestoathermalshockmuchgreaterthanthatassociatedwithTestMethodsE119.Asaresult,itisimportantthatfireresistancerequirementsforHPIassembliesofalltypesofmaterialsbeevaluatedandspecifiedinaccordancewithastandardizedtestthatismorerepresentativeoftheanticipatedfireconditions.Suchastandardisfoundinthetestmethodsherein.1.Scope*1.1Thetestmethodsdescribedinthisfire-test-responsestandardareusedfordeterminingthefire-tes...
