WhatDoesTheTestingTellUs?Therearefourdifferentpartstothisstandardwhichareusedtomeasureheatrelease,***okeproductionandmasslossrate.Part1:Thispartofthestandarddetailedthetestmethodusedtodeterminetheheatreleasefromamaterial.Heatreleaseisameasureofthecontributionthataburningmaterialmakestoafireinprogress.Ahighrateofheatreleasemayproduceahighrateoftemperatureincreaseinsurroundingunburntmaterialandacceleratefirespread.Part2:Thispartofthestandardprovidesinformationrelatingtohowthe***okeproductionratecanbecalculatedduringthetestdescribedinpart1.The***okedensitymeasurementtakenfromamaterialunderfireconditi***givesanindicationofthevisibilitythroughthe***oke,thisisimportantasreducedvisibilitymakesitmoredifficulttoescapefromafirehenceincreasingthethreattohumanlifefromthetoxicgases,flamesandheat.Part3:Thispartofthestandardprovidesguidanceontakingmeasurementswhilstconductingthetestsdetailedinpart1andpart2.Itexaminesthelimitati***oftheconecalorimeterascurrentlyusedforbuildingproductsandrecommendswaysinwhichsomeofthesemaybeovercomeforothertypesofproductsforotherapplicationareas.Part4:Thispartofthestandardspecifiesamethodforevaluatingmaterialsandproductsthatproducelowlevelsofheatreleasewhenexposedtohighheatflux(i.e.irradiancelevels)typicaloffullydevelopedfires.WhenIsThisTestConducted?Thistestiscalleduponinanumberofdifferentspecificati***andspecificcontracts.AnexampleofwhenthistestiscalleduponisinGM/RT2130forseatproductsforUKrollingstockandprCEN45545-2forEuropeanrollingstockinthefuture.Thetestmayalsobeconductedinordertoobtaininformationwhichmaybeusedinordertorankproductsandformodellingwork.)