Aerosolen sprejas mot en antändningskälla i intervaller om 15 cm i syfte att observera om sprejen antänds och fortsätter brinna. ###>The aerosol is sprayed in the direction of an ignition source at intervals of 15 cm to observe if ignition and sustained combustion of the spray takes place. Ignition and sustained combustion is defined as when a stable flame is maintained for at least five seconds.