Purpose
Large outdoor fires present a risk to the built environment. Wildfires that spread into communities, referred to as Wildland-Urban Interface (WUI) fires, have destroyed communities throughout the world and are a growing problem in fire safety science. Other examples are large urban fires, including those that have occurred after earthquakes. Over the past several decades, fire safety science research has spent a great deal of effort to understand fire dynamics within buildings. Research into large outdoor fires, and how to potentially mitigate the loss of structures in such fires, lags behind other areas of fire safety science research. Once a wildland fire reaches a community and ignites structures, structurestructure fire spread can occur under similar mechanisms as in urban fire spread. Firebrand showers are main driver of fire spread in large outdoor fires but there is no accepted internationally harmonized test method to generate firebrand showers. ISO TC92 WG14 has agreed to develop this ISO standard test method. As part of this proposal, a standard firebrand generator will be developed that will be stand-alone device
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