 Instead, the fire is confined to a narrow tube, where pressure and heat build up and spread rapidly, with little room for escape and little chance of compartmentalization.This scenario was tested and quantified, particularly during the "Eureka Project", run by Technische Universität Braunschweig's iBMB, Ekkehard Richter.The Netherlands, through Rijkswaterstaat in particular, mandated an extremely tough standard, the curve of which is shown in the gallery above.