Fire Resistance 11 : Disaster Management. That property of materials or their assemblies which prevents or retards the passage of excessive heat, hot gases or flames under conditions of use
William J. McHugh, Jr., Glossary of Firestop Terms (Article, Life Safety Digest magazine), Firestop Contractors International Association FCIA, Hillside, IL, USA 2010. http://www.fcia.org/articles/glossary.htm , (Firestop - Amer) {511}
