Download or read book Nist-GCR-94-646 Backdraft Phenomena written by U.s. Department of Commerce and published by CreateSpace. This book was released on 2014-03-30 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: A backdraft is defined as a rapid deflagration following the introduction of oxygen into a compartment filled with accumulated unburned fuel. Prior to 1991, the word backdraft was known only to firefighters and a few researchers.