Combustible (Material) : A material that, in the form in which it is used and under the conditions anticipated, will ignite and burn; a material that does not meet the definition of noncombustible or limited-combustible
NFPA 285 Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components, 2006 ed. http://www.rci-online.org/interface/2010-01-hansbr o.pdf, (Std: Fr Tst Meth for Evaluation of Fr Propagation Characteristics of Extr Non-Load-Bearing Wall Assly Cont Comb Components - Amer) {286 NFC}