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Toxic Gases Evolution from Commercial Building Materials under Fire Atmosphere in a Semi-Full-Scale Room

Fire Research Institute Fire Defence Agency Home Affairs Ministry of Japanese Government 14-1, Nakahara 3 Chome Mitaka, Tokyo 181, Japan

Commercial building materials of board type assembled into a box shape, were each independently combusted in a semi-full-scale room along with methanol, which was supplied at a constant rate, under the conditions of forced air supply by blower.

Primary toxic gases were CO and acrolein from wood-based materials, and CO and HCN from urethanes. From phenol foams, evolution of CO and other toxic gases was very small.

A comparison was made between the evolution of toxic gases from materials assembled in a box shape and also in a crib shape. It was found that the total toxicity, E(C₁/C _fi), and concentrations of the above toxic gases were much higher for the box shape than for the crib shape.

Journal of Fire Sciences, Vol. 6, No. 2, 86-99 (1988)
DOI: 10.1177/073490418800600202


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