Jesli nie wyswietlil sie PDF w Panstwa przegladarce moze to oznaczac ze nie ma spelnionych warunkow konfiguracji/oprogramowania. Mozecie Panstwo sprawdzic jakie sa zalecane konfiguracje: TUTAJ
Date: 2012
Author:
dr inż. Renata Dobrzyńska

Recenzenci:

Tags: , fire safety, toxicity of fire products, fire toxic hazard,

During the fire the man is exposed to a mixture of toxic gases such as: carbon monoxide, carbon dioxide, hydrogen cyanide, nitrogen dioxide, sulphur dioxide, hydrogen chloride, etc. They are emitted during thermal decomposition and combustion of materials which they are in the room of the fire. The highest fire toxic hazard is caused by upholstered furniture. The cause of the toxic fire hazard may be the products of thermal decomposition and combustion of polyurethane foams used in manufacturing of upholstered furniture. Results of the research indicate that already in the initial phase of fire progress of polyurethane foams the concentration of carbon monoxide and hydrogen cyanide are often lethal for humans. Valid in building at present recipes do not require the evaluation of toxicity of products thermal decomposition and combustion materials used in habitable buildings. Meanwhile, statistic data concerning victims of fires indicate a significant percentage of mortality caused by smoke and fire products toxicity. In this connection, is a need to develop a method of quantitative evaluation. Parameter of quantitative evaluation of materials in view of toxic fire hazards may be exceed multiplication factor of critical concentration of products of thermal decomposition and combustion materials in room of specific volume after burning under specific thermal conditions material mass unit. Practical application of the exceed multiplication factor of critical concentration of products of thermal decomposition and combustion materials of quantitative evaluation of materials, would decrease fire toxic hazard level in rooms and it permits on selection of suitable materials of equipment interiors, to in initial phase of fire to assure people safe evacuation from fire rooms.

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