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From page 27... ... ABSTRACTS AND B E V I E W S 255 K Physiological and Psychological Problems from Fires Kishitani, K . Read the entire page →
From page 28... ... 256 F I R E R E S E A R C H Fmally, building materials were actually burned in a furnace to observe their harmful natures With lumber, plywood and woodwool-cement boards, carbon monoxide was clearly lethal, while with polyvinyl chloride, polyurethanes, etc , i t was seen that harmful gases other than carbon monoxide had a considerable complimentary effect with carbon monoxide Also, from analyses of electrocardiograms, i t was found there was considerable effect before concentration of smoke was increased, and it was learned that harmful gases produced at time of combustion caused fairly great damage to human bodies at the early stages of fire Consideraiiom (a) Wood (cedar) Read the entire page →
From page 29... ... ABSTRACTS AND R E V I E W S 257 fore, the mice all died at a fairly early time The CO-Hb concentrations at time of death were extremely high, averaging 48%, and since there were no other symptoms, the deaths were perfect cases of carbon monoxide poisoning I t may be said that treatment for fire retardation rather increased the danger of carbon monoxide poisoning The concentration of smoke was also high, and after 7 mm the interior of the chamber was hardly visible Abnormahties in cardiac waveforms appeared shghtly at 5 min and prominently after 7 mm had elapsed These were thought to be due to both smoke and gas However, i t may be said the lethal factor was still carbon monoxide (d) Melamine Fimshing Board The time of smoke emission was about 1 min 30 sec later than in the case of cedar. Read the entire page →
From page 30... ... 258 F I R E R E S E A R C H mucous membranes I t is evident there was some variety of irritative gas other than carbon monoxide generated According to electrocardiograms, irregular pulses appeared at 5 mm, and since smoke was thin at this time it was thought this phenomenon was due to this irritative gas Parenthetically, there was effect of a poisonous gas generated rather than of smoke (h) Acrylic Resm Almost all of the mice died The CO-Hb concentrations at the times of death averaged 43%, and the cause of death was carbon monoxide poisomng Irregular pidses appeared in electrocardiograms from 5 to 7 mm, which was sooner than the effects from smoke (i) Read the entire page →

From page 27...

... ABSTRACTS AND B E V I E W S 255 K Physiological and Psychological Problems from Fires Kishitani, K .

Read the entire page →

From page 28...

... 256 F I R E R E S E A R C H Fmally, building materials were actually burned in a furnace to observe their harmful natures With lumber, plywood and woodwool-cement boards, carbon monoxide was clearly lethal, while with polyvinyl chloride, polyurethanes, etc , i t was seen that harmful gases other than carbon monoxide had a considerable complimentary effect with carbon monoxide Also, from analyses of electrocardiograms, i t was found there was considerable effect before concentration of smoke was increased, and it was learned that harmful gases produced at time of combustion caused fairly great damage to human bodies at the early stages of fire Consideraiiom (a) Wood (cedar)

Read the entire page →

From page 29...

... ABSTRACTS AND R E V I E W S 257 fore, the mice all died at a fairly early time The CO-Hb concentrations at time of death were extremely high, averaging 48%, and since there were no other symptoms, the deaths were perfect cases of carbon monoxide poisoning I t may be said that treatment for fire retardation rather increased the danger of carbon monoxide poisoning The concentration of smoke was also high, and after 7 mm the interior of the chamber was hardly visible Abnormahties in cardiac waveforms appeared shghtly at 5 min and prominently after 7 mm had elapsed These were thought to be due to both smoke and gas However, i t may be said the lethal factor was still carbon monoxide (d) Melamine Fimshing Board The time of smoke emission was about 1 min 30 sec later than in the case of cedar.

Read the entire page →

From page 30...

... 258 F I R E R E S E A R C H mucous membranes I t is evident there was some variety of irritative gas other than carbon monoxide generated According to electrocardiograms, irregular pulses appeared at 5 mm, and since smoke was thin at this time it was thought this phenomenon was due to this irritative gas Parenthetically, there was effect of a poisonous gas generated rather than of smoke (h) Acrylic Resm Almost all of the mice died The CO-Hb concentrations at the times of death averaged 43%, and the cause of death was carbon monoxide poisomng Irregular pidses appeared in electrocardiograms from 5 to 7 mm, which was sooner than the effects from smoke (i)

Read the entire page →

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