Journal of Okayama Medical Association
Published by Okayama Medical Association

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Full-text articles are available 3 years after publication.

麻酔用ガス(ether及びcyclopropane)の爆発防止に関する基礎的研究 第3篇 etherガス及びcyclopropaneの起爆エネルギーと室内環境とに関する研究

坂下 昇 岡山大学医学部衛生学教室
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抄録
The influences of humidity and temperature, which were considered to be the operating room condition, upon the explosiveness of ether gas and cyclopropane were studied concerning the minimum ignition energy. The results were as follows: 1) The curve of minimum ignition energy of the mixed gases of ether or cyclopropane with the air was estimated by the intensity of primary electric current of an induction coil, which was used for spark discharge. 2) When the temperature of the mixed gases of ether or cyclopropane with the air raised, the minimum ignition energy became less, and more explosive. On this result, the most optimum temperature of the operating room, for the precaution against ignition and also for clinical necessity, was quantatively considered to be from 18°C to 24°C. 3) The minimum ignition energy was less in case of higher humidity of the mixed gases of ether or cyclopropane with the air than in case of lower humidity, namely it became more explosive. To keep the humidity for the purpose of preventing against the generation of the static electricity is more important than the problem of the minimum ignition energy, so that the relative humidity of 60% is to be the most optimum humidity of the operating room for precaution against explosion.
ISSN
0030-1558
NCID
AN00032489