通过激光点火测定气管导管的氧气和一氧化二氮可燃性指数。
The oxygen and nitrous oxide indices of flammability of endotracheal tubes determined by laser ignition.
作者信息
Simpson J I, Wolf G L, Rosen A, Krespi Y, Schiff G A
机构信息
Department of Anesthesiology, University of New York Health Science Center, Brooklyn, NY 11203.
出版信息
Laryngoscope. 1991 Sep;101(9):981-4. doi: 10.1288/00005537-199109000-00009.
This study determines the flammability of polyvinylchloride (PVC), red rubber (RR), and silicone (Si) endotracheal tubes in oxygen- and nitrous-oxide-enriched atmospheres. Flammability is measured by using the oxygen and nitrous oxide indices of flammability with laser ignition. The laser-ignited oxygen (O2) index of flammability of the endotracheal tubes is: PVC, 0.25; RR, 0.19; Si, 0.20. The laser-ignited nitrous oxide (N2O) index of flammability of the endotracheal tubes is: PVC, 0.45; RR, 0.37; and Si, 0.41. These results are similar to the previously reported O2 and N2O indices of flammability with propane-torch ignition. This study validates the concept that the indices of flammability are useful measures of endotracheal tube flammability and are independent of the ignition source.
本研究测定了聚氯乙烯（PVC）、红色橡胶（RR）和硅胶（Si）气管内导管在富氧和富一氧化二氮环境中的可燃性。通过使用激光点火的氧气和一氧化二氮可燃性指数来测量可燃性。气管内导管的激光点燃氧气（O₂）可燃性指数为：PVC，0.25；RR，0.19；Si，0.20。气管内导管的激光点燃一氧化二氮（N₂O）可燃性指数为：PVC，0.45；RR，0.37；Si，0.41。这些结果与先前报道的丙烷火炬点火的O₂和N₂O可燃性指数相似。本研究验证了可燃性指数是气管内导管可燃性的有用度量且与点火源无关这一概念。
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