【摘要】 本文简要论述了卤代烷1211和1301灭火剂的灭火机理及对臭氧层的破坏机制，介绍了几种欧美广泛采用的卤代烷1211和1301替代物的性能，并提出了评价卤代烷1211和1301灭火剂替代物的指标体系。更多还原

【Abstract】 This paper describes briefly the fire-extinguishing mechanism of halon extin-guishant and intreduces a few halon substituents widely used in Europe and America. In theend the index system evaluating halon extinguishant substituents are put forward.更多还原