制冷剂国际安全标准

随着环保意识的提高和科学技术的进步,研究人员对使用微燃甚至强燃制冷剂的兴趣日益增加,但是与制冷空调有关的大多数安全标准都禁止使用任何有燃烧性的制冷剂。为了解决这个问题,使具有可燃性的制冷剂,特别是安全问题已经基本得到解决且产品开发已经有了很大进展的微燃制冷剂能够得到安全的应用和普及,修订与制冷空调相关的安全标准和法规迫在眉睫。本文将简单介绍微燃制冷剂的诞生过程,以及相应安全标准ISO 5419的修订内容和现状。

International safety standards for refrigerant

The interest of using mildly flammable and even strongly flammable refrigerants in refrigeration and air-conditioning applications is increasing with enhancing aware- ness of enviromental protection and the progress of science and technology. But the most safety related standards are still preventing using any flammable refrigerants, due to the risk of fire hazard. To update safety related standards become an urgent issue to allow the safe use of flammable refrigerants, especially the 2L class mildly flammable refrigerants, which are considered practically safe in the refrigeration and air-conditioning applications, under certain conditions. The 2L update process is briefly summarized, and the update of the present status of 2L related ISO standard is given.