CFC & HCFC制冷剂无氟替换指引 R423A环保制冷剂 替换:氟利昂R12(FREON 12) 应用:用于直接替换现存的离心式冷水机组(中央空调)上使用的R12的一种新型环保制冷剂。 优点:提供简单、快速、高效的直接替换;HFC类制冷剂,ODP值为零;替换时只需将冷冻机油更换成酯类油(POE),而无需对系统进行额外冲洗;仍可继续使用现有...
在上世纪上半叶,氯氟烃 (CFC) 以及氢氯氟烃 (HCFC) 的相继引入的确解决了一些重要的安全问题,但直到 1970 年代中期,人们才开始虑及这些物质的环境风险。现在,持续使用这些物质(尤其是 CFC)造成的严重后果日益明显,这一现象导致了全球性逐步淘汰协议《蒙特利尔议定书》的出炉。
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DEVELOPMENTS IN REFRIGERATED TRANSPORT INSULATION SINCE THE PHASE OUT OF CFC AND HCFC REFRIGERANTSUnder the Montreal Protocol in January 1996 many countries ceased production of CFC gases (chlorofluorocarbons). Then in January 2003 the use of interim HCFC gases (hydro chlorofluorocarbons) were ...
作者: M Heidenreich 摘要: Presents an update on the available refrigerants in the United States as of June 1996. Ban on the production of chlorofluorocarbons (CFC); Regulation on the production of HCFC-free equipment after 2010; HCFC phaseout schedule. 年份: 1996 收藏...
Chlorofluorocarbons (CFCs) react with the ozone layer, causing a hole that exposes the surface of the earth to stronger UV radiation. Unfortunately, CFCs are also extremely useful for many purposes, and are used in refrigerants, aerosols and solvents.
Greencool refrigerants are a series ofCFC- free refrigerants that are non - flammable, non - toxic, non - corrosive and energy - efficient. 格林柯尔制冷剂是一系列不含CFC的制冷剂,其特性是不易燃 、 无毒 、 无腐蚀性而且高效节能. 互联网 ...
The use of natural refrigerants: a complete solution to the CFC/HCFC predicament Loss-of-function mutations in the EGF-CFC gene CFC1 are associated with human left-right laterality defects. Improved airway targeting with the CFC-free HFA-beclomethasone metered-dose inhaler compared with CFC-beclomet...
-It responds to ALL halogenated (containing chlorine or fluorine) refrigerants, including:CFCs e.g. R11, R12, R500, R503 etcHCFCs e.g. R22, R123, R124, R502HFCs e.g. R125, R134a, R404a-Blends including AZ-50, HP62, MP39 etc-Detect ethylene oxide gas leaks in hospital sterilizing ...
A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents a