Clean agent fire extinguishing Classification

Characteristics and Main Classification of Clean Agent Fire Extinguishing Agents

(1) Clean agent fire extinguishing agents refer to non-conductive gaseous or vaporizing liquid extinguishing agents. Their basic characteristics are:
① Released in the form of gas or easily volatilized liquid;
② No residue left after use;
③ Non-conductive with excellent insulation properties;
④ Does not cause pollution or damage to the protected objects.
(2) At present, clean agent fire extinguishing agents can be divided into five main categories:
Common Clean Agent Fire Extinguishing Agents
Halon Fire Extinguishing Agent Halogenated hydrocarbon fire extinguishing agents containing bromine, mainly including Halon 1211, Halon 1301, and Halon 2402 Phased out
Hydrofluorocarbon (HFCs) Fire Extinguishing Agents Halogenated hydrocarbons composed of carbon, hydrogen, and fluorine, mainly including HFC-227ea (Heptafluoropropane), HFC-236fa (Hexafluoropropane), and HFC-143a (Trifluoromethane) Production under quota, gradually being phased out
Novec 1230 Fire Protection Fluid (FK-5-1-12) Environmentally friendly liquid extinguishing agent Strong potential for substitution
Inert Gas Fire Extinguishing Agents Mixed gases composed of nitrogen, argon, or a combination of several gases in specified proportions (excluding carbon dioxide), mainly including IG541, IG100, IG01, IG55 Broad development prospects
Carbon Dioxide Fire Extinguishing Agent Composed solely of carbon dioxide (CO₂) Not suitable for occupied spaces

Note 1: Halon agents, hydrofluorocarbons (HFCs), and Novec 1230 are all synthetic gaseous extinguishing agents, commonly referred to as chemical clean agents.

Note 2: According to relevant standards, carbon dioxide extinguishing agents are not classified as clean agents; however, they possess the characteristics of clean agents and are therefore included in this table for reference.