American Ansell is the first research and development of mixed-gas fire extinguishing equipment, they call themselves: Inergen smoke branded
In this company developed this product was quickly recognized by the U.S. NFPA, and access to the U.S. UL, FM certification, and later the international standard will Inergen name. Later, the international standard will be Inergen name with the abbreviation IG, the domestic also for the unification of the name, so follow the name
IG541 is the earliest foreign products, the name is: Inergen smoke branding
At the same time the component is a mixture of gases: Gas mixture
541 represents the approximate proportion of its main components: nitrogen accounts for about 50%, argon accounts for about 40%, carbon dioxide accounts for about 10%. carbon dioxide about 10%.