Requirements for and physical properties of halon 1211 [bromochlorodifluoromethane (CF$d2ClBr)] and halon 1301 [bromotrifluoromethane (CF$d2Br)]. Requirements include minimum purity and maximum water content.
BS EN 27201-1:1990 history
1990BS EN 27201-1:1994 Fire protection. Fire extinguishing media. Halogenated hydrocarbons. Specifications for halon 1211 and halon 1301
1990BS EN 27201-1:1990 Fire protection - Fire extinguishing media - Halogenated hydrocarbons - Specifications for halon 1211 and halon 1301