perfluorohexanone fire extinguishing agent — Wanlin, 12-year Chinese perfluorohexanone (FK-5-1-12) fire extinguishing manufacturer, WL-PF700 (Battery Energy Storage System Perfluorohexanone Fire Extinguishing System) NFPA 2001/ISO 14520/EN 15004 certified. BESS-Specific Design + FK-5-1-12 Agent + Battery Module/Battery Pack Level Protection + Thermal Runa. ···