DS EN 12952-14:2004 Water-Tube Boilers And Auxiliary Installations - Part 14: Requirements For Flue Gas Denox-Systems Using Liquefied Pressurized Ammonia And Ammonia Water Solution Defines the safety requirements regarding the storage and use of: - liquefied pressurized ammonia for steam boiler plants; - liquid ammonia water solution for the reduction of NO[x] in the flue gas fr