BS 7346-4:2003(2008) Components for smoke and heat control systems — Part 4 : Functional recommendations and calculation methods for smoke and heat exhaust ventilation systems, employing steady - state design fires — Code of practice
2003BS 7346-4:2003 Components for smoke and heat control systems - Functional recommendations and calculation methods for smoke and heat exhaust ventilation systems, employing steady-state design fires - Code of practice