DIN EN 12238:2001-12 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application; German version EN 12238:2001
2001DIN EN 12238:2001-12 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application; German version EN 12238:2001
2001DIN EN 12238:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application; German version EN 12238:2001
1970DIN EN 12238 E:1996-02 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application