2017DIN EN 16282-5:2017 Equipment for commercial kitchens - Components for ventilation in commercial kitchens - Part 5: Air duct; Design and dimensioning
2005DIN 18869-4:2005 Equipment for commercial kitchens - Components for ventilation - Part 4: Air duct, construction and dimensioning
1970DIN 18869-4 E:2003-10 Equipment for commercial kitchens - Components for ventilation - Part 4: Air duct, construction and dimensioning