Equipment for commercial kitchens – Mobile equipment – Part 6: Banky for cooled and frosted products
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/1997

Equipment for commercial kitchens – Mobile equipment – Part 6: Convection-cooled banquet trolley, Requirements and testing
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/2013