DIN 28021
DIN 28021 Vertical pressure vessels - Vessels for storage, 6.3 m<(hoch)3> up to 100 m<(hoch)3> - Dimensions
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2006
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2006