DIN 24339
DIN 24339 Hydraulic fluid power - Reservoirs made of steel, nominal sizes 63 to 2 000 - Dimensions, requirements, testing
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/2016
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/2016