[en] A plutonium oxide storage unit alongside the reference plant for the fabrication of fuels based on mixed uranium and plutonium oxides which has been projected for 1990 is described. The main characteristics sought in such a storage unit is mechanization and, whenever possible, automation of the plutonium handling operations in order to reduce workers' exposure as much as possible. The study determines the standard storage containers' design, the storage facility and also the specifications for mechanized handling of the containers. The study demonstrates the need of improvements for powder transfer technology and counting instruments for correct evaluation of plutonium quantities