The mass of Ti-40 has been determined by using the isobaric multiplet mass
equation method. The experimental data of the Ti-40 beta -decay were used t
o determine the level of the isospin analogue state of Sc-40. The ground-st
ate mass excess and the Q(EC) value for Ti-40 were determined to be -9060 /- 12 keV and 11466 +/- 13 keV, respectively.