The Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT, Spain) has submitted a sample of known activity of Ga-67 to the International Reference System (SIR) recently for activity comparison at the Bureau International des Poids et Mesures. The value of the activity submitted was about 8 MBq. The degrees of equivalence between each equivalent activity measured to date in the SIR and the key comparison reference value (KCRV) have been calculated and the results are given in the form of a matrix for eight NMIs including the CIEMAT. A graphical presentation is also given.