A.E. Isaev, A.M. Polikarpov FSUE “VNIIFTRI”, Mendeleevo, Moscow regionisaev@vniiftri.rua_polikarpov@vniiftri.ru Al’manac of Modern Metrology № 3 (19) 2019, pages 91–111 The goals, tasks and features of the international and key comparisons of the SPS GET 55, made since putting the standard into operation, are discussed. Using the example of the GET 55, problem situations that may arise … Continue reading About the role of comparisons in GET 55 improvement