If two people want to communicate with each other, they ought to speak the same language. In the scientific-technical world, measurement results represent such a language. Thus, a measuring system which is uniform throughout the world is indispensable, especially in these times of globalization. Worldwide uniformity is however achieved only through practical cooperation and a great number of confidence-building measures. PTB's international tasks thus include participating in various metrological organizations as well as cooperating with National Metrology Institutes all over the world, and giving practical aid in setting up the metrological infrastructure of developing countries and countries in transition. Various international agreements are milestones on the way towards international uniformity.
