TÜBİTAK UME participates in international measurement comparisons that are organized by international metrology organizations, such as the CIPM and EURAMET, in order to establish the degrees of equivalence between the standards that it maintains and those of other countries and ensure the international recognition of the measurements and calibrations it performs. Information on the comparisons registered by the BIPM and their results are published in the Key Comparison Database (KCDB) that is accessible through the BIPM website.