Traditionally, different international exhibitions, conferences and seminars are held on the eve of the World Metrology Day. They are dedicated to the life and work of D.I. Mendeleev, the Great Russian scientist, one of the founders of modern metrology. On May 24, 2012, in St. Petersburg the Academy for Standardization, Metrology and Certification held a field meeting of the Academic Council. St. Petersburg was not chosen by chance: visiting places connected with the life and work of D.I. Mendeleev on the eve of Metrology day has become traditional in the Academy. D.I. Mendeleev knew the fact that science begins with metrology. Development of standardization and industrial production is impossible without modern metrology. Without metrological measurements our daily life will turn into chaos. Metrology has become an integral part of all areas of activity. It is obvious, that a huge merit of D.I. Mendeleev that Russia has a modern metric metrological measurement system. The last, most fruitful, years of his life Dmitry Ivanovich dedicated to the creation of the Chamber of Weights and Measures. Knowledge of metrology history helped him to form a modern scientific school of metrology, which became the basis of the future science. Moreover, this must not be forgotten. This must be talked and taught so that our metrology listeners do not ask: why do some metrological institutes have a monument to D.I. Mendeleev? Forgetting history, we endanger our future, scientific and technical progress.