THE DISSEMINATION OF THE FORCE UNIT IN ITALY

摘要

The establishment of national calibration services (NCS) and mutual agreements between the NCS of the different countries (UKAS, DKD, SIT, etc.) have increased the necessity of the dissemination of the unit of force inside the individual countries and of standards harmonisation through continuous international comparison. In the paper the new primary standards of 30 kN and 1 MN of the CNR-IMGC are described. Results are given concerning: the evaluation of the internal coherence of the machine; the internal comparison in the laboratory; the dissemination of the force unit in Italy.