Intercomparison between deadweight machines in China and UK up to 1 MN

Abstract

This paper describes a tripartite comparison at forces of 250 kN, 500 kN, and 1 MN between deadweight force standard machines located at FJIM (China), NIMTT (China), and NPL (UK). Two different transfer standards were used, and the results demonstrated good agreement between the three machines, with <em>E</em><sub>n</sub> values of significantly lower magnitude than one.