Reference Value Decision based on Monte Carlo Method in an International Key Comparison

This paper describes a decision method based on Monte Carlo simulation. This method is applied in the CCM.M-K2 comparison, which is an international key comparison for mass standards. Monte Carlo method can deal with the limitations that apply in certain cases to the processing method based on GUM. The commercial software was used to purse numerical simulation and the result was compared with the final report of CCM.M-K2. Soft simulation showed this decision method have good performance in dealing with comparison big data.