When the viscosity indexes of both components are less than one, the viscosity of mixture calculated from viscosity additivity is greater than that calculated from concentration additivity.
When the viscosity indexes of both components are less than one, the viscosity of mixture calculated from viscosity additivity is greater than that calculated from concentration additivity.
当二元体系的浓度指数都小于1时，粘度加和法得到的结果大于浓度加和法。