## relative viscosity increment

https://doi.org/10.1351/goldbook.R05283
The ratio of the difference between the viscosities of solution and solvent to the @V06627@ of the solvent, i.e. $$\eta _{i} = \frac{\eta - \eta _{\text{s}}}{\eta _{\text{s}}}$$, where $$\eta$$ is the @V06627@ of the solution and $$\eta _{\text{s}}$$ is the @V06627@ of the solvent. The use of the term 'specific @V06627@' for this quantity is discouraged, since the @R05282@ increment does not have the attributes of a specific quantity.
Source:
Purple Book, 1st ed., p. 63 [Terms] [Book]