relative viscosity 

Synonym: viscosity ratio
https://doi.org/10.1351/goldbook.R05282
The ratio of the viscosity of the solution, η, to the viscosity of the solvent, ηs, i.e. ηr=ηηs. Synonymous with viscosity ratio.
Source:
Purple Book, 1st ed., p. 62 [Terms] [Book]
Citation: 'relative viscosity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.R05282 RIS BibTex EndNote
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Last revised: February 24, 2014