In case you do not find the information you are looking for in Viscopedia, please contact the Viscopedia team so the content can be expanded according to your needs. The new Viscopedia is a unique online knowledge platform which is meant to offer a broad range of information to everyone entering the world of viscometry. Publications: Users gain direct access to more content such as applications, literature and standard methods regarding viscosity.Įvents: This section gives information & direct links to exhibitions in which manufacturers of analytical instruments present their viscometers. A calculation of the Viscosity Index, a viscosity temperature extrapolation according to ASTM D341, the conversion of dynamic to kinematic viscosity, Saybolt Furol and Saybolt Universal viscosity are included. Viscosity tables: Obtain measurement data at various temperatures for your substance of interest.Ĭalculator: An interactive calculator makes cumbersome manual conversions easy.

Compare different instruments and find the right instrument for your application. Calculator for viscosity index (VI) according to ASTM D2270 and ISO 2909. Methods: Find out more about measuring principles and instrument categories. The viscosity index can be calculated using the following formula: where U is the oils kinematic viscosity at 40 ☌ (104 ☏), Y is the oils kinematic viscosity at 100 ☌ (212 ☏), and L and H are the viscosities at 40 ☌ for two hypothetical oils of VI 0 and 100 respectively, having the same viscosity at 100 ☌ as the oil whose VI we are trying to determine. Standard practice for calculating viscosity index from kinematic viscosity at 40 and 100☌. Viscopedia offers a wealth of information ranging from the definition of viscosity and basics of flow behavior, types of viscosity, explanations of different measuring principles and instruments to real examples of measurements and applications.īasics: Refresh your knowledge on the basics of viscometry, such as the definition of viscosity, types of viscosity as well as the main factors affecting viscosity.

A new knowledge platform now offers extensive know-how on viscometry: Viscopedia, from Anton Paar (Austria).

Anton paar viscosity index calculator