Important notice: Website update - 21st of January 2025
We're merging our website with our main site and to offer a more streamlined experience. To make the switch smooth, this website will be unavailable for maintenance today. This means you won't be able to purchase publications. Don't worry, everything will be available on the new site by the end of the day. To avoid any hiccups, we recommend holding off on purchases until then. Thank you for your patience, and see you on the new site soon!
IP 543: Determination of the viscosity and calculation of kinematic viscosity - Automatic capillary tube method
- Method adopted/last revised:
- Method reapproved: 2022
- REF/ISBN:
- Status: Current
- First printed in STM books: 2010
-
This standard describes a method for the determination of the viscosity of distillate fuels, residual fuels, and used oils as well as other transparent and opaque liquids using a computer controlled automatic capillary viscometer.
The kinematic viscosity is calculated from the dynamic viscosity by dividing by the density at the test temperature. The density is either determined at the same time as the dynamic viscosity automatically or by a standard test method.
The automatic capillary viscometer is suitable for determining viscosity in the temperature range 20°C to 100°C. Viscosity index is calculated from the kinematic viscosity values at 40°C and 100°C.
Members Benefits
Are you an EI Member? If yes, register/log in now to ensure you receive free access or discounts to EI publications.
If you are not a Member, why not join today and receive all of the benefits of EI Membership? EI Members are entitled to a 25% discount on most EI publications.