14-10-2014

Viscosity measurement of jet and diesel fuels according to ASTM D1655 and D975

Anton Paar’s SVM 3000 viscometer allows for simultaneous determination of both dynamic viscosity and density as well as the calculation of kinematic viscosity. Its precision equals ASTM D445 with significant advantages.
 
ASTM D445 was originally approved almost 50 years ago, in 1965, and refers to a single measurement method: kinematic glass capillary viscometers. So, why the need for change? In contrast to capillary viscometers, SVM 3000 measures dynamic viscosity and density and automatically calculates kinematic viscosity in one single measurement. It provides results with a precision equal to D445 while measuring up to 4 times faster, using up to 4 times less solvent and up to 2 times less sample, thus saving operator time and resources. SVM 3000 does not require thermostat baths; instead it features a highly precise thermoelectric temperature control with a stability of 0.005 °C, so that temperature changes are fast and very accurate. Furthermore, SVM 3000 does not require the use of any capillaries: One single integrated measuring cell covers the entire measuring range for viscosity, density and temperature and is filled in one go. SVM 3000 is well suited for use in mobile labs and service vehicles, as it is insensitive to vibrations and small.

For jet fuel testing, temperatures as low as -56 °C are conveniently reached using an external circulation cooler.
 
The measuring principle of SVM 3000 is unique; it is the only instrument to meet the ASTM D7042 standard. This method is referenced in the following ASTM specifications for Jet and Diesel Fuels:
- ASTM D1655: Standard Specification for Aviation Turbine Fuels

- ASTM D7566: Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons

- ASTM D975: Standard Specification for Diesel Fuel Oils

For more information, please visit www.anton-paar.com.