Absolute Viscosity and Sample Density Measurement Methods to Determine and Report Absolute and Kinematic Viscosity Values for Used Lubricating Oils

2013 ◽  
pp. 66-76
Author(s):  
Evan Bupp ◽  
Lisa Williams ◽  
Rich Wurzbach ◽  
George Staniewski
Keyword(s):  
Kinematic Viscosity ◽  
Density Measurement ◽  
Measurement Methods ◽  
Lubricating Oils ◽  
Sample Density ◽  
Absolute Viscosity

scholarly journals First density comparison on viscoelastic samples by oscillation-type densimetry

ACTA IMEKO ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 79
Author(s):  
A. Furtado ◽  
J. Pereira ◽  
R. Quendera ◽  
M. Schiebl ◽  
E. Lenard ◽  
...  
Keyword(s):  
International Comparison ◽  
Density Measurement ◽  
Measurement Methods ◽  
Newtonian Fluids ◽  
Density Measurements ◽  
Oscillation Type ◽  
Hydrostatic Weighing ◽  
Damping Effects

To provide a deeper insight about the damping effects produced by the viscoelasticity of non- Newtonian fluids during density measurements with oscillation-type density meters, and about how reference laboratories overcome these effects, an international comparison was performed, within the scope of the EMPIR Project 17RPT02 rhoLiq. The results of the comparison evidenced the possibility to measure density of viscoelastic samples by means of oscillation-type density meters with an uncertainty between 0.10 kg·m<sup>-3</sup> and 0.25 kg·m<sup>-3</sup>. However, these instruments may be able to reach lower uncertainties if compared with higher precision density measurement methods such as hydrostatic weighing.

Determination of Kinematic Viscosity of Used Lubricating Oils Using Houillon Viscometer

2011 ◽  
Vol 8 (7) ◽  
pp. 103138
Author(s):  
S. W. Dean ◽  
R. A. Kishore Nadkarni ◽  
Janet L. Lane
Keyword(s):  
Kinematic Viscosity ◽  
Lubricating Oils
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