Measuring Method I (Comparative Measurements); Measuring Method Ii; Influence Of The Temperature On Viscosity; Non-Newtonian Behaviour - SKF TMVM 1 Instrucciones De Uso

4.2

Measuring method I (comparative measurements)

The rotor is immersed in any available vessel.
The distance between rotor and wall of the vessel
should not be smaller than the diameter of the
rotor.
Advantage:
For comparative measurements, easy
measurement, easy cleaning.
4.3

Measuring method II

Measurement in measuring cup.Temperature
control in circulator bath possible.
Advantage:
- Exact, reproducible measuring conditions.
- Smallest sample volume (about 150 ml)
- Exact temperature control possible.
4.4

Influence of the temperature on viscosity

Viscosity is very dependant on temperature. Therefore, the tested oil should
exactly be temperature controlled for all viscosity measurements, regardless of the
type of viscometer used. To be correct the temperature should be recorded for
each viscosity value, e.g. η
160 milli Pascalseconds).
4.5

Non-Newtonian behaviour

Test results of purely viscous (Newtonian) liquids (e.g. mineral or synthetic oils)
obtained with a viscometer can directly be compared with the results of other
viscometers.
16
= 160 mPas (i.e.: the viscosity (η) at 26.3°C is
26.3°C
Fig. 7
Fig. 8
SKF TMVM 1