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Diss Factsheets

Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
06 March 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
The test material was placed in the annular gap between the two coaxial cylinders of the rotational viscometer and the speed and the torque necessary to overcome the frictional resistance of the test material determined. The viscosity was calculated automatically. The procedure was repeated three times.
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
58 835
Conclusions:
The viscosity of the test material was 58.835 Pa s.
Executive summary:

The viscosity of the test material was determined using a rotational viscometer.

The test material was placed in the annular gap between the two coaxial cylinders of the rotational viscometer and the speed and the torque necessary to overcome the frictional resistance of the test material determined. The viscosity was calculated automatically. The procedure was repeated three times.

The test was performed at 40 ± 0.5 °C.

The viscosity of the test material was determined to be 58.835 Pa s.

Description of key information

The viscosity of the test material was 58.835 Pa. s at 40 ± 0.5 °C.

Key value for chemical safety assessment

Viscosity:
58 835 mPa · s (dynamic)
at the temperature of:
40 °C

Additional information

The viscosity of the test material was determined using a rotational viscometer. The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

During the study, the test material was placed in the annular gap between the two coaxial cylinders of the rotational viscometer and the speed and the torque necessary to overcome the frictional resistance of the test material determined. The viscosity was calculated automatically. The procedure was repeated three times.

The test was performed at 40 ± 0.5 °C.

The viscosity of the test material was determined to be 58.835 Pa s.