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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04.04.2016 to 29.06.2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
Qualifier:
according to
Guideline:
DIN 51562 Part 1 (Viscometry - Measurement of kinematic viscosity by means of the Ubbelohde viscometer - Part 1: Viscometer specification and measurement procedure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
48.78
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
20.83

 

Measurements [s]

 

Pre-test at 20°C

at 20°C

at 40°C

1st run

154.99

483.80

206.60

2nd run

155.11

483.19

206.59

3rd run

155.16

483.26

206.40

4th run

155.13

483.24

206.42

5th run

154.96

483.52

206.43

6th run

154.85

483.55

206.43

Mean value off low time[s]

155.033

483.427

206.478

Hagenbach correction [s]

0.000

0.001

0.005

Corrected flow time [s]

155.033

483.426

206.473

Viscometer constant [mm2s-2]*

0.3139

0.1009

0.1009

Kinematic viscosity [mm2 s-1]

48.665

48.778

20.833

*Different capillaries were used for the pre-test and the main tests, resulting in different flow times.

Conclusions:
The kinematic viscosity of the test item was determined according to OECD guideline no. 114
[adopted on 02 October 2012] and standard method DIN 51562- part 1 (1999) with the capillary
viscometer method.
Kinematic viscosity at 20 °C [mm2 s·1]: 48.78
Kinematic viscosity at 40 °C [mm2 s-1]: 20.83

Description of key information

The kinematic viscosity of the test item was determined according to OECD guideline no. 114

[adopted on 02 October 2012] and standard method DIN 51562- part 1 (1999) with the capillary

viscometer method.

Kinematic viscosity at 20 °C [mm2 s·1]: 48.78

Kinematic viscosity at 40 °C [mm2 s-1]: 20.83

Key value for chemical safety assessment

Viscosity:
48.78 mm²/s (static)
at the temperature of:
20 °C

Additional information