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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
August 3, 2012 - August 6, 2012
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
GLP compliance:
yes (incl. certificate)
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
11.2
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
5.365

Results at 20 ºC:

 

Test No.

 

Test temperature

 

 

Flow time

 t

The difference in flow time of two consecutive measurements

 

Viscosity

 ν

The difference between any and average viscosityt

 

[°C]

[ s ]

[%]

[mm2/s]

[% ]

1

20.00

385.66

0.005

0.015

11.1996

0.002

2

20.00

385.64

11.1990

0.007

3

20.00

385.70

11.2007

0.008

Average

11.1998

-

Results at 40 ºC:

 

Test No.

 

Test temperature

 

 

Flow time

t

The difference in flow time of two consecutive measurements

 

Viscosity

ν

The difference between any and average viscosityt

 

[°C]

[ s ]

[%]

[mm2/s]

[% ]

1

40.00

532.66

0.154

0.066

5.3692

0.080

2

40.00

531.84

5.3609

0.075

3

40.00

532.19

5.3644

0.009

Average

5.3649

-

Conclusions:
The determined average kinematic viscosity of the tested material at 20 °C was 11.1998 mm2/s and at 40 ºC was 5.3649 mm2/s.
Executive summary:

The determination of kinematic viscosity of the test substance was performed according to the OECD 114 Guideline, with GLP. The Ubbelohde capillary viscometer was used and the measurements were performed at 20 and 40 ºC. The determined average kinematic viscosity of the tested material at 20 °C was 11.1998 mm2/s and at 40 ºC was 5.3649 mm2/s.

Description of key information

Key study: Test method OECD 114. GLP study. The determined average kinematic viscosity of the tested material at 20 °C was 11.1998 mm2/s and at 40 ºC was 5.3649 mm2/s.

Key value for chemical safety assessment

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

Additional information

Key study: The determination of kinematic viscosity of the test substance was performed according to the OECD 114 Guideline, with GLP. The Ubbelohde capillary viscometer was used and the measurements were performed at 20 and 40 ºC.The determined average kinematic viscosity of the tested material at 20 °C was 11.1998 mm2/s and at 40 ºC was 5.3649 mm2/s.