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Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 February 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Test method according to OECD Guideline 114. GLP study.
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
Qualifier:
according to
Guideline:
ISO 3104 (Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity)
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:
1.46
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.11

Table 1: The results of viscosity determination

Test No.

Test
temperature

Flow time t

The difference of
flow time of two
consecutive
measurements

Viscosity ν

The difference
between any and
average viscosity t

[ºC]

[ s ]

[ % ]

[mm2/s]

[ % ]

1.

20

503.72

0.04

1.4618

0.02

2.

20

503.51

1.4612

0.02

 

 

 

Average

1.4615

-

1.

40

382.66

0.06

1.1105

0.03

2.

40

382.88

1.1111

0.03

 

 

 

Average

1.1108

-

Conclusions:
The determined average kinematic viscosity of the tested material is 1.46 mm2/s at 20ºC and 1.11 mm2/s at 40ºC.

Executive summary:

The determination of viscosity of test item was performed according to OECD Guideline 114 and ISO 3014, using Ubbelohde capillary viscometer to measure the kinematic viscosity. The experiment was conducted in two replications at 20ºC and 40ºC. The determined average kinematic viscosity of the test item was 1.46 mm2/s at 20ºC and 1.11 mm2/s at 40ºC.

Endpoint:
viscosity
Type of information:
other: company data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
equivalent or similar to
Guideline:
ISO 3104 (Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity)
GLP compliance:
no
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.502
Remarks on result:
other: Experiment 1
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.504
Remarks on result:
other: Experiment 2
Conclusions:
The kinematic viscosity of the test item was determined to be 1.5018-1.5039 mm2/s at 20ºC.

Executive summary:

The determination of viscosity of the test item was performed using the Cannon-Fenske Viscometer (ISO 3104). Two independent experiments were conducted at 20ºC. The kinematic viscosity of the test item was determined to be 1.5018-1.5039 mm2/s.

Description of key information

Key study: OECD Guideline 114. GLP study: The determined average kinematic viscosity of the tested material is 1.46 mm2/s at 20ºC and 1.11 mm2/s at 40ºC.

Supporting study: Cannon-Fenske Viscometer (ISO 3104). The kinematic viscosity of the test item was determined to be 1.5018-1.5039 mm2/s.

Key value for chemical safety assessment

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

Additional information

Key study: The determination of viscosity of test item was performed according to OECD Guideline 114 and ISO 3014, using Ubbelohde capillary viscometer to measure the kinematic viscosity. The experiment was conducted in two replications at 20ºC and 40ºC. The determined average kinematic viscosity of the test item was 1.46 mm2/s at 20ºC and 1.11 mm2/s at 40ºC.