Fatty acids, tallow, compds. with triethanolamine

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

7th January 2019 - 15th January 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Deviations:

no

GLP compliance:

yes

Type of method:

rotational viscometer (dynamic)

Standard covering the apparatus used:

The viscosity was measured using a Brookfield Digital Viscometer, Model LVDV-I+, and the small sample adapter with spindle SC4 18. The performance of the viscometer was checked using a standard oil, B200 batch 15601 supplied by Brookfield. The certified viscosity was 195.6 mPa.s at 25°C. The tolerance for the viscometer was ±5 %.

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch No.of test material: E01209-196
- Expiration date of the lot/batch: 20-Septeber-2020
- Purity test date: 100%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

ca. 40.9

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

ca. 102.6

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 110.7

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 44.1

Test	Viscosity (mPa.s)
	20°C	40°C
Ascending	101.7	40.8
Descending	103.4	41.0
Mean	102.6	40.9

The kinematic viscosity was calculated from the mean dynamic viscosity measured at each temperature:

Kinematic viscosity (mm2/s) = dynamic viscosity (mPa.s) / density (g/cm3)

Test Substance	Kinematic Viscosity (mm^2/s)
	20°C	40°C
EXP 1505138	110.7	44.1

Conclusions:

The mean dynamic viscosity for the test item was determined using rotational viscometry in accordance with OECD 114. The results are as follows:
Dynamic Viscosity at 40 degrees Celsius: 40.9 mPa s
Dynamic Viscosity at 20 degrees Celsius: 102.6 mPa s
The kinematic viscosity was calculated and are as follows:
Kinematic viscosity at 20 degrees Celsius: 110.7 mm2/s
Kinematic viscosity at 40 degrees Celsius: 44.1 mm2/s

Executive summary:

The mean viscosity for the test item was determined using rotational viscometry in accordance with OECD 114. The results are as follows:

Dynamic Viscosity at 40 degrees Celsius: 40.9 mPa s

Dynamic Viscosity at 20 degrees Celsius: 102.6 mPa s

The kinematic viscosity was calculated and are as follows:

Kinematic viscosity at 20 degrees Celsius: 110.7 mm2/s

Kinematic viscosity at 40 degrees Celsius: 44.1 mm2/s

Description of key information

The mean viscosity was determined using rotational viscometry in accordance with OECD 114.

Key value for chemical safety assessment

Viscosity:

44.1 mm²/s (static)

at the temperature of:

40 °C

Additional information

The viscosity of the test material was investigated in a study which was performed under GLP conditions and in accordance with the standardised guideline OECD 114.The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).

The dynamic viscosity was measured using a Brookfield Digital Viscometer. The test item was tested at 20°C and 40°C. The kinematic viscosity is calculated from the mean dynamic viscosity measured at each temperature:

Kinematic viscosity at 20 degrees Celsius: 110.7 mm2/s

Kinematic viscosity at 40 degrees Celsius: 44.1 mm2/s