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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:
2015-07-14
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted according to a relevant test method and in accordance with a recognised quality system
Qualifier:
according to guideline
Guideline:
DIN 51562 Part 1 (Viscometry - Measurement of kinematic viscosity by means of the Ubbelohde viscometer - Part 1: Viscometer specification and measurement procedure)
GLP compliance:
no
Other quality assurance:
other: ISO 9001:2008
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.98

The viscosity results are shown below:

Test 1:

Capillary tube: I

Correction factor 0.009665

Measured time [s]

Mean value [s]

206

206

206

205

206

206

 Calculation: Viscosity [mm2/s] = time (mean value) x correction factor = 1.9910

Test 2:

Capillary tube: I

Correction factor 0.009678

Measured time [s]

Mean value [s]

204

204

204

204

204

204

Calculation: Viscosity [mm2/s] = time (mean value) x correction factor = 1.9743

Mean viscosity = 1.98 mm2/s at 20°C

 

Conclusions:
A viscosity value of 1.98 mm2/s at 20°C was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Viscosity: 1.98 mm2/s at 20°C (DIN 51562)

Key value for chemical safety assessment

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

Additional information

A measured kinematic viscosity value of 1.98 mm2/s at 20°C was determined for the substance using a relevant test method and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable and is selected as key study. The key study is supported by a predicted kinematic viscosity value of 2 mm2/s at 20°C which was determined for the substance using a validated QSAR estimation method.

In secondary sources to which reliability could not be assigned, viscosity value of 1.9 mm2/s at 20 and 25°C was reported for the substance.