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Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Remarks:
Average of 235 QC results
Adequacy of study:
key study
Study period:
2012-08-20
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study not conducted to GLP standards and no indication of the variation between individual results.
Qualifier:
according to
Guideline:
other: ASTM D445-97
Deviations:
not specified
GLP compliance:
no
Type of method:
capillary viscometer (static)
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
ca. 52.2
Remarks on result:
other: Mean of 235 QC values
Remarks:
expressed as cSt
Temp.:
other: 100.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
ca. 7.16
Remarks on result:
other: Mean of 235 QC values
Remarks:
expressed as cSt
Conclusions:
The viscosity of the test material at 100°C was determined to be 7.16 cSt and 52.2 cSt at 40°C.
Executive summary:

Test Guidance

The viscosity of the test substance was determined according to ASTM D445-97 Standard Test Method for Kinematic Viscosity of Transparent and Opaque liquids (the Calculation of Dynamic Viscosity).

Method and materials

Viscosities were measured on 235 different QC batches at two temperatures,

Results

The mean values obtained were:

Viscosity at 100°C is 7.16 cSt

Viscosity at 40°C is 52.2 cSt

Endpoint:
viscosity
Type of information:
other: company data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given. Certificate of Analysis.
Principles of method if other than guideline:
No more details available about method.
GLP compliance:
no
Type of method:
other: measured
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
19.8
Temp.:
other: 100.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
4.5
Endpoint:
viscosity
Type of information:
other: company data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given. Certificate of Analysis.
Qualifier:
according to
Guideline:
other: ER020120
GLP compliance:
no
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
32
Temp.:
other: 100.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
5.8
Endpoint:
viscosity
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: analogue substance
Justification for type of information:
Investigation of viscosity is not required because available data indicate that structural variation does not influence test results or adverse effect profile (see read-across and category justifications attached in Section 13).
Reason / purpose:
read-across source
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
52.2
Remarks on result:
other: mean of 235 QC results
Remarks:
expressed as cSt
Temp.:
other: 100 °C.
Parameter:
kinematic viscosity (in mm²/s)
Value:
7.16
Remarks on result:
other: mean of 235 QC results
Remarks:
expressed as cSt

Description of key information

The viscosity of the analogue test material at 100°C was determined to be 7.16 cSt and 52.2 cSt at 40 °C (ASTM D445 -97).

Key value for chemical safety assessment

Additional information

The viscosity of the analogue test material at 100°C was determined to be 7.16 cSt and 52.2 cSt at 40°C.