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Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Not specified
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study performed to recognised standard at an accredited laboratory.
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
other: ASTM D445-03
Deviations:
not specified
GLP compliance:
no
Remarks:
Performed at a laboratory accredited to ISO 17025
Type of method:
capillary viscometer (static)
Temp.:
40°C
Parameter:
other: cSt
Value:
20.42
Temp.:
other: 100.0°C
Parameter:
other: cSt
Value:
4.339
Conclusions:
Viscosity:20.42 cSt @ 40°C4.339 cSt @ 100°C
Executive summary:

Study performed to ASTM D445 -03 at a ISO 17025 accredited laboratory.

Viscosity:

20.42 cSt @ 40°C

4.339 cSt @ 100°C

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
11 October 2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Conducted in accordance with ASTM D7042 – 11 Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity). This is a non-GLP method, and is considered to be a K2 study, on the basis that it is an accepted method and describes the viscosity for oil based products accurately.
Qualifier:
according to
Guideline:
other: ASTM D7042 – 11 Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)
Deviations:
no
Principles of method if other than guideline:
The test specimen is introduced into the measuring cells, which are at a closely controlled and known temperature. The measuring cells consist of a pair of rotating concentric cylinders and an oscillating U-tube. The dynamic viscosity is determined from the equilibrium rotational speed of the inner cylinder under the influence of the shear stress of the test specimen and an eddy current brake in conjunction with adjustment data. The density is determined by the oscillationfrequency of the U-tube in conjunction with adjustment data. The kinematic viscosity is calculated by dividing the dynamic viscosity by the density
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
13.5
Remarks on result:
other: Reported as cSt. Attributed to Grade 3cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
3.2
Remarks on result:
other: Reported as cSt. Attributed to Grade 3cSt
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
19.2
Remarks on result:
other: Reported as cSt. Attributed to Grade 4cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
4.2
Remarks on result:
other: Reported as cSt. Attributed to Grade 4cSt
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
44.1
Remarks on result:
other: Reported as cSt. Attributed to Grade 7cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
7.2
Remarks on result:
other: Reported as cSt. Attributed to Grade 7cSt
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
107.2
Remarks on result:
other: Reported as cSt. Attributed to Grade 14cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
13.1
Remarks on result:
other: Reported as cSt. Attributed to Grade 14cSt

The viscosity index in accordance with ASTM method D 2270 – 04 is also presented.The viscosity index is a widely used and accepted measure of the variation in kinematic viscosity due to changes in the temperature of a petroleum product between 40 and 100°C. A higher viscosity index indicates a smaller decrease in kinematic viscosity with increasing temperature of the lubricant. The viscosity index is used in practice as a single number indicating temperature dependence of kinematic viscosity.

 

Conclusions:
Due to the viscosity of the different grades, dual classification is applied as follows:Grades 3cSt and 4cSt are of a viscosity that triggers classification as Asp. Tox. 1; H304: May be fatal if swallowed and enters airways under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures. Grades 7cSt and 14cSt are of a viscosity that does not trigger classification as an aspiration hazard under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures.
Executive summary:

The derived viscosity of the samples is determined to be:

Viscosity grade

KV at 40ºC

KV at 100 ºC

cSt

cSt

3 cSt

13.5

3.2

4 cSt

19.1

4.2

7 cSt

44.1

7.2

14 cSt

107.2

13.1

 

Commercially available white oils are quantified based on their physico-chemical properties; namely boiling point and associated viscosity. Due to the viscosity of the different grades, dual classification is applied as follows:

 

Grades 3cSt and 4cSt are of a viscosity that triggers classification as Asp. Tox. 1; H304: May be fatal if swallowed and enters airways under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures. 

 

Grades 7cSt and 14cSt are of a viscosity that does not trigger classification as an aspiration hazard under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures.

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
07 May 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Conducted in accordance with ASTM D7042 – 11 Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity). This is a non-GLP method, and is considered to be a K2 study, on the basis that it is an accepted method and describes the viscosity for oil based products accurately.
Qualifier:
according to
Guideline:
other: ASTM D7042 – 11 Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)
Deviations:
no
Principles of method if other than guideline:
The test specimen is introduced into the measuring cells, which are at a closely controlled and known temperature. The measuring cells consist of a pair of rotating concentric cylinders and an oscillating U-tube. The dynamic viscosity is determined from the equilibrium rotational speed of the inner cylinder under the influence of the shear stress of the test specimen and an eddy current brake in conjunction with adjustment data. The density is determined by the oscillationfrequency of the U-tube in conjunction with adjustment data. The kinematic viscosity is calculated by dividing the dynamic viscosity by the density
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
13 - 20
Remarks on result:
other: Reported as cSt. Attributed to Grade 3-4cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
3 - 5
Remarks on result:
other: Reported as cSt. Attributed to Grade 3-4cSt
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
43 - 73
Remarks on result:
other: Reported as cSt. Attributed to Grade 7-10cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
7 - 10
Remarks on result:
other: Reported as cSt. Attributed to Grade 7-10cSt
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
85 - 141
Remarks on result:
other: Reported as cSt. Attributed to Grade 12-16cSt
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
11 - 16
Remarks on result:
other: Reported as cSt. Attributed to Grade 12-16cSt
Conclusions:
Different grades carry different viscosities. Grade 3-4 cSt carries an aspiration hazard, other grades do not.
Executive summary:

 Conducted in accordance with ASTM D7042 – 11 Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)

 

Viscosity Grade

KV at 40°C

KV at 100°C

 

cSt

cSt

3 – 4 cSt

13 -20

3 – 5

7 – 10 cSt

42 – 73

7 – 10

12 -16 cSt

85 – 141

11 – 16

 

Description of key information

Viscosity assessment

Key value for chemical safety assessment

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

Additional information

The derived viscosities of the different grades were determined to be:

Viscosity grade

KV at 40ºC

KV at 100 ºC

cSt

cSt

3 cSt

13.5

3.2

4 cSt

19.1

4.2

7 cSt

44.1

7.2

14 cSt

107.2

13.1

 

Viscosity grade

KV at 40ºC

KV at 100 ºC

cSt

cSt

3 - 4cSt

13 - 20

3 - 5

7 - 10cSt

42 -73

7 - 10

12 - 16cSt

85 - 141

11 - 16

KV at 40ºC

KV at 100 ºC

cSt

cSt

20.42

4.339

Commercially available white oils are quantified based on their physico-chemical properties; namely boiling point and associated viscosity. Due to the viscosity of the different grades, dual classification is applied as follows:

 

Grades 3cSt and 4cSt are of a viscosity that triggers classification as Asp. Tox. 1; H304: May be fatal if swallowed and enters airways under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures. 

 

Grades 7cSt to16cST are of a viscosity that does not trigger classification as an aspiration hazard under the CLP Regulation. European Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures.