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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 March 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Specific details on test material used for the study:
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage conditions: Controlled room temperature in a dark store room.
Key result
Type:
relative density
Density:
1.187 other: Dimensionless
Temp.:
20 °C
Key result
Type:
density
Density:
1 187 kg/m³
Temp.:
20 °C

Determining the Density of the Immersion Liquid

Mass of empty pycnometer (g)

24.21

Volume of pycnometer (mL)

25.6

Mass water & pycnometer (g)

49.82

Density of water (g/cm3) (ρw,t)

1.002

Mass of IL & pycnometer (g)

49.18

Mass IL in pycnometer (g) (m1)

24.97

Calculated density of IL (g/cm3)

0.977

Density of IL (kg/m3)

977

 

Determining the Density of the Sample 

Run Number

1

2

Mass of Empty Pycnometer (g)

24.21

24.21

Mass of Sample & Pycnometer (g)

36.55

35.81

Mass of Sample added to empty Pycnometer (g) ms

12.34

11.59

Mass of Sample, Pycnometer & immersion liquid

51.36

51.24

Mass of immersion liquid added (g) m^2

14.81

15.43

Calculated Density of Sample (g/cm^3)

1.186

1.187

Density of Sample (kg/m^3)

1186

1187

Mean Result (kg.m^-3)

1187

Conclusions:
Under the conditions of this study, the density of the test material at 20 °C was 1187 Kg/m³. The relative density was 1.187.
Executive summary:

The density and relative density of the test material were determined in accordance with the standardised guidelines OECD 109 and EU Method A.3 under GLP conditions using a pycnometer.

The density is calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests are run at a constant temperature, preferably 20 °C, and at least two measurements are performed.

Under the conditions of this study, the density of the test material at 20 °C was 1187 Kg/m³. The relative density was 1.187.

Description of key information

Under the conditions of this study, the density of the test material at 20 °C was 1187 Kg/m³. The relative density was 1.187.

Key value for chemical safety assessment

Relative density at 20C:
1.187

Additional information

The density and relative density of the test material were determined in accordance with the standardised guidelines OECD 109 and EU Method A.3 under GLP conditions using a pycnometer. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The density is calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests are run at a constant temperature, preferably 20 °C, and at least two measurements are performed.

Under the conditions of this study, the density of the test material at 20 °C was 1187 Kg/m³. The relative density was 1.187.