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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:
From May to June 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: AL01
- Expiration date of the lot/batch: 10.09.2019
- Purity test date: not available

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: refrigerated (2 to 8°C)
- Stability under test conditions: not available
- Solubility and stability of the test substance in the solvent/vehicle: not applicable
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: not applicable

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: none
- Preliminary purification step (if any): none
- Final dilution of a dissolved solid, stock liquid or gel: not applicable
- Final preparation of a solid: not applicable

OTHER SPECIFICS: none
Key result
Type:
density
Density:
ca. 1 386 kg/m³
Temp.:
20 °C
Key result
Type:
relative density
Density:
ca. 1.386 other: no units
Temp.:
20 °C

Determining the density of sample:

Run number

1

2

Mass of empty pycnometer (g)

24.08

24.07

Mass of sample & pycnometer (g)

42.58

42.85

Mass of sample added to empty pycnometer (g)

18.50

18.78

Mass of sample, pycnometer & immersion liquid

54.10

54.24

Mass of immersion liquid added

11.53

11.39

Calculated density of sample (g/cm3)

1.383

1.389

Density of sample (kg/m3)

1383

1389

Mean result (kg/m3)

1386

Conclusions:
In a relative density test, conducted according to OECD test guideline 109 and to GLP, a relative density of 1.386 and sample density of 1386 kg/m3 at 20°C were determined for Alfalfa ext.
Executive summary:

A pycnometer method, conducted according to OECD test guideline 109 and to GLP, was performed to determine the relative density of Alfalfa, ext.

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

A relative density of 1.386 and sample density of 1386 kg/m3 were determined for Alfalfa, ext.

Description of key information

Relative density: 1.386

Key value for chemical safety assessment

Relative density at 20C:
1.386

Additional information

A pycnometer method, conducted according to OECD test guideline 109 and to GLP, was performed to determine the relative density of Alfalfa, ext.

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

A relative density of 1.386 and sample density of 1386 kg/m3 were determined for Alfalfa, ext.