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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:
18 September 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to OECD/EU guideline, and under GLP. No deviation was reported. Test substance is adequately specified with purity. Therefore full validation applies.
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
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
inspected on June 3 to 5, 2013 / signed on November 5, 2013
Type of method:
pycnometer method
Specific details on test material used for the study:
Storage condition of test material: 20 ± 2 °C, protected from light, in the tightly closed original container
Type:
density
Density:
0.941 g/cm³
Temp.:
20 °C
Remarks on result:
other: corresponding to 941.0 kg/m3
Key result
Type:
relative density
Density:
0.941
Temp.:
20 °C

Table 4.4/1: Density of the Test Item

Replicate

No. 1

No. 2

No. 3

VP

25.1616

25.2211

24.9847

mP

20.4571

20.7421

20.2534

mPTI

44.1378

44.4758

43.7615

TP

20.0

20.0

20.0

pTI

0.9411

0.9410

0.9409

Mean value (g/cm3)

0.9410

RSD (%)

0.009

 

VP= Volume of the calibrated pycnometer [cm3]

mp= Mass of the empty pycnometer [g]

mPTI= Mass of the pycnometer filled with test item [g]

TP= Temperature of the pycnometer at point of measurement [°C]

pTI= Density of the test item [g/cm3]

CV = Coefficient of variation [%]

 

The relative density of the test item was calculated to be 0.9410.

 

Temperature Control

During the equilibration time the temperature was kept constant at 20.0 ± 0.1 °C, for temperatures at moments of weighing (TP).

 

Validity Criteria

The temperatures at moments of weighing were kept constant within 20.0 ± 0.1 °C. 

The relative standard deviation (RSD) of three replicate measurements was 0.009%.

Conclusions:
The substance is less dense than water.
Executive summary:

The relative density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method. The sample weight was measured in triplicate at 20 °C, and the mean relative density was calculated from the nominal volume of the pycnometer.

The density of the test substance at 20 °C was determined to be 0.9410 g/cm3 corresponding to 941.0 kg/m3. The relative density D20/4 of the test substance under liquid form has been calculated to be 0.9410.

Description of key information

The substance is less dense than water.

Key value for chemical safety assessment

Relative density at 20C:
0.941

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study. The result is retained as key data.