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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 December 2010
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)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.206 other: dimensionless
Temp.:
20 °C

Table 1: Results of the Study

Measured Mass (g)

Measured Volume (cm³)

Density D420

0.748

0.621

1.204

1.161

0.961

1.208

0.928

0.768

1.208

0.798

0.663

1.204

0.650

0.540

1.204

Average

1.206

Standard Deviation

0.002

95% Confidence Interval

0.0027
Conclusions:
Under the conditions of this study, the measured relative density (D420) of the test material was determined to be 1.206.
Executive summary:

The relative density of the test material was investigated in accordance with the standardised guidelines OECD 109, EU Method A.3. and OPPTS 830.7300, under GLP conditions.

A fully automatic determination of the density was carried out with the help of MINIDENS Density Meter. The density measurement was performed at 20°C. It was started with the tare measurement of the empty sample cup. Then the sample was filled into the sample cup and placed onto the balance platform. After the temperature equilibrium was reached the compression procedure was started and the pressure inside the chamber was monitored. The mass, volume and the density were displayed and printed. The mean of five consecutive measurements was reported.

Under the conditions of this study, the measured relative density (D420) of the test material was determined to be 1.206.

Description of key information

Under the conditions of the study, the measured relative density (D420) of the test material was determined to be 1.206.

Key value for chemical safety assessment

Relative density at 20C:
1.206

Additional information

The relative density of the test material was investigated in accordance with the standardised guidelines OECD 109, EU Method A.3. and OPPTS 830.7300, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A fully automatic determination of the density was carried out with the help of MINIDENS Density Meter. The density measurement was performed at 20 °C. It was started with the tare measurement of the empty sample cup. Then the sample was filled into the sample cup and placed onto the balance platform. After the temperature equilibrium was reached the compression procedure was started and the pressure inside the chamber was monitored. The mass, volume and the density were displayed and printed. The mean of five consecutive measurements was reported.

Under the conditions of the study, the measured relative density (D420) of the test material was determined to be 1.206.