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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:
4 June 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Test method according to EEC A.3. GLP study.
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method
Remarks:
(ISO 3507:1999)
Key result
Type:
relative density
Density:
0.955
Temp.:
20 °C

Test No.

Mass of empy pycnometer (g)

Mass of pycnometer with water (g)

Mass of pycnometer with tested material (g)

1

20.4142

45.5091

44.4169

2

20.4141

45.5095

44.4177

The average measured absolute density of the tested material at 20 °C temperature was 0.955 g/ml.

The average calculated relative density of the tested material at 20 °C temperature was 0.955.

Absolute density:

p = [(m – m0) / V] + pa

Where:

p: absolute density of the tested material at 20 °C (g/ml)

pa: air density at temperature 20 °C = 0.0012 (g/ml)

V: pycnometer volume (ml)

V = (m1– m0) / (pw– pa)

Where:

pw: water density at 20 ºC temperature = 0.9982 g/ml

Relative density:

p204= P / P4water

p20: relative density, the absolute density in relation to water at 4 °C.

p4water: water density at 4 °C temperature ca. 1.0000 g/ml.

Conclusions:
The relative density was determined to be 0.955 at 20 ºC.
Executive summary:

The relative density of the test item was performed according to EEC A.3 using the Gay-Lussac pycnometer (ISO 3507:1999).

The average calculated relative density of the tested material at 20 °C temperature was 0.955.

Description of key information

Key study: Test  method EEC A.3. GLP study. The relative density of test item is 0.955 at 20 ºC.

Key value for chemical safety assessment

Relative density at 20C:
0.955

Additional information

Key study: The relative density of the test item was performed according to EEC A.3 using the Gay-Lussac pycnometer (ISO 3507:1999). The relative density of the tested material at 20 °C temperature was 0.955.