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relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1995-02-20 to 1995-07-15
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. Purity and isomers composition are available from the notifier. Therefore full validation applies.
Reason / purpose:
reference to other study
according to
EU Method A.3 (Relative Density)
GLP compliance:
yes (incl. certificate)
UK GLP compliance programme (inspected on 31 January 1994 / signed on 16 March 1994)
Type of method:
pycnometer method
Specific details on test material used for the study:
Storage conditions: metal bottle at room temperature.
Dynamic viscosity of test material:
14.8 mPa.s at 20°C (please refer to IUCLID section 4.22)
938.33 kg/m³
20 °C
Key result
relative density
0.938 other: relative density is dimensionless
20 °C

1 2
a = mass of pycnometer (g) 26.1810 33.7033
b = mass of pycnometer and distilled water at 20°C (g) 76.0178 82.9598
c = mass of pycnometer and test material (g) Temperature of test material (°C) 73.023019.5 80.011020.5
d = density of water at 20.0°C (kg/m3) 998.20
Density of test material (kg/m3) 938.22 938.44

Mean density of test material = 938.33 kg/m3

Density of water at 4.0°C = 1000.0 kg/m3

Relative density of test material = 938.33 / 1000 = 0.93833

The substance is less dense than water.
Executive summary:

The density of the test substance was measured under GLP according EU A3 guideline, pycnometer method.

Two runs were performed, and the mean density at 20.0°C was calculated. This results was then converted to relative density towards water at 4°C.

The density of the test substance at 20.0°C is 938.33 kg/m3, and its relative density (D20°C/4°C) is 0.938.

Description of key information

Density at 20°C is 938.33 kg/m3

Relative density (D 20/4) = 0.93833

The substance is less dense than water.

Key value for chemical safety assessment

Relative density at 20C:

Additional information

A fully reliable experimental study, conducted according to a recognized EC method and under GLP, is available. It is therefore considered as a key study. The result is retained as key data for purpose of CSA.