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relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1995-04-24 to 1995-04-25
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 is specified in the report, and isomers composition is available from the notifier. Therefore full validation applies.
according to guideline
EU Method A.3 (Relative Density)
Version / remarks:
Commission Directive 92/69/EEC
GLP compliance:
yes (incl. QA statement)
Inspected on 31 January 1994. Signed on 16 March 1994
Type of method:
pycnometer method
Dynamic viscosity of test material:
no data
927.26 kg/m³
20 °C
Key result
relative density
0.927 other: relative density has no dimension
20 °C

1 2
a = mass of pycnometer (g) 29.8927 26.1825
b = mass of pycnometer and distilled water at 20°C (g) 79.7913 75.9885
c = mass of pycnometer and test material at 20°C (g) 76.2496 72.4438
d = density of water at 20.0°C (kg/m3) 998.20
Density of test material (kg/m3) 927.35 927.16

Mean density of test material = 927.26 kg/m3

Density of water at 4.0°C = 1000 kg/m3

Relative density of test material (D20/4) = 927.26 / 1000 = 0.92726

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 determinations were performed; results were consistent, so the average value was retained. The final density was converted to relative density vs density of water at 4°C.

The relative density D20/4 of test substance has been determined to be 0.927.

Description of key information

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. Therefore, it is considered as a key study. The result is retained as key data.