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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:
2012-01-12
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
GLP compliance:
yes (incl. QA statement)
Remarks:
signed 2010-08-25
Type of method:
air comparison pycnometer (for solids)
Key result
Type:
relative density
Density:
0.99 other: dimensionless
Temp.:
20 °C
Remarks on result:
other: mean of two measurements

Table:      Results of the measurement of the density of the test item






























Test No.



Temperature [°C]



Test item chamber size



Reference vessel No



Weight in of test item [g]



Density [g/cm³]*



1



20



Small (25.62 cm³)



76 (21.35 cm³)



5.94



0.99147



2



20



Small (25.62 cm³)



76 (21.35 cm³)



5.66



0.99349



* The pressurizing-expansion cycles are performed until 5 subsequent volume measurements have a relative standard deviation (RSD) of ≤ 0.02 %.


The mean density of the test item at 20 °C is 0.99248 g/cm³. The relative density D420 is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).


The relative density is          D420 = 0.99.

Conclusions:
According to Regulation EC 440/2008 Method A.3. and OECD 109 the relative density D420 of the test item at 20 °C ± 0.01 °C (compared to water at 4 °C) is D420 = 0.99.

Description of key information

key data relative density: D420 at 20 °C ± 0.01 °C (compared to water at 4 °C) = 0.99.

Key value for chemical safety assessment

Relative density at 20C:
0.99

Additional information

According to Regulation EC 440/2008 Method A.3. and OECD 109 the relative density D420 of the test item at 20 °C ± 0.01 °C (compared to water at 4 °C) is D420 = 0.99.