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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
December 09, 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
1.32
Temp.:
20 °C

Results:

A measurement chamber with a volume of Vc = 7.9837 cm3 and an expansion chamber with a volume of Vr = 6.1476 cm3 were used.

Two test series with different weights were performed at ambient temperature (20.0 °C). For results see Table 1 and Table 2.

Table 1: Results of the 1st test series

     Weight: 0.8083 g

p1/ psi

p2/ psi

Volume / cm3

Density rPR/ g·cm-3

1. measurement

19.524

10.624

0.6179

1.3081

2. measurement

19.537

10.651

0.6150

1.3143

3. measurement

19.579

10.673

0.6164

1.3114

Mean

 

 

0.6164

1.3113

Table 2 : Results of the 2nd test series

     Weight: 0.9782 g

p1/ psi

p2/ psi

Volume / cm3

Density rPR/ g·cm-3

1. measurement

19.511

10.558

0.7340

1.3327

2. measurement

19.528

10.569

0.7313

1.3376

3. measurement

19.525

10.565

0.7349

1.3311

Mean

 

 

0.7334

1.3338

Mean density rPR for the two test series: 1.32 g/cm3

Relative density (compared to water at 4 °C) D4R : 1.32 ± 0.01

 

 

Conclusions:
The relative density of the test item was determined to be 1.32
Executive summary:

The relative density of the test itemat ambient temperature (compared to water at 4 °C) was determined to be:


D4R = 1.32      (20.0 °C)

Description of key information

The density of the test item was determined according to the European Commission Regulation (EC) No. 440/2008, Method, A.3. Density of liquids and solids: Gas comparison pycnometer and according to the OECD test guideline, OECD 109 Density of liquids and solids.

Key value for chemical safety assessment

Relative density at 20C:
1.32

Additional information

The relative density of the test itemat ambient temperature (compared to water at 4 °C) was determined to be:


D4R = 1.32      (20.0 °C)