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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:
April 18th, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 3.2.1
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.26 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
1.26 other: No unit
Temp.:
20 °C

As the difference between results was less than 0.03 g/ml; two trials were enough.

Table 1. Results of density determination 

Test No.

Mass of empty pycnometer

mo

Mass of pycnometer with water,

m1

Mass of pycnometer with tested material

m3

Density

[g]

[g]

[g]

[g/ml

1

20.5049

45.6623

52.2769

1.2603

2

20.5051

45.6621

52.2775

1.2604

 

Average

1.260

Conclusions:
The relative density of the test item was found to be 1.260.
Executive summary:

The density of the test item was determined in accordance with EU method A3 (CIPAC MT 3.2.1), under GLP conditions, using the Gay-Lussac pycnometer in accordance based in measuring the mass of the substance occupying a unit volume at 20˚C. The average measured absolute density at 20°C was 1.260 g/cm³ , and the average calculated relative density at 20°C temperature was 1.260.

Description of key information

Key study. Study according to EU Method A.3 / CIPAC MT 3.2.1 (GLP study). The relative density of the test item is 1.260.

Key value for chemical safety assessment

Relative density at 20C:
1.26

Additional information

The density determination of the test item was determined in accordance with EU method A3 (CIPAC MT 3.2.1), under GLP conditions, using the Gay-Lussac pycnometer in accordance based in measuring the mass of the substance occupying a unit volume at 20˚C. The average measured absolute density at 20°C was 1.260 g/cm³ , and the average calculated relative density at 20°C temperature was 1.260.