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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:
7 August 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive and done to a valid guideline.
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
no
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
5.21
Temp.:
21 °C

Table 2: Results from the calibration

 

The pressure readings (P1and P2) and the calculated volume for the calibration ball are shown in the following table:

 

Determination

P1

P2

Volume (cm3)

Certified Volume (cm3)

Tolerance (cm3)

A

16.983

8.407

56.444

56.6

± 0.5

B

17.122

8.475

56.426

56.6

± 0.5

 

Table 2: Tabulated results from the sample

 

The pressure reading, calculated volumes and density values obtained for the test material are shown in the following table:

 

Determination

P1

P2

Volume (cm3)

Density (kg/m3)

A

17.017

6.997

18.976

5.22 x 103

B

17.027

6.930

16.707

5.20 x 103

Temperature: 21.0 ± 0.5 °C

Mean density: 5.21 x 103 kg/m3

Relative density: 5.21

 

Conclusions:
The relative density of MnO2 was determined to be 5.21 at a temperature of 21 ± 0.5 °C
Executive summary:

The relative density of the test material was determined in a study which was conducted in accordance with the standardised guideline EU Method A.3.

Under the conditions of the study the relative density of the test material was determined to be 5.21 at 21 ± 0.5°C.

Description of key information

Relative density - 5.21 at 21 ± 0.5°C, EU Method A.3, Butler & O'Connor (2009)

Key value for chemical safety assessment

Relative density at 20C:
5.21

Additional information

The relative density of the test material was determined in a study which was conducted in accordance with the standardised guideline EU Method A.3.

Under the conditions of the study the relative density of the test material was determined to be 5.21 at 21 ± 0.5°C.