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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:
2 February 1997 to 19 March 1998
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Remarks:
Quantachrome MVP-2 gas comparison pycnometer.
Specific details on test material used for the study:
Name: Molyvan® 855 (Oil-Free)
Description: Dark brown paste
Storage conditions: Room temperature in the dark
Type:
density
Density:
1 092.3 kg/m³
Temp.:
21.5 °C
Remarks on result:
other: Mean Density

Calibration:

The pressure readings (P1 and P2) and the calculated volume for the calibration ball are shown in the following table:

P1 P2 Measured volume (cm3) Certified volume (cm3) Tolerance (cm3)
17.116 8.482 56.642 56.6 56.1 - 57.1
17.161 8.506 56.679 56.6 56.1 - 57.1

Sample:

The pressure readings, 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 17.117 8.879 64.838 1092.1
B 17.132 8.826 63.631 1092.5

Temperature = 21.5 +/- 0.5 deg. C

Mean density = 1092.3 kg/m3

Relative Density = 1.09

Conclusions:
The relative denisity of the test item is determined to be 1.09 at 21.5 +/- 0.5 deg. C.
Executive summary:

In an EU Method A.3 study, conducted according to GLP, the relative density of the test item is 1.09 at 21.5 +/- 0.5 deg. C. (SafePharm Laboratories Limited, 1998).

Description of key information

The relative density of the test item is determined to be 1.09 at 21.5 +/- 0.5 deg. C. 

Key value for chemical safety assessment

Relative density at 20C:
1.09

Additional information

In an EU Method A.3 study, conducted according to GLP, the relative density of the test item is 1.09 at 21.5 +/- 0.5 deg. C. (SafePharm Laboratories Limited, 1998).