Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08 January 2009 to 07 February 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report Date:
2009

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Date of inspection: 19 August 2008; Date of signature: 04 March 2009
Type of method:
pycnometer method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Sponsor's identification : H-CB sodium salt
Description : blue solid
Purity : 94.8%
Lot number : MB-2
Date received : 04 December 2008
Storage conditions : room temperature in the dark

Results and discussion

Density
Type:
relative density
Density:
1.74
Temp.:
20 °C

Any other information on results incl. tables

Calibration

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

 

Table 1

 

Determination

P1

P2

Volume (cm3)

Certified Volume (cm3)

Tolerance (cm3)

A

17.031

8.430

56.4

56.6

+/- 0.5

B

17.535

8.679

56.4

56.6

+/- 0.5

 

Sample

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

 

Table 2

 

Determination

P1

P2

Volume (cm3)

Density (kg/m3)

A

17.521

7.499

27.7

1.74 x 103

B

17.113

7.119

21.5

1.74 x 103

 

Temperature:              20.0 +/- 0.5oC

Mean density:             1.74 x 103kg/m3

Relative density:         1.74

Applicant's summary and conclusion

Conclusions:
The relative density of the test material has been determined to be 1.74 at 20.0 +/- 0.5 Deg C
Executive summary:

1.74 at 20.0 +/- 0.5 Deg C, using a gas comparison pycnometer, result was obtained according to Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.