Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 16 May 2008 and 13 June 2008.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP and in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not effect the quality of the relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
The work described was performed in compliance with UK GLP standards (Schedule 1, Good Laboratory Practice Regulations 1999 (SI 1999/3106 as amended by SI 2004/0994)).
Type of method:
pycnometer method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Density
Type:
relative density
Density:
1 510 kg/m³
Temp.:
21 °C

Any other information on results incl. tables

  Results

   Calibration

The pressure readings (P1 and 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

17.449

8.641

56.514

56.6

± 0.5

B

17.494

8.664

56.529

56.6

± 0.5

 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

17.198

6.841

11.526

1.51 x 103

B

17.179

6.835

11.578

1.50 x 103

Temperature:                21.0 ± 0.5ºC
Mean density:               1.51 x 103 kg/m3
Relative density:            1.51

Conclusion

The relative density of the test material has been determined to be 1.51 at 21.0 ± 0.5°C.


Applicant's summary and conclusion

Conclusions:
The relative density of the test material has been determined to be 1.51 at 21.0 ± 0.5°C.
Executive summary:

The relative density of the test material has been determined to be 1.51 at 21.0 ± 0.5°C for substance Na-Na in project number 1307 -0436, using a gas comparison pycnometer, Method A3 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).