Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 February 2008
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 affcet the quality of relevant results.

Data source

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

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: 21/08/07 Date of signature: 15/10/07
Type of method:
air comparison pycnometer (for solids)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
Sponsor's identification : VCBK3810
Description : black powder
Lot number : N006746
Date received : 25 February 2008
Storage conditions : room temperature, in the dark

Results and discussion

Density
Type:
relative density
Density:
1.48
Temp.:
21 °C

Any other information on results incl. tables

Results:

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

17.570

8.699

56.474

56.6

± 0.5

B

17.809

8.818

56.488

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

18.104

7.664

25.328

1.4762 x 103

B

17.665

7.708

31.734

1.4871 x 103

Temperature:               21.0 ± 0.5ºC
Mean density:              1.48 x 10
3 kg/m3
Relative density:           1.48

Applicant's summary and conclusion

Conclusions:
The relative density of the test material has been determined to be 1.48 at 21.0 ± 0.5°C.
Executive summary:

Relative Density: 1.48 at 21.0 ± 0.5°C, using a gas comparison pycnometer, Method A3 of Commission Directive 92/69/EEC.