Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 26 October 2009 and 19 November 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 the relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
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: 19-08-2008 Date of Signature: 04-09-2009
Type of method:
pycnometer method
Remarks:
The determination was carried out using a gas comparison pycnometer,

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Sponsor's identification: DMH
Description: white crystalline solid
Batch number: N5439431
Date received: 24 February 2006
Storage conditions: room temperature in the dark

Results and discussion

Density
Type:
relative density
Density:
1.26 other: The relative density of the test material has been determined to be 1.26 at 20.2 ± 0.5°C.
Temp.:
20 °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:

Table 6.2

Determination

P1

P2

Volume (cm3)

Certified Volume (cm3)

Tolerance

(cm3)

A

17.473

8.674

57.0

56.6

± 0.5

B

17.537

8.702

56.9

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 6.3

Determination

P1

P2

Volume (cm3)

Density

(kg/m3)

A

17.724

7.964

37.8

1.26 x 103

B

17.867

8.050

38.3

1.26 x 103

Temperature:             20.2 ± 0.5ºC
Mean density:
                       1.26 x 103 kg/m3
Relative density:
                   1.26

Applicant's summary and conclusion

Conclusions:
The relative density of the test material has been determined to be 1.26 at 20.2 ± 0.5°C.
Executive summary:

Method

The determination was carried out using a gas comparison pycnometer, Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Procedure

Testing was carried out using a Quantachrome MVP-2 gas comparison pycnometer.

Conclusion

The relative density of the test material has been determined to be 1.26 at 20.2 ± 0.5°C.