Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-10-25 - 2018-04-19
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
2002
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
air comparison pycnometer (for solids)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Test item: Black DB
Appearance: black powder

Results and discussion

Density
Key result
Type:
relative density
Density:
1.661 other:
Temp.:
20 °C

Any other information on results incl. tables

Relative Density

Two tests with different amounts of the test item were performed to determine the relative density D420 at a temperature of 20 °C ± 0.01 °C. Table 1 compiles the results.

Table 1:    Results of the measurement of the density of the test item

Test No.

Temperature [°C]

Amount of test item [g]

Average sample volume [cm³]

Density [g/cm³]*

1

20

5.79

3.49158

1.65828

2

20

5.61

3.37420

1.66262

* The pressurizing-expansion cycles are performed until 5 subsequent volume measurements have a relative standard deviation (RSD) of ≤ 0.2 %.

The mean density of the test item at 20 °C is 1.66045 g/cm³. The relative density D420 is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).

The relative density is          D420=1.6605.

Applicant's summary and conclusion

Conclusions:
According to OECD Test Guidelines 109 (2012), Regulation EC No. 440/2008 Method A.3. and EPA OCSPP Test Guideline 830.7300 (2002), the relative density D420 of the test item Black DB at 20 °C ± 0.01 °C (compared to water at 4 °C) is 1.6605.
Executive summary:

Summary

According to OECD Test Guideline 109 (2012), Regulation EC No. 440/2008 Method A.3. and EPA OCSPP Test Guideline 830.7300 (2002), the relative density D420of the test item Black DB at 20 °C ± 0.01 °C (compared to water at 4 °C) is D420 = 1.6605.