Registration Dossier
Registration Dossier
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EC number: 482-110-2 | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- bulk density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 26, 2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes
- Remarks:
- OECD GLP
- Type of method:
- pycnometer method
- Key result
- Type:
- bulk density
- Density:
- >= 410 - <= 450 g/L
- Temp.:
- 23 °C
- Conclusions:
- Under the conditions of this study the observed bulk density of the test material was 0.43 ± 0.02 g/mL at 23 °C.
- Executive summary:
The bulk density of the test material was investigated in accordance with the standardised guidelines OECD 109, under GLP conditions, using the pycnometer method.
A clean 10-mL volumetric cylinder was weighed (2 decimal places). The test material (approx. 5 mL) was placed in the cylinder and ‘settled’ by dropping the cylinder on the bench from a height of approx. 2 cm, 10 times. The test material volume was recorded. The cylinder was weighed and the weight of the test material was determined.
Under the conditions of this study the observed bulk density of the test material was 0.43 ± 0.02 g/mL at 23 °C.
Reference
Bulk density results
Parameter |
Value |
Average |
Dev |
%RD |
|
Rep 1 |
Rep 2 |
||||
Weight cylinder (g) |
38.475 |
36.86 |
|||
Weight cylinder + sample (g) |
39.99 |
38.56 |
|||
Weight sample (g) |
1.51 |
1.70 |
|||
Volume sample (mL) |
3.65 |
3.80 |
|||
Bulk density (g/mL) |
0.41 |
0.45 |
0.43 |
0.02 |
3.60% |
Description of key information
Under the conditions of this study the observed bulk density of the test material was 0.43 ± 0.02 g/mL at 23 °C.
Key value for chemical safety assessment
Additional information
The bulk density of the test material was investigated in accordance with the standardised guidelines OECD 109, under GLP conditions, using the pycnometer method. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
A clean 10-mL volumetric cylinder was weighed (2 decimal places). The test material (approx. 5 mL) was placed in the cylinder and ‘settled’ by dropping the cylinder on the bench from a height of approx. 2 cm, 10 times. The test material volume was recorded. The cylinder was weighed and the weight of the test material was determined.
Under the conditions of this study the observed bulk density of the test material was 0.43 ± 0.02 g/mL at 23 °C.
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