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Density

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Reference
Endpoint:
tap density
Remarks:
and pour density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 November 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
not specified
Type of method:
pour and tap (for solids)
Key result
Type:
tap density
Density:
684.9 kg/m³
Remarks on result:
other: no information on temperature available.
Key result
Type:
pour density
Density:
500 kg/m³
Remarks on result:
other: no information on temperature available.

Table 1: Summary of Density Results

 

Weight (g)

Volume (cm3)

kg/m3

Pour density

50

100

500

Tapped density

50

73

684.9

Conclusions:
Under the conditions of this study the pour density of the test material was determined to be 500 kg/m³ and the tapped density was determined to be 684.9 kg/m³.
Executive summary:

The pour and tapped density of the test material was determined in accordance with the standardised guideline OECD 109.

A known weight of test material was placed in a glass graduated measuring cylinder and its volume measured to determine the ‘pour density’. The cylinder was then raised and allowed to fall vertically through a distance of 25 mm on a rubber pad 50 times. The volume was measured again to determine tap density.

Under the conditions of this study the pour density of the test material was determined to be 500 kg/m³ and the tapped density was determined to be 684.9 kg/m³.

Description of key information

Under the conditions of this study the pour density of the test material was determined to be 500 kg/m³ and the tapped density was determined to be 684.9 kg/m³.

Key value for chemical safety assessment

Additional information

The pour and tapped density of the test material was determined in accordance with the standardised guideline OECD 109. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A known weight of test material was placed in a glass graduated measuring cylinder and its volume measured to determine the ‘pour density’. The cylinder was then raised and allowed to fall vertically through a distance of 25 mm on a rubber pad 50 times. The volume was measured again to determine tap density.

Under the conditions of this study the pour density of the test material was determined to be 500 kg/m³ and the tapped density was determined to be 684.9 kg/m³.

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