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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
Data is from experimental study report
Qualifier:
according to guideline
Guideline:
other: granulometric analysis with rotap sieve shaker.
Principles of method if other than guideline:
The particle size distribution of test chemical was determined by Granulometric analysis with Rotap sieve shaker.
GLP compliance:
no
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution
Key result
Percentile:
D50
Mean:
> 25 - < 150 µm
Remarks on result:
other: Mass median diameter
No.:
#1
Size:
150 µm
Distribution:
11.594 %
No.:
#2
Size:
106 µm
Distribution:
28.146 %
No.:
#3
Size:
75 µm
Distribution:
23.658 %
No.:
#4
Size:
53 µm
Distribution:
28.944 %
No.:
#5
Size:
25 µm
Distribution:
7.658 %
No.:
#6
Size:
10 µm
Distribution:
0 %

OBSERVATION TABLE:

Amount of sample weighed (g) =10.005 gm

Method run time (minutes) =10 min

Sieve sizes(in microns)

Weight of container + test substance (g)

Sample quantity retained after sieving (g)

Percentage (%) of sample*

150 microns

45.862

1.134

11.5939

106 microns

46.786

2.753

28.1464

75 microns

56.361

2.314

23.6581

53 microns

50.422

2.831

28.9438

25 microns

45.796

0.749

7.6577

10 microns

-

0

0.0000

 Bottom pan    0  0.0000

Calculation:

The particle size distribution of the test chemical is calculated using the formula:

Total amount of test chemical lost after sieving = (Original test chemical taken - Total test chemical retained after sieving)

*Percentage of test chemical =test chemical retained after sieving    X 100

                                            total test chemical retained after sieving

Sieve sizes (in microns)

Percentage (%) of test chemical*

150 microns

11.5939

106 microns

28.1464

75 microns

23.6581

53 microns

28.9438

25 microns

7.6577

10 microns

0.0000

Bottom Pan

0.0000

Conclusions:
The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
Executive summary:

The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.

Description of key information

On the basis of the available data from study report, the particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.

Additional information

On the basis of the available data from study report, the particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.