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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 reports
Qualifier:
according to guideline
Guideline:
other: as mentioned below
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:
150 µm
Remarks on result:
other: Mass median diameter
No.:
#1
Size:
150 µm
Distribution:
0.01 %
Remarks on result:
other: no other details mentioned
No.:
#2
Size:
106 µm
Distribution:
1.952 %
Remarks on result:
other: no other details mentioned
No.:
#3
Size:
75 µm
Distribution:
18.806 %
Remarks on result:
other: no other details mentioned
No.:
#4
Size:
53 µm
Distribution:
52.71 %
Remarks on result:
other: no other details mentioned
No.:
#5
Size:
25 µm
Distribution:
25.202 %
Remarks on result:
other: no other details mentioned
No.:
#6
Size:
10 µm
Distribution:
0.208 %
Remarks on result:
other: no other details mentioned
No.:
#7
Distribution:
1.11 %
Remarks on result:
other: Bottom pan

Observation Table:

Amount of test chemical weighed (g) = 10.002 g

Method run time (min) =10 min

Sieve sizes(in microns)

Weight of petridishes +

test item (g)

Test item quantity retained after sieving (g)

Percentage (%) of test item*

 150 microns

 50.958

0.001

0.0103

 106 microns

45.082

0.188

1.9522

75 microns 

48.418

1.811

18.8058

 53 microns

58.993

5.076

52.7102

 25 microns

47.878

 2.427

25.2024
 10 microns  44.876  0.02  0.2076
 Bottom pan  44.200  0.107

 1.11

 

Percentage of test chemical =   Test chemical retained on each sieve after sieving X 100

                                                    Original test chemical taken

 

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 bottom pan.
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 bottom pan.

Description of key information

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 bottom pan.

Additional information

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 bottom pan.