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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:
Experimental test result following standard method.
Qualifier:
according to
Guideline:
other: refer below
Principles of method if other than guideline:
The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The principle includes measurement of relative amounts of particles present, sorted according to size
GLP compliance:
no
Type of method:
sieving
Type of distribution:
counted distribution
Key result
Percentile:
D50
Mean:
25 - 150 µm
Remarks on result:
other: other details not available
No.:
#1
Size:
150 µm
Distribution:
85.071 %
No.:
#2
Size:
106 µm
Distribution:
8.949 %
No.:
#3
Size:
75 µm
Distribution:
5.119 %
No.:
#4
Size:
53 µm
Distribution:
0.38 %
No.:
#5
Size:
25 µm
Distribution:
0.48 %

Table 1: Observation Table

Amount of test item weighed (g) =10.022 g        

Method run time(minute)=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

52.439

8.508

85.0714

106 microns

54.845

0.895

8.9491

75 microns

47.105

0.512

5.1194

53 microns

44.473

0.038

0.3799

25 microns

44.561

0.048

0.4799

10 microns

-

0

0.0000

Bottom Pan

-

0

0.0000

 

*Percentage of test item =   Test item retained after sieving X 100

                                                   Total test item retained after sieving

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

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

Additional information

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