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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
Study period:
2016-11-24 – 2016-11-24
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
data from experimental reports using standard method of analysis
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The particle size distribution of test test item 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:
counted distribution
Key result
Percentile:
D50
Remarks on result:
other: Mass median diameter
No.:
#1
Size:
150 µm
Distribution:
23.94 %
Remarks on result:
other: no other details mentioned
No.:
#2
Size:
106 µm
Distribution:
8.65 %
Remarks on result:
other: no other details mentioned
No.:
#3
Size:
75 µm
Distribution:
14.76 %
Remarks on result:
other: no other details mentioned
No.:
#4
Size:
53 µm
Distribution:
46.51 %
Remarks on result:
other: no other details mentioned
No.:
#5
Size:
25 µm
Distribution:
1.88 %
Remarks on result:
other: no other details mentioned

Table 1: Observation Table

Amount of test item weighed (g) =10.007 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  50.512 2.669  23.94
 106 microns   45.523 0.820  8.65
75 microns  52.186 1.399  14.76
 53 microns 48.754 4.407  46.51
 25 microns  37.585 0.179  1.88a

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

                                                   Total amount of test item retained on sieve

Conclusions:
The particle size distribution of test 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 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 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

The particle size distribution of test 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.