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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
Study period:
June, 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: the study was performed by certificated laboraoty
Qualifier:
according to
Guideline:
other: PN-EN 1235:1999/A1:2004
GLP compliance:
no
Type of method:
sieving
Type of distribution:
volumetric distribution
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
No.:
#1
Size:
> 0.8 - <= 1 mm
Distribution:
0 %
No.:
#2
Size:
> 0.7 - <= 0.8 mm
Distribution:
12 %
No.:
#3
Size:
> 0.5 - <= 0.7 mm
Distribution:
50 %
No.:
#4
Size:
> 0.4 - <= 0.5 mm
Distribution:
21 %
No.:
#5
Size:
> 0.3 - <= 0.4 mm
Distribution:
9 %
No.:
#6
Size:
> 0.2 - <= 0.3 mm
Distribution:
4 %
No.:
#7
Size:
> 0.1 - <= 0.2 mm
Distribution:
4 %

Sieve analyses [mm]

 

1-0,8

0,8-0,7

0,7-0,5

0,5-0,4

0,4-0,3

0,3-0,2

0,2-0,1

<0,1mm

[%]

-

12

49

22

9

4

4

-

[%]

-

11

50

22

9

3

5

-

[%]

-

13

51

19

9

5

3

-

Conclusions:
Granules of the test item are not smaller than 0.1 mm. The majority of granules are 0.2 - 1 mm (96 %).
Executive summary:

The particle size distribution of the test substance was determined according to PN-EN 1235:1999/A1:2004.

The dry sieving test of FeIDHA was performed as following: about 100 g of the tested material was material was weighted to the nearest 0,01 g and transferred quantitatively to a tarred clean, dry of 1 mm aperture sieve. It was the upper sieve of a set of 1 mm, 0,8 mm, 0,7 mm, 0,5 mm, 0,4 mm, 0,3 mm, 0,2 mm, 0,1 mm sieves. The sieving was carried out using apparatus at an amplitude of250 revolutions per minute during 10 minutes.After the completion of the sieving process the sieves were checked for the proper fractions.

Granules of the test item are not smaller than 0.1 mm. The majority of granules are 0.2 - 1 mm (96 %).

Description of key information

Granules of the test item are not smaller than 0.1 mm. The majority of granules are

0.2 - 1 mm (96 %).

Additional information

After the completion of the sieving process according to PN-EN 1235:1999/A1:2004, the particle size distribution at different passages was determined. The majority of granules are 0.32 - 0.500 mm (96%).