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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:
other: This study has been performed according to OECD and CIPAC guidelines and according to GLP principles.
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 59
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
determination of fibre length and diameter distributions
Type of particle tested:
primary particle
Type of distribution:
mass based 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:
0.71 mm
Distribution:
54.02 %
No.:
#2
Size:
0.5 mm
Distribution:
73.33 %
No.:
#3
Size:
0.355 mm
Distribution:
87.92 %
No.:
#4
Size:
0.25 mm
Distribution:
93.5 %
No.:
#5
Size:
0.125 mm
Distribution:
97.03 %
No.:
#6
Size:
0.045 mm
Distribution:
99.98 %
No.:
#7
Size:
< 0.045 mm
Distribution:
99.98 %

The distribution pattern resulting after 5 minutes is summarized in Table 1, with the relevant graphical presentations.

 

TABLE 1 Algea Fert Solid K+: Particle Size Distribution at 5 minutes

 

Sieve

 

(mm)

Weight of the

residue

on the sieve

(g)

rx

Residue

on the sieve

(%)

Rx

Sum of the residue

(%)

0.710

27.24

54.02

54.02

0.500

9.74

19.31

73.33

0.355

7.36

14.59

87.92

0.250

2.81

5.57

93.50

0.125

1.78

3.53

97.03

0.045

1.49

2.95

99.98

<0.045

0.00

0.00

99.98

Conclusions:
From the experimental data obtained according to CIPAC method MT 59 and OECD guideline No. 110, it can be concluded that, after 5 minutes of shaking, over 93 % of the sample of Algea Fert Solid K+ presents a particle size higher than 0.250 mm and no sample of Algea Fert Solid K+ was found under the 0.045 mm sieve.

Description of key information

Additional information

After 5 minutes of shaking, over 93 % of the sample of Algea Fert Solid K+ presents a particle size higher than 0.250 mm and no sample of Algea Fert Solid K+ was found under the 0.045 mm sieve.