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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:
2011-08-26 - 2012-01-17
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
sedimentation (gravitational settling)
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Key result
Percentile:
D10
Mean:
10 µm
Remarks on result:
other: St. dev. not determined
Key result
Percentile:
D50
Mean:
40 µm
Remarks on result:
other: St. dev. not determined
Key result
Percentile:
D90
Mean:
140 µm
Remarks on result:
other: St. dev. not determined
Conclusions:
When considering the total test item (including the non-measurable part which is bigger than the upper critical Stokes diameter 200 µm), the following values apply:

D10 10µm

D50 40 µm

D90 140 µm
Executive summary:

The result of the sieve pre-test showed good corresponding to the result of determination of the particle size. In the microscopical observation, granulated powder was observed. All measured values in the mixture of sunflower oil: kerosene 1:2 show good reproducibility, giving deviations of less than 20 % for each fraction when comparing the three main studies. In all three experiments, the particles were nearly complete retrieved when determining the 100% value. It can be considered that most of the particles of the test item MELON 1,3,5-Triazine-2,4,6-triamine, deammonated are smaller than 200.91 µm.

When considering the total test item (including the non-measurable part which is bigger than the upper critical Stokes diameter 200 µm), the following values apply:

D1010µm

D5040 µm

D90140 µm

Description of key information

When considering the total test item (including the non-measurable part which is bigger than the upper critical Stokes diameter 200 µm), the following values were estimated:

D1010µm

D5040 µm

D90140 µm

Additional information