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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:
22 Aug 2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Principles of method if other than guideline:
Particle size distrubution was performed by sieving the waxy flakes with filters of different mesh sizes and weighing the residual substance on each sieve.
GLP compliance:
no
Type of method:
sieving
Type of particle tested:
agglomerate
Type of distribution:
mass based distribution
Percentile:
other:
Remarks on result:
not determinable because of methodological limitations

Individual Results

See table below for individual results.

Mesh size

Remaining substance (g)

Result (%)

5 mm

3.11

3.08

3 mm

22.49

22.27

2 mm

42.08

41.66

1.5 mm

15.53

15.38

0.43 mm

14.43

14.29

0.2 mm

2.65

2.62

0.15 mm

0.24

0.24

0.1 mm

0.32

0.32

0.071 mm

0.15

0.15

TOTAL:

101.0

100.0

Final Results

The major part of the sample (82.39 wt%) has a particle size ≥ 1.5 mm. The range of the particle size is 0.071 mm to 5 mm. The waxy flakes contain a maximum of 0.15 wt% material with a diameter < 100 µm.  No particle is below a diameter of 71 µm.

Description of key information

Range of the particle size is 0.071 mm to 5 mm (sieve method).

Additional information