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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:
from 2017-02-01 to 2017-04-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Deviations:
no
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Test material information:
Composition 1
Specific details on test material used for the study:
Batch No.: 0458507022_R_JM
Purity: 99.8 %
Key result
Percentile:
D10
Mean:
41.7 µm
St. dev.:
0.4
Key result
Percentile:
D50
Mean:
215.2 µm
St. dev.:
0.5
Key result
Percentile:
D90
Mean:
502.5 µm
St. dev.:
5.7

Two test series of 3 measurements each were performed with the fine fraction of the test item.

D10 [µm]

D50 [µm]

D90 [µm]

Test series 1

Test series 2

42.0

41.1

215.6

214.9

506.5

498.4

Average

41.7

215.2

502.5

Conclusions:
The test item has a median particle size D50 = 215 µm, which was determined by laser diffraction measurement.
Executive summary:

A study was conducted according to OECD TG 110, OPPTS 830.7520 and ISO 13320 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series of 3 measurements each were performed with the test item. The test item has a median particle size D50 = 215 µm, which was determined by laser diffraction measurement.

Description of key information

The test item has a median particle size D50 = 215 µm, which was determined by laser diffraction measurement.

Additional information

A study was conducted according to OECD TG 110, OPPTS 830.7520 and ISO 13320 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series of 3 measurements each were performed with the test item. The test item has a median particle size D50 = 215 µm, which was determined by laser diffraction measurement.