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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:
25.10.2017 - 10.11.2017
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 - Method A: Particle Size Distribution (effective hydrodynamic radius)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
43.6 µm
Geometric standard deviation:
0.64
Key result
Percentile:
D50
Mean:
43 µm
St. dev.:
0.64
Key result
Percentile:
D10
Mean:
7.6 µm
St. dev.:
0
Key result
Percentile:
D90
Mean:
169 µm
St. dev.:
2.3
Conclusions:
The test item N-(hydroxymethyl) stearamide has a median particle size D(50) = 43 µm and a MMAD of 43,6 µm.
Executive summary:

The test item N-(hydroxymethyl) stearamide has a median particle size D(50) = 43 µm, which was determined by laser diffraction measurement and a MMAD of 43,6 µm.

Description of key information

The particle size distribution is measured in an OECD 110 guideline study. The test item has a median particle size D(50) = 43 µm and a MMAD of 43.6 µm.

Additional information