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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:
June 29, 2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: ISO 13320:2009 "Particle size analysis – Laser diffraction methods"
Remarks:
Particle size analysis by laser diffraction.
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
ISO 13320:2009 “Particle size analysis – Laser diffraction methods”
Deviations:
no
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
other: Laser diffraction in water as dispersion liquid.
Mass median aerodynamic diameter:
2.6 µm
Key result
Percentile:
D50
Mean:
2.6 µm
St. dev.:
0.15
Remarks on result:
other:
Remarks:
According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled.
Key result
Percentile:
D10
Mean:
1.03 µm
St. dev.:
0.06
Remarks on result:
other:
Remarks:
According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled.
Key result
Percentile:
D90
Mean:
4.75 µm
St. dev.:
0.28
Remarks on result:
other:
Remarks:
According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled.

Mean diameters (distribution type: volume) applying Fraunhofer approximation:

D (v, 0.1) = 1.03 μm

D (v, 0.5) = 2.60 μm

D (v, 0.9) = 4.75 μm

Conclusions:
The particle size distribution of MoSi2 was determined by laser diffraction in water as dispersion liquid.
Mean diameters (distribution type: volume) applying Fraunhofer approximation:
D (v, 0.1) = 1.03 μm
D (v, 0.5) = 2.60 μm
D (v, 0.9) = 4.75 μm
Executive summary:

The particle size distribution of MoSi2 was determined by laser diffraction in water as dispersion liquid.

Mean diameters (distribution type: volume) applying Fraunhofer approximation:

D (v, 0.1) = 1.03 μm

D (v, 0.5) = 2.60 μm

D (v, 0.9) = 4.75 μm

Description of key information

The particle size distribution of MoSi2 was determined by laser diffraction in water as dispersion liquid.

Mean diameters (distribution type: volume) applying Fraunhofer approximation:

D (v, 0.1) = 1.03 μm

D (v, 0.5) = 2.60 μm

D (v, 0.9) = 4.75 μm

Additional information