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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:
2016-06-29
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
24.59 µm
Percentile:
D10
Mean:
14.52 µm
St. dev.:
0.7
Remarks on result:
other: "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."
Percentile:
D50
Mean:
24.59 µm
St. dev.:
0.7
Remarks on result:
other: "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."
Percentile:
D90
Mean:
39.54 µm
St. dev.:
2
Remarks on result:
other: "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."
Conclusions:
Mean diameters (distribution type: volume) applying Fraunhofer approximation:
D (v, 0.1) = 14.52 μm
D (v, 0.5) = 24.59 μm
D (v, 0.9) = 39.54 μm
Executive summary:

The particle size distribution of tungsten hexachloride was determined by laser diffraction in water as dispersion liquid according to ISO 13320.

The following mean diameters (distribution type: volume) applying Fraunhofer approximation were determined:

D (v, 0.1) = 14.52 μm

D (v, 0.5) = 24.59 μm

D (v, 0.9) = 39.54 μm

Description of key information

The particle size distribution of tungsten hexachloride was determined by laser diffraction in water as dispersion liquid according to ISO 13320.

The following mean diameters (distribution type: volume) applying Fraunhofer approximation were determined:

D (v, 0.1) = 14.52 μm

D (v, 0.5) = 24.59 μm

D (v, 0.9) = 39.54 μm

Additional information

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