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EC number: 945-888-9 | CAS number: -
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-02-23
- 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
- Percentile:
- D10
- Mean:
- 53.24 µm
- St. dev.:
- 2.67
- 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.
- Key result
- Percentile:
- D50
- Mean:
- 72.56 µm
- St. dev.:
- 2.18
- 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:
- 102.72 µm
- St. dev.:
- 5.16
- 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 and number) of Zirconium oxide, hafnium and ytterbium doped applying Fraunhofer approximation:
D (v, 0.1) = 53.24 μm;
D (v, 0.5) = 72.56 μm;
D (v, 0.9) = 102.72 μm. - Executive summary:
The particle size distribution of the test item Zirconium oxide, hafnium and ytterbium doped was investigated according to ISO 13320:2009. The mean diameters (distribution type: volume) applying Fraunhofer approximation are:
D (v, 0.1) = 53.24 μm;
D (v, 0.5) = 72.56 μm;
D (v, 0.9) = 102.72 μm.
Reference
Description of key information
The particle size distribution of the test item Zirconium oxide, hafnium and ytterbium doped was investigated according to ISO 13320:2009. The mean diameters (distribution type: volume) applying Fraunhofer approximation are:
D (v, 0.1) = 53.24 μm;
D (v, 0.5) = 72.56 μm;
D (v, 0.9) = 102.72 μm.
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