Registration Dossier
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EC number: 235-125-1 | CAS number: 12070-14-3
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:
- 2016-06-29 to 2016-06-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- ISO 13320:2009 “Particle size analysis – Laser diffraction methods” - Laser diffraction in water as dispersion liquid.
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 4.88 µm
- Percentile:
- D10
- Mean:
- 1.7 µm
- St. dev.:
- 0.17
- 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:
- 4.88 µm
- St. dev.:
- 0.29
- 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:
- 9.01 µm
- St. dev.:
- 0.9
- 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:
- The mean value of particle size of zirconium carbide is 4.88 μm.
- Executive summary:
The granulometric properties of zirconium carbide were analysed by laser diffraction method according to ISO 13320-2009. Therefore, a sample of the test substance zirconium carbide was dispersed in water and Fraunhofer approximation was used for calculation of particle size distribution (PSD). The results of the PSD for zicronium carbide was as follows:
D (v, 0.1) = 1.70 μm
D (v, 0.5) = 4.88 μm
D (v, 0.9) = 9.01 μm
Reference
Description of key information
The median value of particle size of zirconium carbide was determined to be 4.88 µm.
Additional information
The granulometric properties of zirconium carbide were analysed by laser diffraction method according to ISO 13320-2009. Therefore, a sample of the test substance zirconium carbide was dispersed in water and Fraunhofer approximation was used for calculation of particle size distribution (PSD). The results of the PSD for zicronium carbide was as follows:
D (v, 0.1) = 1.70 μm
D (v, 0.5) = 4.88 μm
D (v, 0.9) = 9.01 μm
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