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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
ISO 13320:2009, CIPAC MT 187, OECD 110.
Principles of method if other than guideline:
Laser diffraction using a Mastersizer 2000 according to ISO13320
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Key result
Percentile:
D10
Mean:
ca. 4.976 µm
St. dev.:
0.1
Key result
Percentile:
D50
Mean:
ca. 12.524 µm
St. dev.:
0.1
Key result
Percentile:
D90
Mean:
ca. 58.899 µm
St. dev.:
0.1

The particle size was analysed over the range 0.02 μm to 2000 μm. The results of the formal analysis are presented in Table 9:1.

Conclusions:
Volume weighted Mean is 26.130 um. The Median is 12.524 um.
Executive summary:

Particle size analysis was performed using a Mastersizer 2000 instrument. Volume weighted Mean is 26.130 um. The Median is 12.524 um. 80% of the particles were greater than 5 um and less than 58 um.

Description of key information

 Volume weighted Mean is 26.130 um. The Median is 12.524 um.

Additional information

Volume weighted Mean is 26.130 um. The Median is 12.524 um.