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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:
September to October 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
equivalent or similar to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
First edition 2009-10-01
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
80.3 µm
Key result
Percentile:
D90
Mean:
165.2 µm
Remarks on result:
other: Standard deviation not measured
Key result
Percentile:
D10
Mean:
32.7 µm
Remarks on result:
other: standard deviation not measured

Extended uncertainty of determination of the median is 10%.

Extended uncertainty was calculated by using coefficient 2 (for normal distribution agrees with probability of coverage about 95%).

Conclusions:
The results of determination of particle size distibution of the test substance are:
Median: 80.3 µm
Diameter on cumulative 90% (d90): 165.2 µm
Diameter on cumulative 10% (d91): 32.7 µm

Description of key information

The results of determination of particle size distibution of the test substance are:

Median: 80.3 µm

Diameter on cumultive 90% (d90): 165.2 µm

Diameter on cumultive 10% (d91): 32.7 µm

Additional information