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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
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Principles of method if other than guideline:
Method takes also OECD Guideline 110 into account.
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Batch 3033900250
Mass median aerodynamic diameter:
22.58 µm
Geometric standard deviation:
1.146
Percentile:
D90
Mean:
11.8 µm
St. dev.:
0.028
Percentile:
D50
Mean:
9.76 µm
St. dev.:
0.005
Percentile:
D10
Mean:
8.09 µm
St. dev.:
0.018
Conclusions:
The particle size of the test substance was determined with Laser Diffraction on 5 runs according to ISO 13320, CIPAC MT 187 and taking OECD guideline 110 into account. The following average results were obtained:

D10: 8.09 µm +- 0.0180 µm
D50: 9.76 µm +- 0.00524 µm
D90: 11.80 µm +- 0.0281 µm
MMAD : 22.58 µm +- 0.011 µm
Executive summary:

The particle size of the test substance was determined with Laser Diffraction on 5 runs according to ISO 13320, CIPAC MT 187 and taking OECD guideline 110 into account. The following average results were obtained:


D10: 8.09 µm +- 0.0180 µm
D50: 9.76 µm +- 0.00524 µm
D90: 11.80 µm +- 0.0281 µm
MMAD : 22.58 µm +- 0.011 µm

Description of key information

The particle size of the test substance was determined with Laser Diffraction on 5 runs according to ISO 13320, CIPAC MT 187 and taking OECD guideline 110 into account. The following average results were obtained:


D10: 8.09 µm +- 0.0180 µm
D50: 9.76 µm +- 0.00524 µm
D90: 11.80 µm +- 0.0281 µm
MMAD : 22.58 µm +- 0.011 µm

Additional information