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Physical & Chemical properties

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:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: see remarks
Remarks:
sieving followed my microscopic evaluation
Type of particle tested:
primary particle
Type of distribution:
mass based distribution
Mass median aerodynamic diameter:
3.2 µm
No.:
#1
Size:
< 4 µm
Distribution:
<= 6.82 %
Remarks on result:
other: spherical volume
No.:
#2
Size:
>= 4 - < 10 µm
Distribution:
<= 50.74 %
Remarks on result:
other: spherical volume
No.:
#3
Size:
>= 10 - < 100 µm
Distribution:
<= 42.44 %
Remarks on result:
other: spherical volume
No.:
#4
Size:
> 100 µm
Distribution:
<= 0 %
Remarks on result:
other: spherical volume

  Accounting based on the total sample weight
  Particle size (µm)   Spherical volume (%)
 Mass fraction  >100 92.51 
Sieve fraction   >100 0.00 
 Total (>100 µm)   92.51 
 Sieve fraction 10 -100 (inhalable)  3.18 
 Sieve fraction 4 -10 (thoracic)  3.80 
 Sieve fraction <4 (respirable)  0.51 
Conclusions:
The MMAD (Mass Median Aerodynamic Diameter < 100μm) has a value of 3.20 μm as spherical particles.
Executive summary:

The MMAD (Mass Median Aerodynamic Diameter < 100μm) has a value of 3.20 μm as spherical particles.

Description of key information

The MMAD (Mass Median Aerodynamic Diameter < 100μm) has a value of 3.20 μm as spherical particles.

Additional information