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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)
Reason / purpose:
reference to same study
Principles of method if other than guideline:
Sieving and light scattering. Calculated the percentage of particles that were less than 105 µm. The particles less than 105 µm were analysed for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer.
GLP compliance:
yes
Type of method:
sieving
Type of distribution:
volumetric distribution
No.:
#1
Size:
< 105 µm
Distribution:
0.78 %

Granulometry: 0.78% < 105 µm

< 0.2% of total weight < 13.56 µm

 

Particle Size Distribution of Particles less than 105 µm  

Volume %

Particle Diameter µm Greater Than

10

21.23

25

19.63

50

17.00

75

13.56

90

7.148

Conclusions:
0.78% < l05 µm
Executive summary:

Determination of granulometry: Accurately weighed a l05 µm sieve and an empty pan. Accurately weighed approximately 5 g of test substance into the sieve. Place sieve and pan on a sieve shaker and shook for 5 minutes. Re-weighed the sieve and the pan. Calculated the percentage of particles that were less than l05 µm. The particles less than l05 µm were analysed for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer.

Granulometry: 0.78% < l05 µm

Description of key information

Sieving

Additional information

0.78%  < 105 µm

< 0.2% of total weight < 13.56 µm

Distribution: 10% >21.23 µm, 25% >19.63 µm, 50% >17.00 µm, 75% >13.56 µm, 90% >7.148 µm