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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
Study period:
21 January 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: internal non GLP study
Qualifier:
no guideline followed
Principles of method if other than guideline:
The analyses were performed on a Microtrac S3500 laser diffraction granulometer in dry way.
The results are obtained after three measures on three different batches. They are expressed in μm in the whole report.
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
counted distribution
Key result
Percentile:
D10
Mean:
< 55 µm
St. dev.:
1.68
Key result
Percentile:
D50
Mean:
< 103 µm
St. dev.:
4.29
Key result
Percentile:
D90
Mean:
< 328 µm
St. dev.:
155.95
No.:
#1
Size:
< 55 µm
Distribution:
10 %
No.:
#2
Size:
< 103 µm
Distribution:
50 %
No.:
#3
Size:
< 328 µm
Distribution:
90 %
Conclusions:
Percentile Mean
D10 < 55 µm
D50 < 103 µm
D90 < 328 µm
Executive summary:

Goal

The goal of the report is to present the results of laser diffraction granulometry study on lipacide UG on three different batches.

Reminder

D(v, x)=y μm means that x % of the particles have a size lower than y μm

Measures

The analyses were performed on a Microtrac S3500 laser diffraction granulometer in dry way.

The results are obtained after three measures on three different batches. They are expressed in μm in the whole report.

CONCLUSION

D10 < 55 µm

D50 < 103 µm

D90 < 328 µm

Description of key information

The results of laser diffraction granulometry study of the test item as Percentile Mean :

D10 < 55 µm

D50 < 103 µm

D90 < 328 µm

Additional information