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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:
15 April 2010- 06 July 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve Analysis"; CIPAC Handbook Volume F, 1995.
Deviations:
no
Principles of method if other than guideline:
Dry-sieving
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving
Type of distribution:
mass based distribution
Key result
Percentile:
D50
Mean:
> 2 000 µm
St. dev.:
0
No.:
#1
Size:
< 100 µm
Distribution:
< 0.1 %
No.:
#2
Size:
> 100 - < 180 µm
Distribution:
< 0.1 %
No.:
#3
Size:
> 180 - < 250 µm
Distribution:
< 0.1 %
No.:
#4
Size:
> 250 - < 500 µm
Distribution:
< 0.1 %
No.:
#5
Size:
> 500 - < 2 000 µm
Distribution:
0.7 %
No.:
#6
Size:
> 2 000 µm
Distribution:
99.3 %

In the receiver pan (i.e. the fraction < 100 µm), <0.1% of test material was collected.

Conclusions:
The particle size distribution of CN-Nitcal was determined using the CIPAC MT 59 dry-sieve method. The fraction of test material < 100 µm was <0.1%. The fraction 500-2000 µm and > 2000 µm were determined to be 0.7% and 99.3%, resp. MMAD is > 2000 µm.

Description of key information

The particle size distribution of CN-Nitcal was determined using the CIPAC MT 59 dry-sieve method.  The fraction of test materiall < 100 µm was <0.1%.  The fraction 500-2000 µm and > 2000 µm were determined to be 0.7% and 99.3%, resp.  MMAD is > 2000 µm.

Additional information