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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve Analysis";
CIPAC Handbook Volume F, 1995.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve Analysis"; CIPAC Handbook Volume F, 1995.
Principles of method if other than guideline:
Test sieves Analytical sieves with a diameter of 200 mm (Retsch GmbH, Haan,
Germany and Endecotts, London, United Kingdom). The sieves were
equipped with seperate receiver pan and lid. Sieve sizes: 100 μm, 180
μm, 250 μm, 500 μm and 2000 μm, nested from bottom to top on the
receiver pan.
Analytical balance Sensitive to 0.1 g (type PM 6100; Mettler-Toledo B.V., Tiel, The
Netherlands)
Sieving apparatus Sieve shaker INCLYNO 1 (Capco Test Equipment Ltd., Suffolk,
United Kingdom)
GLP compliance:
yes (incl. certificate)
Type of method:
cascade impaction
Type of particle tested:
primary particle
Type of distribution:
mass based distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: flakes

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 100 µm
Distribution:
< 0.1 %
No.:
#2
Size:
> 100 - < 180 µm
Distribution:
ca. 1.4 %
No.:
#3
Size:
> 180 - < 250 µm
Distribution:
ca. 0.7 %
No.:
#4
Size:
> 250 - < 500 µm
Distribution:
ca. 1.8 %
No.:
#5
Size:
> 500 - < 2 000 µm
Distribution:
ca. 92.6 %
No.:
#6
Size:
> 2 000 µm
Distribution:
ca. 3.5 %

Any other information on results incl. tables

The amount of material retained on the sieves and in the receiver pan was weighed to the nearest

0.1 g, and expressed as percentages of the sample to the nearest 0.1%.

Applicant's summary and conclusion

Conclusions:
Particule size distribution of 852 imide : 92.6% between 500 to 2000µm