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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
Study period:
2012-05-11 to 2012-05-11
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study is regarded as reliable without restrictions because it was conducted in compliance with GLP regulation and is scientifically well documented and complete in any part.
Qualifier:
according to
Guideline:
other: CIPAC MT 170 Dry Sieve Analysis of Water Dispersible Granules, CIPAC Handbook Volume F, 1995
Deviations:
no
Principles of method if other than guideline:
Sieve analysis consists of the quantitative separation of water dispersible granules into fractions of different particle size ranges by use of machine sieving method.
GLP compliance:
yes (incl. certificate)
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution
No.:
#1
Size:
125 µm
Distribution:
0.2 %
No.:
#2
Size:
250 µm
Distribution:
3.1 %
No.:
#3
Size:
500 µm
Distribution:
11.8 %
No.:
#4
Size:
1 000 µm
Distribution:
80.8 %
No.:
#5
Size:
2 000 µm
Distribution:
4 %

The particle size distribution of the CCDFB-90 was found to be [500 μm, 2000 μm].

Conclusions:
1,1'-(1,1,2,2-tetramethylethylene)dibenzene showed a particle size distribution of [500 µm, 2000 µm]. None of the particles were smaller than 125 µm.
Executive summary:

The particle size distribution of 1,1'-(1,1,2,2-tetramethylethylene)dibenzene was assessed according to the CIPAC MT 170 guideline. Using the dry sieve analysis method the particle size distribution of the test substance was determined to be [500 µm, 2000 µm]. None of the particles were smaller than 125 µm.

Description of key information

1,1'-(1,1,2,2-tetramethylethylene)dibenzene showed a particle size distribution of [500 µm, 2000 µm].

Additional information

The particle size distribution of 1,1'-(1,1,2,2-tetramethylethylene)dibenzene was assessed according to the CIPAC MT 170 guideline. Using the dry sieve analysis method the particle size distribution of the test substance was determined to be [500 µm, 2000 µm]. None of the particles were smaller than 125 µm.