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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Guideline compliant study
Qualifier:
according to guideline
Guideline:
other: DIN 66165 part I (basics) and II (performance of the study), ISO 3310 and ASTM E11.
GLP compliance:
no
Type of method:
sieving
Type of distribution:
other: diameter
Key result
Percentile:
D50
Mean:
792 µm
Remarks on result:
other: no standard deviation reported, MMAD
No.:
#1
Size:
<= 63 µm
Distribution:
1.9 %
No.:
#2
Size:
> 63 - <= 125 µm
Distribution:
4 %
No.:
#3
Size:
> 125 - <= 250 µm
Distribution:
9.8 %
No.:
#4
Size:
> 250 - <= 500 µm
Distribution:
19.2 %
No.:
#5
Size:
> 500 - <= 1 000 µm
Distribution:
25.9 %
No.:
#6
Size:
> 1 000 - <= 1 400 µm
Distribution:
14 %
No.:
#7
Size:
> 1 400 µm
Distribution:
25.2 %

X10 : 178 µm

X50 : 792 µm Median diameter MMAD

X90 : > 1400 µm

Executive summary:

In the non-GLP Klimisch 1 study from Bütfering (2012) the particle size distribution of Sodium di(1,3-dimethylbutyl) sulfosuccinate was determined using sieves from 63 to 1400 µm. The mass median aerodynamic diameter (MMAD) of the test item is calculated to be 792 µm.

This study is considered relevant for the risk assessment.

Description of key information

mass median aerodynamic diameter: 792 µm

Additional information

In the non-GLP Klimisch 1 study from Bütfering (2012) the particle size distribution of Sodium di(1,3-dimethylbutyl) sulfosuccinate was determined using sieves from 63 to 1400 µm. The mass median aerodynamic diameter (MMAD) of the test item is calculated to be 792 µm.

This study is considered relevant for the risk assessment.