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Diss Factsheets

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
Qualifier:
according to guideline
Guideline:
other: ASTM E323-09 standard specification for perforated plate sieves for testing purposes
GLP compliance:
not specified
Type of method:
sieving
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
< 20 µm
Percentile:
D50
Mean:
< 20 µm
Remarks on result:
other: no information on standard deviation
Percentile:
other: D80
Mean:
31 µm
Remarks on result:
other: no information on standard deviation
Remarks on result:
other: see table below and figure attached

Particle size distribution of sample (see also figure attached)

Size

 

Retained

 

mesh

 mm

g

%

140

0.105

0.56

0.39

200

0.075

1.78

1.23

325

0.045

11.20

7.75

 

0.02

31.18

21.58

 

-0.02

99.78

69.05

Sum

 

144.50

100.00
Conclusions:
test done according to standard protocol, useful to assess the characteristic of the substance
Executive summary:

The particle size of the substance was determined by sieving.

The D50 of the substance is <20 µm, the D80 is 31 µm.

Description of key information

The D50 of the substance is <20 µm, the D80 is 31 µm

Additional information