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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 January 1997
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
GLP compliance:
yes
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
other: Multistage impactor (0.5-63 µm) and sieving (>63 µm)
Specific details on test material used for the study:
Identity: FAT 40557/A
Batch-no.: PV1
Purity: 65 %
Appearance: Solid powder, red-brown
Expiration date: 30 September, 2002
Storage conditions: At room temperature at about 20 °C, away from direct sunlight.
Percentile:
D50
Mean:
< 100 µm
Remarks on result:
other: SD not available
No.:
#1
Size:
< 0.74 µm
Distribution:
0.04 %
No.:
#2
Size:
> 0.74 - < 1.53 µm
Distribution:
0.09 %
No.:
#3
Size:
> 1.53 - < 3.04 µm
Distribution:
0.18 %
No.:
#4
Size:
> 3.04 - < 6.09 µm
Distribution:
0.53 %
No.:
#5
Size:
> 6.09 - < 11.83 µm
Distribution:
1.58 %
No.:
#6
Size:
> 11.83 - < 24.26 µm
Distribution:
3.81 %
No.:
#7
Size:
> 24.26 - < 63 µm
Distribution:
13.27 %
No.:
#8
Size:
> 63 - < 100 µm
Distribution:
36.57 %
No.:
#9
Size:
> 100 - < 200 µm
Distribution:
43.04 %
No.:
#10
Size:
>= 200 µm
Distribution:
0.88 %
Conclusions:
FAT 40557/A has a mass median diameter smaller than 100 µm.
Executive summary:

In a GLP compliant study, performed according to OECD guideline 110, multistage impactor and sieving method were used to determine the particle size distribution.


The mass median diameter of the test substance was found to be smaller than 100 µm.

Description of key information

The test substance has a mass median diameter smaller than 100 µm.

Additional information

In a GLP.compliant study, performed according to OECD guideline 110, multistage impactor and sieving method were used to determine the particle size distribution. The mass median diameter of the test substance was found to be smaller than 100 µm.