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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:
20.02.97 to 24.02.97
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
sieving
Remarks:
In addition Multistage impactor method
Type of particle tested:
primary particle
Type of distribution:
mass based distribution
Specific details on test material used for the study:
Batch No.: WP2/96
Expiration date: November 30, 2004
Appearance: Orange-brown,powder
Storage: At room temperature
Mass median aerodynamic diameter:
< 47 µm
Percentile:
D50
Mean:
< 47 µm
Remarks on result:
other: Standard deviation not specified.
No.:
#1
Size:
< 63 µm
Distribution:
59.13 %
No.:
#2
Size:
>= 63 - < 100 µm
Distribution:
26.45 %
No.:
#3
Size:
>= 100 - < 200 µm
Distribution:
13.87 %
No.:
#4
Size:
>= 200 µm
Distribution:
0.55 %
Conclusions:
Median of mass distribution (diameter) of FAT 45176/A was < 47 μm.
Executive summary:

The determination of the particle size distribution of FAT 45176/A was performed under GLP compliance according to OECD 110 guideline. The substance FAT45'176/A is a powder with a rate of 0.55 mass-% greater than 200 µm. The particle size distribution further has been determined to be 9.9 % < 10 µm. 50 mass-% of the substance were smaller than 47 µm (MMD). The maximum of mass frequency was a about 15 µm.

Description of key information

 Median of mass distribution (diameter) of Reactive Orange 136 was < 47 μm.

Additional information

The determination of the particle size distribution of FAT45'176/A was performed under GLP compliance according to OECD 110 guideline. The substance FAT45'176/A is a powder with a rate of 0.55 mass-% greater than 200 µm. The particle size distribution further has been determined to be 9.9 % < 10 µm. 50 mass-% of the substance were smaller than 47 µm (MMD). The maximum of mass frequency was about 15 µm.