Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Currently viewing:

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:
27th June 2012
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)
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Biphenyl-4,4’-diol / CAS 92-88-6
Mass median aerodynamic diameter:
ca. 157.72 µm
Key result
Percentile:
D10
Mean:
48.49 µm
Remarks on result:
other: average of 2 values (47.99 and 49.00 µm)
Key result
Percentile:
D50
Mean:
157.72 µm
Remarks on result:
other: Average of 2 values (156.68 and 158.76 µm)
Key result
Percentile:
D90
Mean:
308.7 µm
Remarks on result:
other: Average of 2 values (307.84 and 309.55 µm)

Two test series of 3 measurements each were performed. The results were as follows;

Test series 1 (Figure 1):

L10:        47.99 µm

L50:        156.68 µm      (Median diameter)

L90:        307.84 µm

 

Test series 2 (Figure 2):

L10:        49.00 µm

L50:        158.76 µm      (Median diameter)

L90:        309.55 µm

 

Average

L10:        48.49 µm

L50:        157.72 µm      (Median diameter)

L90:        308.70 µm

Conclusions:
The median particle size D50 of the test substance, 4,4 -biphenol was determined to be 158 µm by laser diffraction measurement.
Executive summary:

The particle size distribution of the test substance was determined using OECD 110. The median particle size D50 of the test substance, 4,4 -biphenol was determined to be 158 µm by laser diffraction measurement.

Description of key information

The particle size distribution of the test substance was determined using OECD 110. The median particle size D50 of the test substance, 4,4 -biphenol was determined to be 158 µm by laser diffraction measurement.

Additional information