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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:
2018-01-12 to 2018-01-19
Reliability:
1 (reliable without restriction)
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
1981
Deviations:
no
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
3 µm
Geometric standard deviation:
>= 0.01 - <= 0.1
Percentile:
D10
Mean:
0.8 µm
St. dev.:
0.03
Percentile:
D50
Mean:
3.1 µm
St. dev.:
0.04
Percentile:
D90
Mean:
7 µm
St. dev.:
0.1
Conclusions:
The fine fraction of the test item Naphthalene-1,5-diol has a median particle size of D50 = 3 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981) and ISO 13320 (2009).
Executive summary:

Two test series of 3 measurements each were performed with the test item. 

Test series 1:

D10:      0.8 µm                                             Standard deviation: 0.01 µm

D50:      3.1 µm           (Median diameter)     Standard deviation: 0.02 µm

D90:      7.0 µm                                             Standard deviation: 0.08 µm

 

Test series 2:

D10:      0.8 µm                                             Standard deviation: 0.02 µm

D50:      3.1 µm           (Median diameter)     Standard deviation: 0.04 µm

D90:      7.1 µm                                             Standard deviation: 0.10 µm

 

Average

D10:      0.8 µm                                            Standard deviation: 0.03 µm

D50:      3.1 µm           (Median diameter)     Standard deviation: 0.04 µm

D90:      7.0 µm                                             Standard deviation: 0.10 µm

The fine fraction of the test item Naphthalene-1,5-diolhas a median particle size of D50 = 3 µm, which was determined by laser diffraction measurementaccording to OECD Test Guideline 110 (1981) and ISO 13320 (2009).

Description of key information

The fine fraction of the test item Naphthalene-1,5-diol has a median particle size of D50 = 3 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981) and ISO 13320 (2009).

Additional information