Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
GLP compliance:
yes (incl. certificate)
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 3 350 µm
Distribution:
ca. 1.6 %
No.:
#2
Size:
>= 3 350 - < 4 000 µm
Distribution:
ca. 82.5 %
No.:
#3
Size:
> 4 000 - < 5 600 µm
Distribution:
ca. 13.5 %
No.:
#4
Size:
>= 5 600 - < 8 000 µm
Distribution:
ca. 2.4 %

Applicant's summary and conclusion

Executive summary:

The particle size distribution was performed according to the OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius).

The test item Hydrogenated olive oil cetyl ester has a particle size of

Particle size inµm

Mass %

<3350

1.6

>=3350

82.5

>=4000

13.5

 5600 <8000

 2.4

which was determined by sieving.