Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
26.10.2016 - 13.12.2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
no
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
3.6 µm
St. dev.:
0.15
Key result
Percentile:
D50
Mean:
13.6 µm
St. dev.:
0.25
Percentile:
D90
Mean:
41.7 µm
St. dev.:
1.75

The median particle size D50 (D (v, 0.5): 50 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D50 = 13.8 µm

2nd test series: D50 = 13.3 µm

The average of the median particle size D50 was: D50 = 13.6 µm

The particle size D10 (D (v, 0.1): 10 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D10 = 3.8 µm

2nd test series: D10 = 3.5 µm

The average of the particle size D10 was: D10 = 3.6 µm

The particle size D90 (D (v, 0.9): 90 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D90 = 48.9 µm

2nd test series: D90 = 45.4 µm

The average of the particle size D90 was: D90 = 47.1 µm

The particle size distribution showed a polymodal distribution. The maxima were observed at approximately 15 µm and approximately 400 µm. A shoulder was observed at approximately 1 µm.

Conclusions:
The test item has a median particle size D50 = 13.6 µm.
Executive summary:

A study was conducted according to ISO 13320 and CIPAC MT 187 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series were performed with the test item. The test item has a median particle size D50 = 13.6 µm.

Description of key information

The test item has a median particle size D50 = 13.6 µm.

Additional information

A study was conducted according to ISO 13320 and CIPAC MT 187 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series were performed with the test item. The test item has a median particle size D50 = 13.6 µm (reference 4.5-1).