[No public or meaningful name is available]

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: according to ISO 13320-1

Remarks:

Laser diffraction is the well experienced standard procedure for pigments and pigmentary compounds to determine particle size distribution of the substance as it is manufactured

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2020

Report date:

2020

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: ISO 13320-1

Principles of method if other than guideline:

Laser diffraction particle sizing

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Test material

Reference

Name:

Unnamed

Type:

Constituent

Details on test material:

- batch: DEB2261556
- composition: 76,0 % (a/a) constituent 1, 18,2 % (a/a) constituent 2, 1,6 % 1,4 -diketo-3,6-bis-(4'-sulfo-biphenyl-4-yl)-pyrrolo-<3,4-c>-pyrrole, 3,4 % (a/a) unknown organic compounds, 0.8 % water

Results and discussion

Particle size

Key result

Percentile:

D50

Mean:

17.3 µm

St. dev.:

2.2

Any other information on results incl. tables

Given standard deviation is based on the general experience with the method:

D50: 13 % of D50 (minimum value 0.1 µm)

Further values and information are remarked in the attached measuring report