2-ethoxyethyl-2-(4-(2,6-dihydro-2,6-dioxo-7-phenyl-1,5-dioxaindacen-3-yl)phenoxy)acetate

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: ISO 13320-1 : 1999

Deviations:

no

Type of distribution:

volumetric distribution

Test material

Reference

Name:

Unnamed

Type:

Constituent

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Mean:

>= 7.89 - <= 8.18 µm

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size 2

Percentile:

D10

Mean:

1.98

St. dev.:

0.05

Particle size 3

Percentile:

D50

Mean:

8.03 µm

St. dev.:

0.13

Particle size 4

Percentile:

D90

Mean:

29.9 µm

St. dev.:

0.65

Any other information on results incl. tables

overall volume weighted mean diameter: 13.961 µm (range of means: 13.7 – 14.2 µm);

approximate volume % of the dispersion: ≤ 100 µm: 99%; ≤ 10 µm: 59%, ≤ 4 µm: 26%

Applicant's summary and conclusion

Executive summary:

The particle size distribution of the substance was determined according to ISO 13320-1:1999. The overall mass median diameter (D50 percentile) was 8.03 µm (range of medians of 6 measurements: 7.89 – 8.18 µm). The corresponding overall D10 and D90 percentiles were 1.98 and 29.8 µm, respectively. The overall volume weighted mean diameter was 14.0 µm (range of means: 13.7 – 14.2 µm). Hence the particle size data attained from the six measurements were quite consistent. Approximately 99 volume % of the generated dispersion was ≤ 100 µm, 59% ≤ 10 µm and approximately 26% ≤ 4 µm.