Registration Dossier

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:
2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Follows Guideline OECD No. 110 (1981)
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes
Remarks:
certificate in study report
Type of method:
sieving
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
> 180 - < 355 µm
Remarks on result:
other: 88.6% of the particles have a size between 180 and 355 µm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Percentile:
other: not available when following the OECD method
Mean:
> 180 - < 355 µm
Remarks on result:
other: Geometric standard deviation can not be calculated as only one assay is made
No.:
#1
Size:
> 710 µm
Distribution:
0.6 %
No.:
#2
Size:
> 500 - <= 710 µm
Distribution:
1 %
No.:
#3
Size:
> 355 - <= 500 µm
Distribution:
2.4 %
No.:
#4
Size:
> 250 - <= 355 µm
Distribution:
38.6 %
No.:
#5
Size:
> 180 - <= 250 µm
Distribution:
50 %
No.:
#6
Size:
> 125 - <= 180 µm
Distribution:
6.6 %
No.:
#7
Size:
<= 125 µm
Distribution:
0.8 %

Particle size distribution during the principal dry test

Test sieve

710 µm

500 µm

355 µm

250 µm

180 µm

125 µm

Collecting pan

Mass of residue (g)

0.56

1.00

2.27

36.95

47.89

6.26

0.81

Percentage of residue (%)

0.6

1.0

2.4

38.6

50.0

6.5

0.8

Cumulated undersized particles (%)

99.4

98.4

96.0

57.4

7.4

0.8

0.0

Time of mechanical sieving (min)

30

30

30

30

30

30

/

Time of manual sieving (min)

1

2

2

15

3

4

/

Conclusions:
After the preliminary test, it was shown that the majority of the particles was lower than 1 mm. So, the principal sieving was made lower than 1 mm.

After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm.
Executive summary:

In compliance with

Guideline OECD No. 110 (1981)

ISO 13320-1:1999; NFX11-507 (1989)

 

After the preliminary test, it was shown that the majority of the particles was lower than.So,the principal sieving was made lower than.

 

After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm.

Description of key information

In compliance with Guideline OECD No. 110 (1981) ISO 13320-1:1999; NFX11-507 (1989)

 

After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm.

Additional information