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Particle size distribution (Granulometry)

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Endpoint:
particle size distribution (granulometry)
Type of information:
other: read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Study period:
04 Aug - 04 Aug 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve Analysis"; CIPAC Handbook Volume F, 1995.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Food and Consumer Product Safety Authority, Prinses Beatrixlaan 2, 2595 AL Den Haag, Postbus 19506, 2500 CM Den Haag, The Netherlands, 30 March 2009
Type of method:
other: dry sieving
Type of distribution:
other: dry sieving
No.:
#1
Size:
< 100 µm
Distribution:
0 %
No.:
#2
Size:
> 100 - < 180 µm
Distribution:
0 %
No.:
#3
Size:
> 180 - < 250 µm
Distribution:
0 %
No.:
#4
Size:
> 250 - < 500 µm
Distribution:
0 %
No.:
#5
Size:
> 500 - < 2 000 µm
Distribution:
0.2 %
No.:
#6
Size:
> 2 000 µm
Distribution:
99.8 %

In the receiver pan (i.e. the fraction < 100 µm), no test substance was collected.

Conclusions:
Particle size distribution of Vinasses by dry sieving was successfully performed. In the receiver pan (i.e. the fraction < 100 µm), no test substance was collected.
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Principles of method if other than guideline:
Laser granulometry; NF ISO 13320-1

GLP compliance:
not specified
No.:
#1
Size:
< 0.1 µm
Distribution:
0 %
Remarks on result:
other: Mean Value of 5 individual samples
No.:
#2
Size:
< 1 µm
Distribution:
44.65 %
Remarks on result:
other: Mean Value of 5 individual samples
No.:
#3
Size:
< 10 µm
Distribution:
95.73 %
Remarks on result:
other: Mean Value of 5 individual samples
No.:
#4
Size:
< 100 µm
Distribution:
100 %
Remarks on result:
other: Mean Value of 5 individual samples
No.:
#5
Size:
< 1 000 µm
Distribution:
100 %
Remarks on result:
other: Mean Value of 5 individual samples

Details:

Statistics (% VOL)

Measurement

10-0705-2-1

Measurement

10-0705-2-2

Measurement

10-0705-2-3

Measurement

10-0705-2-4

Measurement

10-0705-2-5

Average of measurements

D[4,3] – mean diameter in volume (µm)

2.277

2.276

2.320

2.339

2.496

2.342

D[3,2] – mean diameter in surface (µm)

0.741

0.728

0.724

0.724

0.722

0.728

% < 0,1 µm

0.00

0.00

0.00

0.00

0.00

0.000

% < 1 µm

44.47

44.67

44.72

44.75

44.64

44.65

% < 10 µm

96.04

96.02

95.81

95.72

95.08

95.73

% < 100 µm

100.00

100.00

100.00

100.00

100.00

100.00

% < 1000 µm

100.00

100.00

100.00

100.00

100.00

100.00

d(0.1) (µm)

0.298

0.288

0.289

0.291

0.293

0.292

d(0.2) (µm)

0.534

0.529

0.532

0.532

0.537

0.533

d(0.5) (µm)

1.131

1.125

1.125

1.124

1.128

1.127

d(0.8) (µm)

3.162

3.138

3.189

3.199

3.263

3.190

d(0.9) (µm)

5.622

5.598

5.701

5.735

5.914

5.714

RSD values obtained on d(0.1), d(0.5) and d(0.9) were below acceptance criteria given by 13320 ISO Standard.

Endpoint:
particle size distribution (granulometry)
Data waiving:
other justification
Justification for data waiving:
other:

Description of key information

Liquid Vinasses:
not applicable
Solid Vinasses:
Particle size distribution at different passages:
< 500 µm: 0%
500 - 2000 µm: 0.2%
> 2000 µm: 99.8%

Additional information

The result for solid Vinasses is derived from a study with Vinasses, residue of fermentation containing biomass of Corynebacterium glutamicum (Method: CIPAC, Physico-chemical Methods for Technical and Formulated Pesticides, MT 59: "Sieve-Analyses"). Since all Vinasses are very similar in composition, particle size distribution is as well similar.

A study on Vinasses, residue of fermentation, salt-enriched was performed with the dried and crushed material of a liquid Vinasse (Laser granulometry; NF ISO 13320-1). Therefore, this study is not relevant for the substance as it is marketed and used.

 

The particle size distribution (granulometry) study does not need to be performed for Vinasses, which are marketed or used only in forms of suspension (aqueous solution) and pastes.