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EC number: 274-550-7 | CAS number: 70304-38-0
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 3. 2. 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002).
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 2591-1 Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
- Deviations:
- no
- Principles of method if other than guideline:
- A single test sieve separates a particular material into two fractions, of which one is retained by the sieving medium and the other of which passes through its apertures.The apparatus Analysette 3 is a shaking sieve system in the classic sense, with an electromagnetic drive in the base, which vibrates the sieves vertically.
- GLP compliance:
- no
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- No.:
- #1
- Size:
- 1 400 µm
- Distribution:
- 0.61 %
- No.:
- #2
- Size:
- 1 000 µm
- Distribution:
- 4.35 %
- No.:
- #3
- Size:
- 710 µm
- Distribution:
- 12.17 %
- No.:
- #4
- Size:
- 500 µm
- Distribution:
- 19.87 %
- No.:
- #5
- Size:
- 355 µm
- Distribution:
- 14.46 %
- No.:
- #6
- Size:
- 250 µm
- Distribution:
- 13 %
- No.:
- #7
- Size:
- 180 µm
- Distribution:
- 10.96 %
- No.:
- #8
- Size:
- 125 µm
- Distribution:
- 8.8 %
- No.:
- #9
- Size:
- 100 µm
- Distribution:
- 4.22 %
- No.:
- #10
- Size:
- 80 µm
- Distribution:
- 3.04 %
- Conclusions:
- see Executive summary
- Executive summary:
The particle size distribution of the test substance, Direct Brown 103, was determined. The sieving method was used.
The procedures used in the study were in accordance with:
Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002).
ISO 2591-1 Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate.
Particle size distribution of test substance, Direct Brown 103, is characterized by the following table:
Nominal aperture size
(um)
Sieve fractions (%)
Cumulative undersize (%)
Final result
Standard uncertainty
Final result
Standard uncertainty
1400
0.61
0.08
99.39
0.08
1000
4.35
0.33
95.04
0.41
710
12.17
0.47
82.87
0.88
500
19.87
0.09
63.00
0.80
355
14.46
0.14
48.54
0.94
250
13.00
0.08
35.55
0.86
180
10.96
0.11
24.59
0.74
125
8.80
0.43
15.79
0.31
100
4.22
0.80
11.57
0.49
80
3.04
0.35
8.53
0.84
< 80
8.53
0.84
Standard uncertainty is equal to one standard deviation.
Reference
Standard uncertainty of determination is equal to a standard deviation and is calculated for every fraction separately.
Description of key information
The particle size distribution of the test substance, Direct Brown 103, was determined. The sieving method was used.
The procedures used in the study were in accordance with:
Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002).
ISO 2591-1 Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate.
Additional information
Particle size distribution of test substance, Direct Brown 103, is characterized by the following table:
Nominal aperture size (um) | Sieve fractions (%) | Cumulative undersize (%) | ||
Final result | Standard uncertainty | Final result | Standard uncertainty | |
1400 | 0.61 | 0.08 | 99.39 | 0.08 |
1000 | 4.35 | 0.33 | 95.04 | 0.41 |
710 | 12.17 | 0.47 | 82.87 | 0.88 |
500 | 19.87 | 0.09 | 63.00 | 0.80 |
355 | 14.46 | 0.14 | 48.54 | 0.94 |
250 | 13.00 | 0.08 | 35.55 | 0.86 |
180 | 10.96 | 0.11 | 24.59 | 0.74 |
125 | 8.80 | 0.43 | 15.79 | 0.31 |
100 | 4.22 | 0.80 | 11.57 | 0.49 |
80 | 3.04 | 0.35 | 8.53 | 0.84 |
< 80 | 8.53 | 0.84 |
|
|
Standard uncertainty of determination is equal to a standard deviation and is calculated for every fraction separately.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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