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EC number: 911-428-0 | CAS number: -
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:
- 2017-03-06 to 2017-08-02
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13322-2
- Version / remarks:
- 2006-11-01
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- other: Dynamic image analysis
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Mass median aerodynamic diameter:
- 105.76 µm
- Remarks on result:
- other: Because of a density near 1 g/cm^3 (0.9924), the mass median diameter is essentially equal to the mass median aerodynamic diameter
- No.:
- #1
- Size:
- <= 45.39 µm
- Distribution:
- 10 %
- No.:
- #2
- Size:
- <= 105.76 µm
- Distribution:
- 50 %
- No.:
- #3
- Size:
- <= 210.57 µm
- Distribution:
- 90 %
- No.:
- #4
- Size:
- <= 547.83 µm
- Distribution:
- 99 %
- Conclusions:
- Mass median diameter (dynamic image analysis; ISO 13322-2): 105.76 µm
- Executive summary:
Particle size distribution for the test item was determined using dynamic image analysis according to ISO 13322 -2 (Voelpker, 2017).
In total, 1,294,464 particles were measured via dynamic image analysis. Size of particles was calculated by EQPC (Circle of Equal Projection Area).
The following results had been determined:
Sauter mean diameter: 83.52 µm;
Volume mean diameter: 125.09 µm;
Mass median diameter: 105.76 µm
D 10 (mass) diameter: 45.39 µm;
D 90 (mass) diameter: 210.57 µm.
Reference
In total, 1,294,464 particles were measured via dynamic image analysis. Size of particles was calculated by EQPC (Circle of Equal Projection Area).
Q3(x) is the volume distribution with the length parameter x. As the length parameter EQPC was used.
Sauter mean diameter: 83.52 µm;
Volume mean diameter: 125.09 µm;
Particle size |
125.00 µm |
Q3=61.41% |
residual =38.59% |
Particle size |
250.00 µm |
Q3=94.53% |
residual =5.47% |
Particle size |
500.00 µm |
Q3=98.77% |
residual =1.23% |
Results table:
Interval-upper limit x0/µm |
Distribution sum Q3/% |
residual (1-Q3)/% |
Fraction dQ3/% |
center of interval xm/µm |
Density distribution q3lg |
11.28 |
0.15 |
99.85 |
0.15 |
7.98 |
0.01 |
12.15 |
0.20 |
99.80 |
0.05 |
11.71 |
0.01 |
14.75 |
0.34 |
99.66 |
0.14 |
13.39 |
0.02 |
17.92 |
0.58 |
99.42 |
0.23 |
16.26 |
0.03 |
21.76 |
1.01 |
98.99 |
0.43 |
19.75 |
0.05 |
26.43 |
1.79 |
98.21 |
0.78 |
23.98 |
0.09 |
32.10 |
3.25 |
96.75 |
1.47 |
29.13 |
0.17 |
38.99 |
6.29 |
93.71 |
3.04 |
35.38 |
0.36 |
47.36 |
11.14 |
88.86 |
4.85 |
42.97 |
0.57 |
57.52 |
17.47 |
82.53 |
6.33 |
52.19 |
0.75 |
69.86 |
25.92 |
74.08 |
8.45 |
63.39 |
1.00 |
84.86 |
36.10 |
63.90 |
10.18 |
77.00 |
1.21 |
103.06 |
48.40 |
51.60 |
12.30 |
93.52 |
1.46 |
125.18 |
61.52 |
38.48 |
13.12 |
113.58 |
1.55 |
152.04 |
74.46 |
25.54 |
12.95 |
137.96 |
1.53 |
184.66 |
85.26 |
14.74 |
10.79 |
167.56 |
1.28 |
224.29 |
92.51 |
7.49 |
7.25 |
203.51 |
0.86 |
272.41 |
96.29 |
3.71 |
3.78 |
247.18 |
0.45 |
330.87 |
98.01 |
1.99 |
1.72 |
300.22 |
0.20 |
401.86 |
98.39 |
1.61 |
0.38 |
364.64 |
0.04 |
488.09 |
98.71 |
1.29 |
0.32 |
442.88 |
0.04 |
592.83 |
99.22 |
0.78 |
0.50 |
537.92 |
0.06 |
720.03 |
99.42 |
0.58 |
0.20 |
653.34 |
0.02 |
874.54 |
99.42 |
0.58 |
0.00 |
793.53 |
0.00 |
1062.19 |
100.00 |
0.00 |
0.58 |
963.81 |
0.07 |
1290.12 |
100.00 |
0.00 |
0.00 |
1170.62 |
0.00 |
1566.95 |
100.00 |
0.00 |
0.00 |
1421.81 |
0.00 |
1903.18 |
100.00 |
0.00 |
0.00 |
1726.90 |
0.00 |
2311.55 |
100.00 |
0.00 |
0.00 |
2097.45 |
0.00 |
2807.56 |
100.00 |
0.00 |
0.00 |
2547.51 |
0.00 |
3410.00 |
100.00 |
0.00 |
0.00 |
3094.15 |
0.00 |
3653.89 |
100.00 |
0.00 |
0.00 |
3529.84 |
0.00 |
Description of key information
Mass median diameter (dynamic image analysis; ISO 13322-2): 105.76 µm
Additional information
Particle size distribution for the test item was determined using dynamic image analysis according to ISO 13322 -2 (Voelpker, 2017).
In total, 1,294,464 particles were measured via dynamic image analysis. Size of particles was calculated by EQPC (Circle of Equal Projection Area).
The following results had been determined:
Sauter mean diameter: 83.52 µm;
Volume mean diameter: 125.09 µm;
Mass median diameter: 105.76 µm
D 10 (mass) diameter: 45.39 µm;
D 90 (mass) diameter: 210.57 µm.
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