| n | N | φ (10-µm diameter) | φ (15-µm diameter) |
| 3 | 60 ± 20 | 6.0 ± 2.0 | 1.8 ± 0.6 |
| 4 | 80 ± 20 | 8.0 ± 2.0 | 2.4 ± 0.6 |
| 5 | 100 ± 20 | 10 ± 2 | 3.0 ± 0.6 |
| 6 | 120 ± 30 | 12 ± 4 | 3.6 ± 1.2 |
| 10 | 200 ± 32 | 20 ± 3 | 5.9 ± 0.9 |
| 20 | 400 ± 45 | 40 ± 5 | 12 ± 2 |
| 30 | 600 ± 55 | - | 18 ± 2 |
| a Errors were determined as described in the text; n = number of manually counted microspheres; N = total number of encapsulated microspheres. |
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