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Two other methods were used in this round-robin: EZS and SEM. As the data from LAS-W and LAS-D are already shown in previous tables and Sections, Table 7 will show only the data from the three participants using EZS and SEM. Again, No mean could be calculated from these few tests. Also, if an overall mean using all methods (including LAS-W and LAS-D) was calculated, it could be argued that it is skewed toward the results obtained by the laser diffraction methods. As we cannot claim that the real PSD is the mean obtained using the laser diffraction methods, it is not statistically valid to calculate an overall mean PSD for all techniques. For information purpose only Figure 3 shows the data from ESZ and SEM compared with the mean value obtained by laser diffraction.
| Table 7: Data from EZS (A15, 1773) and SEM (A1). | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Size |
1 |
1.5 |
2 |
3 |
4 |
6 |
8 |
12 |
16 |
24 |
32 |
48 |
64 |
96 |
128 |
|
A15 |
0.4 |
5.1 |
13.7 |
21.1 |
34.5 |
47.8 |
74.3 |
100 |
100 |
100 |
100 |
100 |
|||
|
1773 |
0 |
0.3 |
0.6 |
1.5 |
2.9 |
6.2 |
10.1 |
18.8 |
28.4 |
48 |
63 |
82.6 |
90.3 |
100 |
100 |
|
A1 |
1.4 |
3.7 |
6.9 |
13.8 |
19.9 |
34.5 |
45.9 |
64.2 |
75.4 |
89.6 |
96.9 |
100 |
100 |
100 |
100 |
Figure 3: Comparison of the mean LAS and the ESZ and SEM results
Next: Correction Procedure Up: Reference Distribution Previous: LAS-D