| Sample No. |
No. of Microphotographs |
Type I - II etching Pattern |
Average per sample |
| Sample 1 |
1 |
4% |
|
| |
2 |
3% |
|
| |
3 |
7% |
|
| |
4 |
3% |
|
| |
5 |
3% |
4% |
| Sample 2 |
1 |
46% |
|
| |
2 |
36% |
|
| |
3 |
37% |
|
| |
4 |
41% |
|
| |
5 |
43% |
49.6% |
| Sample 3 |
1 |
72% |
|
| |
2 |
52% |
|
| |
3 |
64% |
|
| |
4 |
79% |
|
| |
5 |
82% |
69.8% |
| Sample 4 |
1 |
82% |
|
| |
2 |
76% |
|
| |
3 |
61% |
|
| |
4 |
58% |
|
| |
5 |
51% |
65.6% |
| Sample 5 |
1 |
25% |
|
| |
2 |
0 |
|
| |
3 |
32% |
|
| |
4 |
77% |
|
| |
5 |
74% |
41.6% |
| Sample 6 |
1 |
29% |
|
| |
2 |
31% |
|
| |
3 |
18% |
|
| |
4 |
17% |
|
| |
5 |
20% |
23% |
| Sample 7 |
1 |
27% |
|
| |
2 |
30% |
|
| |
3 |
36% |
|
| |
4 |
41% |
|
| |
5 |
35% |
33.8% |
| Sample 8 |
1 |
60% |
|
| |
2 |
77% |
|
| |
3 |
79% |
|
| |
4 |
59% |
|
| |
5 |
49% |
64.8% |
| Sample 9 |
1 |
0% |
|
| |
2 |
7% |
|
| |
3 |
6% |
|
| |
4 |
6% |
|
| |
5 |
6% |
5% |
| Sample 10 |
1 |
42% |
|
| |
2 |
69% |
|
| |
3 |
61% |
|
| |
4 |
61% |
|
| |
5 |
66% |
59.8% |
| Mean |
|
|
40.68 ± 26.38 % |
|
