No.

Before firing Zn%

After firing Zn%

1

36.369

35.535

2

35.87

35.773

3

36.761

35.382

4

36.486

35.719

5

35.334

35.076

6

36.689

36.465

7

36.261

39.512

8

36.562

35.182

9

35.847

35.962

10

36.442

35.262

11

36.810

35.712