Exposure Time (T) day

Initial weight (W_o) g

Final weight (W_i) g

Weight loss (W₁) g

Corrosion rate (C.R) mm/yr.

% Weight loss

0

-

-

-

-

-

7

11.0777

11.0530

0.0247

0.0005646

0.2229

14

11.9859

11.9448

0.0411

0.0004698

0.3429

21

9.2557

9.1932

0.0625

0.0004762

0.6752

28

11.0338

10.9399

0.0939

0.0005366

0.8510

35

9.0682

8.9853

0.0830

0.0003795

0.9152

42

11.8944

11.8139

0.0805

0.0003067

0.6767