Atmospheric Corrosion of Painted Galvanized and 55%Al-Zn Steel Sheets: Results of 12 Years of Exposure

Table 3

Average levels of chemical agents, time of wetness and corrosion category of CIDEPINT Station.

Year	Deposition rate of SO2 (mg·m^−2·d^−1)	Deposition rate of chloride (mg·m^−2·d^−1)	Time of wetness fraction	Corrosion category according to ISO 9223
1	6.22	Negligible	0.61	P0S0τ 4/C2
2	7.25	Negligible	0.62	P0S0τ 4/C2
3	6.81	Negligible	0.61	P0S0τ 4/C2
4	6.53	Negligible	0.65	P0S0τ 5/C2
5	7.42	Negligible	0.63	P0S0τ 5/C2
6	6.94	Negligible	0.69	P0S0τ 5/C2
7	7.60	Negligible	0.59	P0S0τ 4/C2
8	8.12	Negligible	0.57	P0S0τ 4/C2
9	7.93	Negligible	0.61	P0S0τ 4/C2
10	6.82	Negligible	0.62	P0S0τ 4/C2
11	7.45	Negligible	0.62	P0S0τ 4/C2
12	8.01	Negligible	0.55	P0S0τ 4/C2