1. System Installation Requirements
1-31
TI 33J01J10-01EN
n Outline of G3 Environment Compatibility
copper test piece is below 0.03 µm (see note below).
0.1 µm (see note below).
copper test piece is below 0.2 µm (see note below).
test piece is 0.2 µm or more (see note below).
oxygen-free copper sheet, which is 15 cm
2
the plant site for one month and checked for any change before and after the test to determine the degree of corrosion (see table
by the standard.
Table ClassicationofCorrosive-gasCorrosionLevels
G1
(Mild)
G2
(Moderate)
G3
(Harsh)
GX
< 300
(< 0.03)
< 1000
(< 0.1)
< 2000
(< 0.2)
2000
(
0.2)
[Å]
Group A H
2
S < 3 < 10 < 50 50 [mm
3
3
]
SO
2
, SO
3
< 10 < 100 < 300 300
Cl
2
< 1 < 2 < 10 10
NOx < 50 < 125 < 1250
1250
Group B < 1 < 2 < 10
10
NH
3
< 500 < 10000 < 25000 25000
O
3
< 2 < 25 < 100 100
The Group-A gases shown in the table may coexist and cause inter-reaction. Inter-reaction
factors are not known for the Group-B gases.
June 30, 2016-00
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