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→13.5.4 Corrosion Testing
Corrosion products on the surface of electrical contacts can reduce the reliability of contact making significantly by, for example, higher contact
resistance, which will negatively affect the transmission of current and data signals. This can cause major problems in electromechanical contact
components used in the information processing technology. Causes for the formation of tarnish film on electrical contacts include for example the presence of corrosive gases such as H<sub>2S2</sub>S, SO<sub>2</sub>, NO<sub>x</sub>, O<sub>3</sub>, Cl<sub>2</sub>, and NH<sub>3</sub> <xr id="tab:Typical Corrosive Gas Concentrations (ppm) Near Industrial Facilities"/> (Tab. 13.4) in industrial environments.
<figtable id="tab:Typical Corrosive Gas Concentrations (ppm) Near Industrial Facilities">
