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→13.5.4 Corrosion Testing
atmospheres with four components have proven to be the most likely ones to realistically simulate long term natural corrosive gas exposure <xr id="tab:Typical Corrosive Gas Concentrations (ppm) Near Industrial Facilities"/> (Tab. 13.4).
<figtable id="tab:Some Standardized Corrosion Tests for Electrical Contacts">'''Table 13.5: Some Standardized Corrosion Tests for Electrical Contacts''' {| class="twocolortable" style="text-align: left; font-size: 12px"|-!Test Method!Corrosive Gas!Degree of Severity 1 [ppb]!Degree of Severity 2 [ppb]!Temperature [°C]!Relative Humidity [%]!Duration [d]!Standard|-|1-component corrosive gas|SO2<br />H2S|500<br />100|10000<br />10000|25 + 1<br />25 + 1|75 + 3<br />75 + 3|1, 4, 10 oder 21<br />1, 4, 10 oder 21|DIN 40046 Part 36<br />DIN 40046 Part 37|}</figtable>
The differences in the corrosive gas concentrations and the test durations are dependent on the end application of the contact components and the
