Changes

The procedures and standards for testing electrical contacts described below are mostly concentrated on contact applications in electromechanical devices. Since the range of applications for electrical contacts is very broad, a complete description of all relevant test procedures would extend the scope of this chapter of the Data Book. Therefore we limited the content here to contact coatings and switching contacts for information and power engineering. Because of the ongoing miniaturization of electromechanical devices the testing for effects of corrosive influences by the environment play an important role. Special testing procedures, such as these for brazed, soldered, and welded contact joints are covered already in chapter 3 [[Manufacturing Technologies for Contact Parts|Manufacturing Technologies for Contact Parts ]].

<caption>'''Table 13.3: Electrode Potential of Metals'''</caption>

<caption>'''Table 13.4: Typical Corrosive Gas Concentrations (ppm) Near Industrial Facilities'''</caption>

<caption>'''Table 13.5: Some Standardized Corrosion Tests for Electrical Contacts'''</caption>

<caption>'''Table 13.5: Classification of Corrosion Effects According to Battelle'''</caption>