ASTM E74

ASTM E74 is a standard testing method used to measure how much electrical contact resistance exists between two surfaces when they are pressed together. This helps determine how well electrical connections conduct current, which is important for ensuring device reliability and safety. The test involves applying a specified load to the contact surfaces, then measuring the electrical resistance to evaluate their performance. It is commonly used in industries like electronics, electrical components, and connectors to verify that contacts will work effectively under normal use conditions.