This standard is one of the test method series for aluminum and aluminum alloy foils, primarily specifying the methods for determining the DC resistance of aluminum foil at room temperature. The standard outlines two main determination methods: the double-arm bridge method and the DC four-probe method. Among these, the double-arm bridge method is designated as the determination method for arbitration purposes. The application of these methods, particularly in quality control of aluminum foil products in fields such as electronics and power capacitors, provides critical criteria for evaluating electrical performance. In terms of instrumentation, the implementation of this standard requires the use of precise DC resistance testing equipment, such as high-precision digital DC resistance testers, along with four-terminal measurement fixtures to accurately obtain measurement data.