This standard establishes a unified method applicable to the measurement of electrical conductivity in metal powder materials, aiming to provide key technical support for research, development, and quality control in fields such as powder metallurgy, additive manufacturing, and battery materials. Its core lies in accurately measuring the resistance value of powder samples under specific pressures, which is then converted into electrical conductivity to evaluate the material's conductive performance and consistency. In practice, the detection primarily relies on powder resistivity testers equipped with four-probe probes or specialized powder testing fixtures. Such instruments typically integrate high-precision DC constant current sources and data acquisition systems, capable of simulating various compaction pressures and monitoring the relationship between powder resistance, thickness, and pressure in real-time within a controlled environment, thereby ensuring the accuracy and repeatability of test results.