This standard applies to scenarios where temperatures are above room temperature and strain rates range from 10² s⁻¹ to 10³ s⁻¹. It specifies the principles, equipment, sample preparation, data processing, and result evaluation for high strain rate high-temperature tensile tests of metallic materials. It enables the determination of mechanical properties such as tensile stress-strain curves, providing a basis for material applications under extreme working conditions. The core of the test employs a split Hopkinson tension bar, combined with a high-temperature environmental chamber, high-precision strain gauges, thermocouple temperature sensors, and a data acquisition system. By generating tensile stress waves to load the sample, the system accurately captures the mechanical response of materials under high-temperature and high strain rate conditions.