GB/T 15822.3-2024 "Non-destructive testing - Magnetic particle testing - Part 3: Equipment" applies to three types of magnetic particle testing equipment, including portable, stationary, and dedicated systems for continuous inspection, as well as auxiliary equipment for magnetization, demagnetization, illumination, measurement, and monitoring. It specifies the minimum requirements for equipment performance and practicality, defines key parameter limits such as the lifting force of portable electromagnetic yokes and the duty cycle of current generators, and standardizes methods for equipment measurement, calibration, and in-service inspection. The standard also updates technical data for UV-A sources and current measurement requirements, providing a unified basis for equipment selection, use, and maintenance to ensure the reliability of testing equipment and the accuracy of inspection results.