This standard specifies the terms and definitions of magnetic particle testing methods for internal combustion engine parts and components, personnel requirements, testing equipment, testing media, observation conditions, part surface requirements, magnetization conditions, magnetization methods, magnetization specifications, precautions during magnetization, and testing methods. , demagnetization and cleaning. This standard is applicable to the detection of surface and near-surface defects in finished products, semi-finished products and raw materials made of magnetic steel materials, and serves as the basis for formulating operating procedures for magnetic particle testing.