This standard specifies the general requirements, system composition, detection parameter settings, detection procedures and data processing requirements for flash-excited infrared thermal imaging detection methods. This standard is suitable for detecting defects such as internal delamination and inclusions in composite materials such as carbon fiber laminates and fiberglass reinforced plastics used in the aviation industry. It is also suitable for detecting defects such as debonding, water accumulation, oil accumulation and other internal defects in sandwich structures. It is suitable for field and field testing of products. In-service inspection. Flash-excited infrared thermal imaging detection of other materials can be used as a reference.