This standard is part of a series of inspection methods for environmental testing equipment, specifically designed to regulate the performance inspection of combined testing equipment capable of simultaneously applying temperature and sinusoidal vibration environmental stresses (commonly referred to as "three-comprehensive test chambers"). It specifies in detail the characteristic requirements, inspection conditions, methods, and cycles for such equipment to ensure that the temperature field and vibration excitation it provides comply with the requirements of relevant environmental testing method standards (such as GB/T 2423.35, GB/T 2423.36, etc.). When calibrating the equipment, a series of precise measuring instruments are required, including temperature sensors (such as thermocouples) and temperature recorders to monitor temperature field uniformity and fluctuations, as well as vibration sensors (accelerometers), charge amplifiers, and vibration control analysis systems to determine key parameters such as vibration frequency, amplitude, acceleration, and uniformity. This standard provides essential technical guidance for the research, development, and quality certification of related products.