IEC 60216-4-1 is a standard developed by the International Electrotechnical Commission (IEC) that specifies technical requirements for single-chamber aging ovens for evaluating the heat resistance of electrical insulating materials. The standard applies to single-chamber ovens used in laboratory environments and aims to determine the thermal life and heat resistance of electrical insulating materials through accelerated weathering testing. The standard details key parameters such as oven design, Temperature uniformity, control accuracy, ventilating rate, and safety performance, ensuring ovens provide a stable and reliable environment during aging tests. In addition, the standard also provides oven calibration methods and performance verification procedures to ensure the accuracy and repeatability of test results.