The standard specifies test methods for evaluating the performance of single cells and stacks of solid oxide fuel cells (SOFCs). The standard covers key indicators such as electrical performance, thermal management, efficiency, stability and durability of SOFCs under different operating conditions, providing a scientific basis for the development, production and application of SOFCs. Through the implementation of this standard, the reliability and optimized performance of SOFCs can be ensured, and their wide application in the energy field can be promoted.