This document specifies the requirements, test methods, inspection rules, warranty period, marking, packaging, transportation and storage of high-temperature fire smoke exhaust fans (hereinafter referred to as "fans"). This document applies to axial flow and diagonal flow fans installed in mechanical smoke exhaust systems of various buildings to exhaust smoke in the event of fire. This document does not apply to fire smoke exhaust fan boxes, tunnel jet fans with smoke exhaust functions, and subway axial flow fans used in subway tunnels.