Detailed explanation of the new standard for fire doors in 2025.

In 2025, an important new standard GB129552024 will be ushered in the field of fire doors in China. This new standard has been officially implemented since May 1, 2026, aiming at further improving the quality and performance of fire doors and providing a more solid guarantee for building fire safety. The following is a detailed interpretation of the new standard:

Second, the technical requirements are refined The new standard refines the technical requirements of fire doors to ensure their more reliable fire resistance. Specifically, the requirement of density deviation of door core plate is reduced from 10% to 0.5%, which means that the material of fire door is more uniform and the fire resistance is more stable. In addition, the new standard also increases the detection of anti-halogen return and the limitation of chloride ion dissolution, which further improves the corrosion resistance and safety of fire doors.

Third, the new performance requirements In addition to the refinement of the original technical requirements, the new standard also adds some new performance requirements. For example, mechanical properties, linkage signal receiving and feedback function, smoke sealing performance and water spray impact resistance. These new performance requirements not only improve the safety and reliability of fire doors, but also enable them to better meet the needs of modern building fire protection.

Fourth, optimization of inspection rules The new standard defines and optimizes the items and conditions of ex-factory inspection and type inspection of fire doors. Through stricter inspection rules, it is ensured that every fire door can meet the standard requirements before production and delivery, thus effectively ensuring the fire safety of buildings. To sum up, the implementation of the new fire door standard GB129552024 in 2025 will have a far-reaching impact on China's fire door market. It not only further standardizes the production and inspection process of fire doors, but also improves the quality and performance of fire doors. With the implementation of the new standards, we have reason to believe that the fire safety of buildings in China will be more effectively guaranteed, and the safety of people's lives and property will also be more firmly guarded.