GB12955-2024

Fire-resistant doorsets

防火门

GB 12955-2024 est une norme nationale chinoise obligatoire en vigueur : Fire-resistant doorsets. Secteur : Construction. Thème principal : Sécurité des produits. Entrée en vigueur : 1 mai 2026.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to the design, manufacturing, and quality inspection of side-hung and side-hung folding fire-resistant doorsets used in industrial and civil buildings. It categorizes fire doors by application locations, including evacuation routes, facility equipment rooms, and residential entrance doors. Manufacturers must ensure their products meet these requirements before entering the Chinese market.

Exigences techniques

The standard specifies comprehensive technical requirements across several critical areas. It mandates strict appearance and dimensional deviation limits to ensure proper fit and finish. For materials, it focuses on key material performance, such as the combustion and smoke toxicity grades of door core materials, rather than specifying exact material types. For hardware and accessories, the standard outlines performance criteria for seals, fire-resistant glass, locks, and hinges, ensuring they can withstand fire conditions. It also introduces new mechanical performance requirements, including repeated opening/closing durability, vertical load resistance, and impact resistance. A major update is the inclusion of smoke containment performance and linkage signal reception/feedback functions for evacuation route doors. Fire doors in evacuation routes must now comply with these advanced safety and monitoring requirements. Additionally, doors with a fire integrity of 60 minutes or more must undergo an anti-water spray impact test to ensure structural integrity during firefighting operations.

Méthodes d’essai

The standard outlines rigorous testing procedures to verify compliance. Key tests include the repeated opening and closing durability test using specialized equipment, and mechanical strength tests such as the vertical load test and soft heavy body impact test. Fire performance is evaluated according to GB/T 7633, determining both fire integrity and insulation. Furthermore, smoke leakage rates are measured under specific temperature and pressure differentials, and the water spray impact test is conducted post-fire test to assess structural resilience. Manufacturers must submit detailed drawings and samples for type testing to verify all structural and performance parameters.

Questions fréquentes

What products are regulated under GB 12955-2024?

GB 12955-2024 applies to side-hung and side-hung folding fire-resistant doorsets used in industrial and civil buildings. It categorizes them by application, such as evacuation route doors, facility equipment room doors, and residential entrance doors.

What are the main updates in GB 12955-2024 compared to the 2008 version?

The 2024 version introduces significant updates, including new classifications by application场所, added requirements for smoke containment and water spray impact resistance, and the inclusion of linkage signal feedback functions for evacuation route doors. It also shifts focus to key material performance rather than specific material types.

How does GB 12955-2024 differ from international fire door standards like ISO?

While GB 12955-2024 references international methodologies, such as ISO 3008-1 for fire resistance tests, it establishes distinct Chinese compliance categories (Class A, B, C) and specific testing parameters for smoke leakage and mechanical durability that must be strictly followed for the Chinese market.

The summary above provides a high-level overview of GB 12955-2024. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 12955-2024 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: C 82
ICS: 13.220.50
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China

Relations

Remplace:GB 12955-2008