GB12955-2024

Fire-resistant doorsets

防火门

GB 12955-2024 ist eine gültige verbindliche chinesische Nationalnorm: Fire-resistant doorsets. Branchencluster: Bau. Schwerpunkt: Produktsicherheit. Inkrafttreten: 1. Mai 2026.

Die Anwendbarkeit hängt vom Produktumfang, dem Zertifizierungsweg, Bekanntmachungen der Behörden und Übergangsregeln ab. Fordern Sie eine Übersetzung an oder prüfen Sie die Quelle, bevor Sie diesen Eintrag für Compliance-Entscheidungen nutzen.

Compliance-Überblick

Dieser Überblick ist derzeit nur auf Englisch verfügbar.

Geltungsbereich und Anwendbarkeit

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.

Technische Anforderungen

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.

Prüfverfahren

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.

Häufige Fragen

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.

Hinweise zur Anwendbarkeit

Normtyp: Produkt
CCS: C 82
ICS: 13.220.50
Zuständige Behörde: National Fire and Rescue Administration
Technisches Komitee: National Technical Committee on Fire Protection of Standardization Administration of China

Normbeziehungen

Ersetzt:GB 12955-2008