For hardware structural components intended for fire-resistant applications (such as fire door hardware, building components, and fire-resistant connectors), “fire-resistance certification” is not merely a single certificate but a system of testing and classification specific to the target market. The EU, the US, the UK, and China each have their own standards; before exporting, it is crucial to distinguish which certifications exist and which ones are required. This article outlines the fire-resistance certification systems by market.
I.
EU System: EN 1634 + EN 13501-2
The testing benchmark for fire-resistant components in the EU is EN 1634-1 (fire resistance tests for doors, shutters, openable windows, and building hardware), with classification conducted according to EN 13501-2.
The letters represent specific criteria: E for integrity (resistance to flame penetration), I for insulation (resistance to heat transfer), and S for smoke tightness. Common ratings include E30, EI30, and EI60, where the number indicates the duration of fire resistance in minutes. Building hardware (such as fire door locks, door closers, and hinges) must be tested as part of the complete door assembly to establish a “chain of evidence”; testing a lock in isolation cannot prove the compliance of the entire fire door. Tests on the components themselves are conducted separately according to the EN 1363 series.
Exports of fire-resistant hardware to the EU must fall under the framework of the Construction Products Regulation (CPR);
when fire resistance characteristics are involved, assessment and performance declaration must be carried out in accordance with harmonized standards.
II. The US System: UL 10C / NFPA 252 / ASTM E119
Fire doors and hardware in the US are centered on UL certification: fire doors are tested according to UL 10C (positive pressure fire test) or UL 10B, while NFPA 252 serves as a reference standard for fire door testing, and the fire resistance of building components is evaluated under ASTM E119. UL-certified fire door assemblies (door + frame + hardware) represent a holistic “opening protection system” certification;
hardware components (hinges, door closers, locks) are included as part of the UL-listed door assembly, must be compatible with the door unit, and are subject to UL follow-up inspections.
UL also provides fire door inspection services to ensure on-site installations comply with regulations.
III.
The UK and Chinese Systems
The UK currently recognizes two testing standards: BS 476-22 (corresponding to FD30/FD60 ratings) and BS EN 1634-1. According to current building regulation guidelines, the BS 476 fire resistance rating will be removed from the Building Regulations for England in September 2029, at which point BS EN 1634-1 + EN 13501-2 will become the sole compliance pathway.
In China, fire doors undergo fire resistance testing and classification (Class A, B, or C; e.g., Class A has a fire resistance rating of 1.5 hours) in accordance with the mandatory national standard GB 12955; separate standards, such as GB 14907, apply to the fire resistance of building components, with testing and certification conducted by fire safety authorities.
IV. Key Practical Aspects of Fire-Rated Hardware Certification
- Select standards based on the target market: For exports to the EU, use EN 1634-1 and EN 13501-2; for the US, use UL 10C/NFPA 252; for the UK, pay attention to the timeline for the transition away from the BS system;
- Testing must cover the complete assembly: Fire-rated door hardware must be tested as part of an integrated system comprising the door leaf and frame; testing hardware components in isolation does not provide proof of the complete door’s fire resistance—clarify at the order stage whether the client requires “material certification for hardware components” or “certification for the door assembly system”;
- Ensure use of Notified Bodies/NRTLs: EU testing must be conducted by a Notified Body (verifiable via the NANDO database), and US certification must be issued by an NRTL (such as UL); ensure that report and certificate numbers are verifiable.
V.
Trends: Convergence of International Standards and “One-Stop” Testing
Organizations such as UL have launched “Joint Fire Testing Services for US, EU, and UK Markets,” allowing a single fire resistance test to cover UL, EN, and BS standards simultaneously, thereby significantly saving time and costs. The UK is fully transitioning to the EN system, and international fire safety standards are rapidly converging.
Industry experts advise export-oriented fire hardware enterprises to prioritize “identifying target market standards” as the first step when accepting orders: determine E/I rating requirements, select a testing agency, and plan the testing schedule.
Fire safety certification is not a multiple-choice question, but rather a checklist of requirements that must be met item-by-item according to the specific market.
