EN 1634-1 Fire Resistance Testing: 60-Minute and 90-Minute Furnace Protocols
Engineering Overview: Engineering analysis of furnace testing under EN 1634-1, evaluating lock cylinder integrity and latch retention during 60/90-minute structural fires.
Technical & Engineering Specifications
| Fire Ratings | EI 30, EI 60, EI 90, EI 120 Minutes |
|---|---|
| Test Standard | EN 1634-1 / BS EN 1363-1 Fire Resistance |
| Material Mandate | Solid Brass or Steel Only (Melting Point >= 850°C) |
| Furnace Temperature | > 1000°C (Standard ISO Time-Temperature Curve) |
European Furnace Test Protocol
Under EN 1634-1, full-sized door sets fitted with lock cylinders are subjected to a controlled furnace heating curve exceeding 1000°C.
Pass/Fail Criteria
- Integrity (E): Zero sustained flames or flaming gas leaks through the cylinder opening.
- Insulation (I): Cylinder body must not cause unexposed door face temperature to rise > 180°C.
- Latch Deadlocking: Cam and deadbolt must remain latched post-burn.
Frequently Asked Engineering & Selection Questions
Q1: What is evaluated during EN 1634-1 fire testing of lock cylinders?
Thermal integrity (no flame breakthrough), heat insulation, and retention of positive deadbolt latching after furnace burning.