Guide to BS EN 12209:2003 Digit-4

Guide to BS EN 12209:2003 [Digit 4]

BS EN 12209:2003 is the European standard covering mechanically operated locks, latches and locking plates. This standard covers requirements and test methods for all types of mechanical lock or latch including associated or separately supplied locking plates.

Digit 4 - Suitability for use on Fire Doors
Grade 0: Not approved for use on fire/smoke resisting door assemblies.
Grade 1: Suitable for use on fire/smoke resisting door assemblies