BS EN 12209 is a way of categorising ironmongery products according to certain criteria. By doing this it is possible to see if the product in question is fit for purpose.
It is broken down into 11 categories that look at different aspects of the ironmongery.
The categories are;-
Digit 1 - Category of use.
- grade 0: Low frenquency of use with a low chance for misuse.
e.g. internal residential doors
- grade 1: Medium frequency of use with a medium chance for misuse.
e.g. internal office doors
- grade 2: High frequency of use with a high chance of misuse.
e.g. public doors
Digit 2 - Durability
Twelve grades are identified with minimum figures for deadbolt and snib operation.
Digit 3 - Door mass and closing force
Nine grades are identified with maxiumum figures for closing forces at various door masses. Tests are conducted from a standing start with the latch resting against the strike plate.
Digit 4 - Fire Resistance
Two grades are identified: -
- grade 0: not approved for use on fire doors.
- grade 1: approved for use on fire doors.
Digit 5 - Safety
Grade 0: No safety required.
Digit 6 - Corrosion Resistance
Eight grades are identified with neutral salt-spray with and without temperature resistance
Digit 7 - Security and drill resistance
Seven grades are identified with minimum figures relating to physical attack, with or without drilling to the lockcase.
Digit 8 - Field of door application
Fifteen grades available that identify if if the door is hinged/sliding or if a key is needed or keyless egress etc.
Digit 9 - Type of key operation and locking
Nine grades are identified for differing types of key operation. The grading determines how the lock is assessed for deadlocking there is a maximum key torque operating requirement of 1.5 Nm and a minimum key strength of 2.5 Nm.
- grade 0: Not Applicable
- grade A: cylinder lock or latch, manually locking
- grade B: cylinder lock or latch, automatically locking
- grade C: cylinder lock or latch, manually locking or intermediate locking.
- grade D: lever lock or latch, manually locking.
- grade E: lever lock or latch, automatically locking
- grade F: lever lock or latch, manually locking with intermediate locking
- grade G: lock or latch without key operation, manually locking
- grade H: lock without key operation, automatically locking
Five grades are identified:-
- grade 0: lock without follower
- grade 1: lock with sprung lever or latch
- grade 2: lock with light unsprung lever
- grade 3: lock with heavy unsprung lever
- grade 4: lock with manufacturer's own specification furniture
Nine grades are identified relating to the number of differs and levers
- grade 0: No requirements
- grade A: minimum three detaining elements
- grade B: minimum five detaining elements
- grade C: minimum five detaining elements, extended number of effective differs
- grade D: minimum six detaining elements
- grade E: minimum six detaining elements, extended number of effective differs