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BS EN 12209 Building Hardware –Mechanically Operated Locks, Latch and Locking Plates

Views:60     Author: D&D Hardware     Publish Time: 2015-12-04      Origin:Site

Mortise Lock- D&D Hardware

1.Category of use

Four grades are identified:

Grade 1 : Low frequency of use by people with a high incentive to exercise care and a small chance of misuse.

E.g.Internal residential doors

Grade 2 : Medium frequency of use by people with some incentive to exercise care but where there is some chance of misuse.
E.g.Internal office doors.

Grade 3 : High frequency of use by public or others with little incentive to exercise care and with a high change of misuse.
E.g.Public doors.


Twelve grades are identified with minimum figures for deadbolt and snib operation, and latch bolt operation with and without side load, as show. The side load is applied to the latch bolt when it is being withdrawn.

No of operations

Incesting Side Load
grade Cgrade Hgrade Mgrade Sgrade X
grade Bgrade Ggrade Lgrade Rgrade W
grade Agrade F

3.Door mass  

Nine grades are identified with maximum figure for closing force at various door masses as shown. Note :losing force is form a standing. Star :i.e.fully extended latch bolt in contact with striking plate at star of test .

Maximun closingUp to 100kgDoor mass up to 200kgAbove 200kg
15Ngrade 7grade 8grade 9
25Ngrade 4grade 5grade 6
50Ngrade 1grade 2grade 3

4.Fire resistance

Two grade are identified :

Grade 0 : Not approved for use on fire/smke door assemblies

Grade 1 : Suitable for use on fire/smoke door assemblies tested to BS EN 1634-1 etc.

Note 1. A grade 1 classification means only that the lock has been designed for use on fire/smoke control doors; the actual fire performance achieved(e.g.fire integrity of 30minutes on a partially glazed timber door etc.)will be contained in a separate fire test report.

Note 2. Where a product is intended for fire/somke door use (i.e.a."1" in box 4 ), it must be possible to demonstrate compliance with the Essential Requirements of the Construction Products (Amendments)Regulation. It is recommended that the product should bear the CE mark(see section on CE marking) .


No requirement, but note : a lock or latch conforming to this standard can, at the same time, also be part of an exit device conforming to BS EN 179 or BS EN 1125.

6.Corrosion resistance

Eight grade are identified with neutral salt-spray (NSS)corrosion resistance grades from BS EN 1670:1988, with and without Temperaturere resistance as shown :

Corrision resistance (NSS)Temperature resistance
No requirement       -20c to +80C
240 hoursgrade Dgrade G
96 hoursgrade Cgrade F
48 hoursgrade Bgrade E
24 hoursgrade A
No requirementgrade O

8. Field of door application.

Fifteen grades are identified for differing applications-hinged or sliding doors with rim or mortice locks with either keyless egress from inside or key locking from both sides.The grading determine which application is apporopriate.in addition, there there is a requirement that lock/latch should not be removable from outside or, for grades K to R, from inside using "standard" tools. Grades H and P require support for the lockcase when installed.

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 foe deadlocking requirement as shown. In addition, there is a maximum key torque operating requirement of 1.5 Nm and a minimum key strength requirement 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 with 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 H : Lock or latch without key opreation;manually locking;

Grade G : Lock without key operation; automatically locking.

10. Type of spindle operation

Five grades are identified

Grade 0 : Lock without follower

Grade 1 : Lock with sprung lever or knob

Grade 2 : Lock with light unsprung leverg.

Grade 3 : Lock with heavy unsprung lever

Grade 4 : Lock with manufacturer's own specification furniture

11. Key identification

Nine grades are identified relating to the number of differs and levers.Grades to a latch with no locking action.

No of differs
No of levers

grade H

grade F

grade G

grade D

grade E

grade B

grade C

grade A

grade 0

BS EN 1634 Part 1: 2000

Is the European Fire Safety Satandard for determining the fire resistance of door and shutter assemblies including hardware designed for installations within openings incorporated in vertical seprating elements (doorsets).

Fire Doors-Locks

The UK construction Products Regulations require locks for use on fire doors to be safe and durable. British/European standards BS EN 12209 is the recognised way of demonstrating compliance and requires that an official Notified Body proves both the product and the manufaturer's factory product controls are satisfactory before CE marking can be applied. It is recommended that locks fitted to Fire doors should be CE marked.

CE Marking

CE marking is the easiest and safest route to providing compliance with the latest UK Construction Products Regulations for hardware used on fire, smoke and escape doors.

BS8300 & Approved Document "M" of the Building Regulations

These documents recommend that locks should have a minimum of a 55mm backset and that the centres should be a minimum of a 72mm. Locks with keyways above the cylinder are also suitable.


CE Lock items -D&D Hardware

As a professional door lock manufacturer in China, we provide customers various exterior and interior door lock, like Euro Mortise Lock, Privacy LockDeadbolt Lock, Bathroom Door Lock, Narrow Stile Lock, etc. Our door locks are high-quality, durable, anti-rust and textured. The door locks we provide are suitable for wooden door, metal door, fire rated door, double door, single door, steel door of commercial or residential application.


All our products strictly according to international Standard, such as the ANSI, BS EN/CE, UL, BHMA standard.

CE Certificate-BS EN 12209-D&D Hardware

Contact us Now:

Contact: David Jian
Mob:0086-139 2903 7292
Email: David@dndhardware.com, sales@dndhardware.com, 

Jobby Zhang

Mob:0086-137 2599 9617
Email: jobby@dndhardware.com


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Contact Info

:+86-139 2903 7292   David Jian

: +86-750- 3856396

 : sales@dndhardware.com 

:  No.4 Bldg, Street 33, West Gaoxin Rd, High-tech Zone, Jianghai Dist. Jiangmen City, Guangdong, China 

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