FprEN 12209 rev

SLOVENSKI STANDARD
01-junij-2011
6WDYEQRRNRYMH0HKDQVNHNOMXþDYQLFHLQSULMHPQLNL=DKWHYHLQSUHVNXVQH
PHWRGH
Building hardware - Mechanically operated locks and locking plates - Requirements and
test methods
Schlösser und Baubeschläge - Mechanisch betätigte Schlösser und Schließbleche -
Anforderungen und Prüfverfahren
Quincaillerie pour le bâtiment - Serrures mécaniques et gâches - Exigences et méthodes
d'essai
Ta slovenski standard je istoveten z: prEN 12209 rev
ICS:
91.190 Stavbna oprema Building accessories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
prEN 12209 rev
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2011
ICS 91.190 Will supersede EN 12209:2003
English Version
Building hardware - Mechanically operated locks and locking
plates - Requirements and test methods
Quincaillerie pour le bâtiment - Serrures mécaniques et Schlösseer und Baubeschläge - Mechanisch betätigte
gâches - Exigences et méthodes d'essai Schlösser und Schließbleche - Anforderungen und
Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 33.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12209 rev:2011: E
worldwide for CEN national Members.

prEN 12209:2011 (E)
Contents                                                   Page
Foreword . 5
Introduction . 6
1 Scope. 7
2 Normative references . 7
3 Terms, definitions, symbols and units . 7
3.1 Terms and definitions . 7
4 Classification . 11
4.1 General . 11
4.2 Classification for mechanically operated locks and locking plates . 11
4.2.3 Door mass and closing force (third digit). 12
4.2.4 Suitability for use on fire/smoke doors (fourth digit) . 13
4.2.6 Corrosion resistance and temperature (sixth digit) . 13
4.2.7 Security and drill resistance (seventh digit) . 13
4.2.8 Key identification of lever locks (eight digit) . 14
4.2.9 Example for classification of locks, latches and their locking plates . 14
5 Requirements . 15
5.1 General . 15
5.1.1 Dangerous substances. 15
5.1.2 Return force of latch bolt . 15
5.1.3 Product information requirements . 15
5.1.4 Strength of key . 16
5.1.5 Strength of bolt actions . 16
5.1.6 Minimum follower restoring torque . 16
5.1.7 Protection against removal from door . 16
5.2 Category of use . 16
5.2.2 Torque to operate deadbolt or latch bolt . 17
5.2.3 Strength of follower stops. 18
5.2.4 Torque resistance for lockable deadbolt operation by handle/knob . 18
5.3 Durability requirements . 20
5.3.1  Durability of latch action . 20
5.3.2  Durability of deadbolt mechanism . 20
5.3.3  Durability of locking snib mechanism . 20
5.4 Door mass and door closing force . 20
5.4.1  Door mass . 20
5.4.2  Door closing force . 20
5.5 Suitability for use on fire/smoke doors . 21
5.6 Safety. 21
5.7 Corrosion resistance and temperature . 21
5.7.1 Corrosion resistance . 21
5.7.2 Operation at extremes of temperature . 21
5.8 Security – Attack resistance . 21
5.8.1  Locking . 21
5.8.2 Torque resistance of knob . 21
5.8.3 Requirements for side load . 22
5.8.4 Deadbolt projection . 22
5.8.5 Resistance to forcing in the unlocking direction (disengaging load) . 23
5.8.6 Requirements for pulling of anti separation bolt . 25
prEN 12209:2011 (E)
5.8.7 Requirements for forcing of locating device in sliding door lock . 26
5.8.8 Strong key attack on lever locks . 27
5.8.9 Torque resistance of lockable follower . 28
5.8.10. Security requirements of the component locking plate . 28
5.9 Key identification requirements of lever locks . 32
5.9.1 Minimum number of detaining elements . 32
5.9.2 Minimum number of effective differs . 32
5.9.3 Differing steps height on key . 32
5.9.4 Non-interpassing of keys with just one interval differ . 32
5.9.5 Coding protection . 32
6.  Test methods . 33
6.1  General . 33
6.1.1 Test door . 34
6.1.2 Dangerous substances. 34
6.1.3 Return force of latch bolt . 34
6.1.4  Strength of key . 34
6.1.5 Strength of bolt action. . 34
6.1.6 Minimum follower restoring torque . 35
6.1.7 Protection against removal from door . 35
6.2 Category of use . 35
6.2.1 Resistance to side load on latch bolt . 35
6.2.2 Torque to operate deadbolt or latch bolt . 37
6.2.3 Strength of follower stops. 37
6.2.4 Torque resistance of lockable follower . 37
6.3 Durability . 38
6.3.1 Durability of latch action . 38
6.3.1.2 Durability of latch action with force applied . 39
6.3.2 Durability of deadbolt mechanism . 40
6.3.3 Durability of locking snib mechanism . 41
6.4 Door mass and closing force . 41
6.4.1 Door mass . 41
6.4.2 Door closing force . 41
6.5 Suitability for use on fire/smoke doors . 42
6.6 Saftey. 42
6.7 Corrosion resistance and temperature . 42
6.7.1 Corrosion resistance . 42
6.7.2 Operation at extremes of temperature . 42
6.8 Security . 43
6.8.1 Key operation and locking . 43
6.8.2 Torque resistance of knob . 44
6.8.3 Resistance to side load . 44
6.8.4 Deadbolt projection . 46
6.8.5 Resistance to forcing in the unlocking direction (disengaging load) . 46
6.8.6 Resistance to pulling of anti separation bolt . 47
6.8.9 Test for security requirements for the locking plate . 48
6.9 Key related security for lever locks . 49
6.9.1 Detaining elements . 49
6.9.2 Effective differs . 49
6.9.3 Differing step heights on key . 49
6.9.4 Non-interpassing of keys with just one interval differ . 49
6.9.5 Coding protection . 49
7 Marking . 50
prEN 12209:2011 (E)
8 Evaluation of conformity . 51
8.1 Initial type test . 51
8.1.1 General . 51
8.1.2  Characteristics . 52
8.1.3  Use of historical data . 52
8.2 Sampling, testing and conformity criteria . 52
8.3  Factory production control . 52
8.3.1  General . 52
8.3.2 Documentation . 53
8.3.3  Traceability and marking . 53
8.3.4  Non conforming products . 54
8.3.5  Corrective action . 54
8.3.6  Handling, storage and packaging . 54
8.3.7 Equipment . 54
8.3.8 Design process . 54
8.3.9 Raw materials and components . 54
8.3.10 In-process control . 55
8.3.11 Unit checks during manufacture . 55
8.4 Periodic testing . 57
8.5 Annual testing . 57
Annex A (normative) Locks and locking plates for use on fire / smoke doors . 58
Annex B (normative) Test sampling and sequencing for locks and latches . 60
Annex C (Normative) Product information . 63
Annex ZA (informative) Clauses of this European Standard addressing the provisions of
the EU Construction Products Directive (89/106/EEC) . 64
Bibliography . 70

prEN 12209:2011 (E)
Foreword
This document (prEN 12209:2011) has been prepared by Technical Committee CEN/TC 33 “Doors,
windows, shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12209:2003.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
Annexes A, B and C are normative.
This document includes a Bibliography.
This European Standard is one of a series of European Standards dedicated to building hardware
products.
Complementing this European Standard is a European Standard for electromechanically operated
locks and locking plates (EN 14846) and a draft European Standard for mechanically operated multi-
point locks (prEN 15685).
The performance tests incorporated in this standard are considered to be reproducible and as such
will provide a consistent and objective assessment of the performance of these products throughout
CEN Member States.
prEN 12209:2011 (E)
Introduction
The performance tests incorporated in this standard are considered to be reproducible and as such
will provide a consistent and objective assessment of the performance of these products throughout
CEN Member States
Locks and their locking plates used in fire resistant and/or smoke control door assemblies require
additional attributes in order to conform to the Essential Requirement "Safety in case of fire" either
independently or as a part of a complete assembly. Additional requirements for locks and their locking
plates used on fire resistant and/or smoke control door assemblies are specified in annex A.
This standard does not specify any particular design or installation.
The performance of electrically operated locks and locking plates is tested in accordance with
EN 14846.
NOTE 1 A lock conforming to this standard can at the same time be part of an exit device in accordance with EN
179 or EN 1125.
NOTE 2 Locks for use in specialist applications e.g. explosive atmospheres may be subject to additional
requirements.
prEN 12209:2011 (E)
1 Scope
This European Standard specifies requirements and test methods for durability, strength, security,
and functionality of mechanically operated locks and latches and their locking plates for use on doors,
in buildings.
This European standard covers locks and their locking plates which are either manufactured and
placed on the market in their entirety by one producer or produced by more than one producer and
subsequently placed on the marked separately or as a kit in a single transaction.
This standard specifies locks and locking systems intended for use in different environmental and
security conditions, thus necessitating different grades.
This European standard does not specify Multipoint locks or their locking plates which are specified by
prEN 15685.
This standard specifies the dimensions and properties required for security and for the assessment of
smoke door suitability.
This European standard is not applicable to cylinders, handles, locks for windows, padlocks, locks for
safes, furniture locks or prison locks.
Assessment of the contribution of the product to the fire resistance of specific fire/smoke resisting
door assemblies is beyond the scope of this European Standard.
2 Normative references
The following referenced documents support the application of this document. For dated references,
only the edition quoted applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
EN 1634-1, Fire resistance tests for door and shutter assemblies - Part 1: Fire doors and shutters.
EN 1634-3, Fire resistance tests for door and shutter assemblies - Part 3: Smoke control doors and
shutters
EN 1670:2007, Building hardware — Corrosion resistance — Requirements and test methods.
ISO 10899, High-speed steel two-flute twist drills — Technical specifications.
EN 13501-1, Fire classification of construction products and building elements – Part 1: Classification
using data from reaction to fire tests
ISO 9001:2008; Quality Management Systems Requirements
3 Terms, definitions, symbols and units
3.1 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
prEN 12209:2011 (E)
3.1.1
bored latch set
fastener that comprises an integral assembly of door furniture with a tubular latch
3.1.2
bored lock set
fastener that comprises an integral assembly of door furniture with a tubular lock
3.1.3
case
part of a lock or latch in which the lock mechanism and/or latch action is housed
3.1.4
cylinder
device, usually separate from but engaging with its associated lock or latch, that contains the
parts operated by the key
3.1.5
cylinder lock
lock in which the lock mechanism is operated by one or more cylinders
3.1.6
deadbolt
movable part of a lock that usually engages a component fixed to a frame, and withdraws into a
lockcase that is operated at least in one direction by a key, handle and/or thumb turn
3.1.7
detaining element
part of a movable member which is moved by a key into a pre-determined position for the bolt to
be able to move into an opening position
3.1.8
differ
variation between lock mechanism of similar design, achieved by the detaining elements, which
enables each lock to be operated only by its own key
3.1.9
effective differ
difference between lock or key recognition systems of similar design achieved only by the
detaining elements which allows each lock or key recognition system to be operated only by its
own key. The number of effective differs is equal to the number of theoretical differs after
deduction of the differs suppressed by the manufacturer due to technical constraints
3.1.10
follower
part of a lock that operates the bolt or bolts when turned by a spindle
3.1.11
forend
part of a case through which the lock is fixed to the door and through which the latch bolt and/or
deadbolt pass
3.1.12
key
device that is removable and portable and is used to operate the lock or latch
prEN 12209:2011 (E)
3.1.13
latch
self engaging fastener which secures a movable component (e.g. door) in a closed position and
which can be released by hand
3.1.14
latch action
arrangement and performance of the constituent parts that operate a latch bolt
3.1.15
latch bolt
spring-loaded movable part of a lock that usually engages a component fixed to a frame, and
withdraws into a lockcase that automatically engages a locking plate to keep the door in its closed
position
3.1.16
lock
fastener which secures a movable component in a closed position within an opening and which is
operated by a key or other device
3.1.17
lock family
Group of products that are of the same type
3.1.18
lock type
Product variant sharing common performance characteristics
3.1.19
lock model
Product variant featuring a particular design
3.1.20
locking plate
component, fixed to a frame to engage a bolt, or bolts
NOTE Alternative terms for this are strike plate, keep or staple.
3.1.21
locking snib
device, usually in the form of a small lever or knob, which can be operated to prevent the bolt
from being thrown or withdrawn, or to change the function of a lock or latch
3.1.22
lock mechanism
constituent parts of a lock that operate the deadbolt and, where required, provide the differs
3.1.23
multi-point lock
lock comprising more than one locking point between door leaf and frame, inter-linked and
centrally controlled
3.1.24
deadlocking
action of moving a bolt to a thrown position where pushing back of the bolt is positively prevented
prEN 12209:2011 (E)
3.1.25
Manual deadlocking
dead locking where movement of the bolt is by key or handle/thumb turn
3.1.26
Secure manual deadlocking
manual deadlocking in which continuous light pressure is applied to the bolt in the direction of bolt
withdrawal
3.1.27
Automatic deadlocking bolt
Dead locking where bolt movement is self-propelled, and is triggered by the proximity of the
locking plate
3.1.28
shared latch action
Latch action in which withdrawal of the latch bolt is by means of a handle and key.
3.1.29
night latch action
Latch action in which withdrawal of the latch bolt from the outside is only by means of a key, and
from the inside only by means of a handle or knob.

prEN 12209:2011 (E)
4 Classification
4.1 General
4.1.1 For the purpose of this European Standard, mechanically operated locks and latches shall be
classified in accordance with the seven character classification system described in 4.2.1 to 4.2.8.
Locking plates intended to be sold separately from the lock or latch may be coded accordingly using
the same classification system but with grades only in those categories that are relevant to locking
plates.
4.1.2 All locks regardless of classification shall conform to 5.1.1 to 5.1.6 and where applicable 5.1.7.
4.2 Classification for mechanically operated locks and locking plates
Table 1 — Classification
1 2 3 4 5 6 7 8
Durability and Door mass Suitability for use Corrosion
Category of Security and Key
load on latch and closing on fire / smoke Safety resistance and
use drill resistance identification
bolt force doors temperature
4.2.1 Category of use (first digit)
Three grades are identified in accordance with requirements stated in 5.2.
 grade 1: for use by people with a high incentive to exercise care and with a small chance of
misuse, e.g. residential doors.
 grade 2: for use by people with some incentive to exercise care but where there is some chance
of misuse, e.g. office doors.
 grade 3: for use by the public where there is little incentive to exercise care and where there is a
high chance of misuse, e.g. doors in public buildings.
4.2.2 Durability (second digit)
Thirteen grades of durability and load (F3) on latch bolt are identified in accordance with 5.3.1.
 grade A:  50 000 test cycles; no load on latch bolt, or for locks without latchbolt;
 grade B: 100 000 test cycles; no load on latch bolt; or for locks without latchbolt
 grade C: 200 000 test cycles; no load on latch bolt; or for locks without latchbolt
 grade D: 500.000 test cycles; no load on latch bolt; or for locks without latchbolt;
 grade L: 100 000 test cycles; 25 N load on latch bolt;
prEN 12209:2011 (E)
 grade M: 200 000 test cycles; 25 N load on latch bolt;
 grade N: 500 000 test cycles; 25 N load on latch bolt;
 grade R: 100 000 test cycles; 50 N load on latch bolt;
 grade S: 200 000 test cycles; 50 N load on latch bolt;
 grade T: 500 000 test cycles; 50 N load on latch bolt;
 grade W: 100 000 test cycles; 120 N load on latch bolt;
 grade X: 200 000 test cycles; 120 N load on latch bolt;
 grade Z: 500 000 test cycles 120 N load on latch bolt
The above information relates to latch action only. Corresponding durability requirements based on
number of cycles apply to the dead bolt and snib mechanisms.
4.2.3 Door mass and closing force (third digit)
Ten grades of door mass and closing force (F9) are identified in accordance with 5.4.
 grade 0: Locks without a latchbolt (latching function)
The following grades apply for locks with latch function, automatically operated bolts or similar
 grade 1:  up to 100 kg door mass;  50 N maximum closing force;
 grade 2: up to 200 kg door mass;  50 N maximum closing force;
 grade 3: above 200 kg door mass as
specified by the manufacturer; 50 N maximum closing force;
 grade 4: up to 100 kg door mass;  25 N maximum closing force;
 grade 5: up to 200 kg door mass;  25 N maximum closing force;
 grade 6: above 200 kg door mass as
specified by the manufacturer; 25 N maximum closing force;
 grade 7: up to 100 kg door mass;  15 N maximum closing force;
 grade 8:  up to 200 kg door mass;  15 N maximum closing force;
 grade 9: above 200 kg door mass as
specified by the manufacturer; 15 N maximum closing force.
prEN 12209:2011 (E)
4.2.4 Suitability for use on fire/smoke doors (fourth digit)
Four categories are identified:
 Grade 0: not approved for use on fire/smoke door assemblies;
 Grade A: for use on smoke door assemblies based on a test in accordance with EN 1634-3
were the lock contributes to the integrity as described in Annex A
 Grade B: for use on smoke and fire door assemblies based on a test in accordance with EN
1634-1 or EN 1634-2 were the lock contributes to the integrity as described in Annex
A;
 Grade N: for use on smoke and fire door assemblies based on tests were the lock does not
contribute to keeping the door in a closed position during the fire/smoke test as
described in Annex A;
4.2.5 Safety ( fifth digit)
Only one grade of safety is identified
- Grade 0: no safety requirement
Note: See EN 179 and EB 1125 for locks, latches and locking plates that are part of exit devices for
use on emergency or panic exit doors
4.2.6 Corrosion resistance and temperature (sixth digit)
Eight grades of corrosion resistance and temperature requirement are identified.
 grade 0: no defined corrosion resistance; no temperature requirement;
 grade A: low corrosion resistance (24 h); no temperature requirement;
 grade B: moderate corrosion resistance (48 h); no temperature requirement;
 grade C: high corrosion resistance (96 h); no temperature requirement;
 grade D: very high corrosion resistance (240 h); no temperature requirement;
 grade E: moderate corrosion resistance (48 h); temperature requirement: from –10 °C to +55 °C;
 grade F: high corrosion resistance (96 h); temperature requirement: from –10 °C to +55 °C;
 grade G: very high corrosion resistance (240 h); temperature requirement: from –10 °C to +55 °C.
4.2.7 Security and drill resistance (seventh digit)
Eight grades of security and drill resistance related to the side of the lockcase that is assumed to
resist an attack are identified in Table 5
 grade 0: No security requirement
 grade 1:  Minimum security and no drill resistance;
 grade 2:  Low security and no drill resistance;
prEN 12209:2011 (E)
 grade 3:  Medium security and no drill resistance;
 grade 4:  High security and no drill resistance;
 grade 5:  High security with drill resistance;
 grade 6:  Very high security and no drill resistance;
 grade 7:  Very high security with drill resistance.
4.2.8 Key identification of lever locks (eight digit)
Nine grades are identified from 0 to H in accordance with 5.6 and table 4.
 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;
 grade F:  Minimum seven detaining elements;
 grade G:  Minimum seven detaining elements, extended number of effective differs;
 grade H:  Minimum eight detaining elements, extended number of effective differs.
4.2.9 Example for classification of locks, latches and their locking plates
2 M 5 B E 5 0
This indicates a mechanically operated lock and locking plate for use in an application where people
have an incentive to exercise care, able to withstand a durability of 200.000 cycles with a 25 N load
on the latch bolt, on a door with a mass of up to 200 kg and a maximum closing force of 25 N, it also
indicates a lock for use on a fire/smoke resisting door assembly, no requirements for key identification,
0 0
moderate corrosion resistance in temperatures ranging from – 10 C to + 55 C, with high security and
drill resistance.
prEN 12209:2011 (E)
5 Requirements
5.1 General
5.1.1 Dangerous substances
Materials in products shall not release any dangerous substances in excess of the maximum levels
specified in relevant European Standards for the material.
Check in accordance with 6.1.2
5.1.2 Return force of latch bolt
When tested in accordance with 6.1.3, the return force of the latch bolt shall not be less than
F2 = 2.5 N
Figure 1 - Return force of latch bolt
5.1.3 Product information requirements
A lock or locking plate manufactured in accordance with this European standard shall include clear
and detailed instructions for its installation and maintenance. These instructions shall contain:
a) The limitation of the products intended use, the limitation of the door mass and door dimension,
temperature range and the field of door application. Supported or unsupported tested for
disengaged load figure 11 and figure 12, and for side load figure 22 and figure 23.
b) Information to ensure that the product can achieve the performance requirements of this
document, including any restriction in use, for example conditions under which the product could
be rendered inoperable. In particular it shall be clearly stated which locking plates are suitable in
combination with the lock and vice versa.
c) Information to ensure that the product continues to achieve the performance requirements in this
document for reasonable economic working life.
d) Declaration of the maximum side load (25 N, 50 N or 120 N) against which key or handle
operation can be performed, at the various grades indicated in Table 2.
e) The limitation of the product’s intended use regarding temperature range.
prEN 12209:2011 (E)
f) A list of the components which are tested and are approved to be suitable for use on fire/smoke
doors and the classification in accordance with EN 13501-1.
5.1.4 Strength of key
When tested in accordance with 6.1.4, the key shall resist a torque of 2.5 Nm.
The key shall operate the lock correctly after this test and conform to the requirements of 5.2.2.
NOTE This requirement is not applicable to cylinder keys which have to conform to EN 1303.
5.1.5 Strength of bolt actions
When tested in accordance with 6.1.5, the dead bolt components shall resist a torque of 30 Nm and
the lach bolt components shall resist a torque of 20 Nm.

The lock shall conform to 5.2.2 after this test
5.1.6 Minimum follower restoring torque
The lock shall have a minimum restoring torque on the follower of 0.8 Nm, unless the lock is declared
to be intended for use with spring supported furniture. The torque shall be tested in accordance with
6.1.6
5.1.7 Protection against removal from door
When checked in accordance with 6.1.7. The product shall be designed in such way that those parts
which contribute to its burglar resistance cannot be removed:
a) from the outside of the door when door is closed and locked;
b) from the inside of the door when door is closed and locked, using any of the tools shown in figure
2., if security is necessary from the inside.

Figure 2 - Screw heads not allowed in security from inside

5.2 Category of use
5.2.1 Resistance to side load on latch bolt.
When tested in accordance with 6.2.1, the lock or latch shall resist a side load of F1 specified in table
2.
The lock shall conform to 5.1.2 and 5.2.2 after this test.

prEN 12209:2011 (E)
Figure 3 Resistance to side load on latch bolt
5.2.2 Torque to operate deadbolt or latch bolt
5.2.2.1 The lock shall conform to 5.2.2.2 to 5.2.2.3 when tested in accordance with 6.2.2.
Latch operation shall not be affected as a result of this test.
5.2.2.2 The torque on the key to operate the deadbolt or latchbolt without side load shall not exceed
M1 in accordance with table 2
Figure 4 Torque to operate deadbolt or latch bolt with key

5.2.2.3 The torque on the follower to operate the deadbolt or latchbolt without sideload shall not
exceed M2 in accordance with table 2.

prEN 12209:2011 (E)
Figure 5 - Torque to operate deadbolt or latch bolt via the follower
5.2.3 Strength of follower stops
When tested in accordance with 6.2.3, the latch components and travel limit stops shall resist a torque
M3 as specified in table 2.
The latch action shall function correctly after this test, conforming to the requirements of 5.2.2.

Figure 6 - Strength of follower stops
5.2.4 Torque resistance for lockable deadbolt operation by handle/knob
5.2.4.1 Torque resistance of lockable follower.
When tested in accordance with 6.2.4, the lock shall not open with torque ≥ M4 (See table 2). The
lock shall function correctly after the test and conform to the requirements in 5.2.2.
prEN 12209:2011 (E)
Figure 7 - Torque resistance of lockable follower
5.2.4.2 Torque resistance of Rim lock with integral lockable handle / knob
When tested in accordance with 6.2.4 the locked handle or knob (where applicable) shall not open
with a torque > M4, where M4 (Nm) = 0.4 (kN) x maximum radius in mm of the handle / knob.
The lock shall function correctly after this test and conform to the requirements in 5.2.2

Table 2 — Category of use
Test
Clause Requirement Grade 1 Grade 2 Grade 3 Unit
para
meter
5.2.1 Resistance to side load on latch F 1 2 3 3 kN
Maximum torque to operate dead bolt or
5.2.2.2 M 1 1.2 1.0 0.8 Nm
latch bolt without side load by key
Ma
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