This European Standard applies to cylinders and their keys for such locks as are normally used in buildings and are designed to be used with cylinders, where the locks have an operational torque of maximum 1,2 Nm.

This European Standard specifies performance and other requirements for the strength, security, durability, performance and corrosion resistance of cylinders and their original keys. It establishes one category of use, three grades of durability, three grades for fire and four grades corrosion resistance all based on performance tests as well as six grades of key related security based on design requirements and five grades on performance tests that simulate attack.

This European Standard includes tests of satisfactory operation at a range of temperatures. It specifies test methods to be used on cylinders and their protective measures linked with these cylinders and recommended by the manufacturer.

Corrosion resistance is specified by reference to the requirements of EN 1670 on corrosion resistance of building hardware.

The suitability of cylinders for use on fire or smoke-door assemblies is determined by fire performance tests conducted in addition to the performance testing required by this standard. Since suitability for use on fire doors is not essential in every situation the manufacturer has the option to state if the cylinder conforms to these additional requirements or not. If so claimed, cylinders will comply with the requirements in Annex A.

On occasions there may be a need for additional functions within the design of the cylinder. Purchasers should satisfy themselves that the products are suitable for their intended use.

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PDF Pages	PDF Title
4	Contents Page
6	Foreword
7	Introduction
8	1 Scope 2 Normative references
9	3 Terms and definitions
10	4 Requirements 4.1 General 4.2 Category of use — Key strength 4.3 Durability Table 1 — Number of cycles 4.4 Door mass 4.5 Suitability for use on fire resistant / smoke control doors 4.6 Safety 4.7 Corrosion resistance and operation at extreme temperatures 4.7.1 Corrosion resistance
11	4.7.2 Operation at extreme temperatures 4.8 Key related security 4.8.1 Minimum number of effective differs 4.8.2 Minimum number of movable detainers 4.8.3 Maximum number of identical steps 4.8.4 Direct coding on key 4.8.5 Operation of security mechanism (inter-passing)
12	4.8.6 Torque resistance of plug/cylinder relevant to key related security Table 2 — Summary key related security 4.9 Attack resistance 4.9.1 General 4.9.2 Resistance to attack by drilling
13	4.9.3 Resistance to attack by chisel 4.9.4 Resistance to attack by twisting 4.9.5 Resistance to attack by plug / cylinder extraction 4.9.6 Torque resistance of plug/cylinder relevant to attack resistance
14	Table 3 — Summary attack resistance 5 Test – General and test apparatus 5.1 General
15	5.2 Test rigs and apparatus 6 Test methods – procedures 6.1 General 6.2 Key strength
16	Figure 1 — Metal fixture for testing key strength, operation of security mechanism and torque resistance of plug and or cylinder 6.3 Durability tests — Standard test cycles
17	Figure 2 — Fixture for durability
18	6.4 Door mass 6.5 Suitable for use on fire resistance / smoke control doors 6.6 Safety 6.7 Corrosion resistance and test of operation at extreme temperatures 6.7.1 Corrosion resistance 6.7.2 Test of operation at extreme temperatures 6.8 Key related Security 6.8.1 Minimum numbers of effective differs
19	6.8.2 Minimum number of movable detainer 6.8.3 Maximum number of identical steps 6.8.4 Direct coding on key 6.8.5 Operation of the security mechanism 6.8.6 Torque resistance of plug and/or cylinder 6.9 Attack resistance 6.9.1 Resistance to drilling
20	Figure 3 — Test apparatus for resistance to drilling 6.9.2 Resistance to attack by chisel
21	Figure 4 — Test apparatus for attack by chisel 6.9.3 Resistance to attack by twisting
22	6.9.4 Resistance to attack by plug/cylinder extraction
24	Figure 5 — Fixture for resistance to attack by plug/cylinder extraction “Euro profile”
25	Figure 6 — Fixture for resistance to attack by plug/cylinder extraction “Scandinavian cylinder”
26	Figure 7 — Fixture for resistance to attack by plug/cylinder extraction “Screw in or cam cylinder” 6.9.5 Torque resistance of plug/cylinder relevant to attack resistance
27	7 Classification 7.1 General Table 4 — Classification 7.2 Category of use (1st digit) 7.3 Durability (2nd digit) 7.4 Door mass (3rd digit) 7.5 Suitable for use on fire resistant / smoke control doors (4th digit) 7.6 Safety (5th digit) 7.7 Corrosion resistance and temperature (6th digit)
28	7.8 Key related security (7th digit) 7.9 Attack resistance (8th digit) 8 Marking
29	Annex A (normative) Cylinders suitable for use on fire resistant / smoke control doors
30	Annex B (informative) Tables of test sequence Table B.1 — Test sequence
31	Annex C (informative) Product information
32	Annex D (informative) Manufacturer’s declaration of compliance
34	Annex E (informative) Comparison table between EN 1303:2005 and EN 1303:2015 Table E.1
35	Bibliography

Status	Under Review
Pages	38
Publication Date	2015-06-30
ISBN	978 0 580 79117 8
Standard Number	BS EN 1303:2015
Title	Building hardware. Cylinders for locks. Requirements and test methods
Identical National Standard Of	EN 1303:2015
Replaces	BS EN 1303:2005
Descriptors	Ironmongery (buildings), Corrosion resistance, Strength of materials, Classification systems, Fire resistance, Performance, Corrosion tests, Locks, Environment (working), Acceptance (approval), Approval testing, Grades (quality), Marking, Torque, Thermal testing, Lock cylinders, Mechanical testing, Endurance testing, Keys, Crime prevention devices, Performance testing, Life (durability), Heating tests
Publisher	BSI
Committee	B/538/4
ICS Codes	91.190 - Building accessories


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BS EN 1303:2015

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