Guide to BS EN 1303:2015
Guide to BS EN1303:2015
The security of any door assembly is a combination of many factors including the door construction and physical environment surrounding the door. However, the cylinder is probably the most vulnerable element in the assembly and is therefore subject to severe requirements of resistance to physical attack and other aspects of security such as key control.
BS EN 1303:2015 is the European Standard which establishes assessment and test criteria for a cylinder to quantify its resistance to physical attack, durability and key security. BS EN 1303:2015 classifies cylinders for locks using an 8 digit coding system. Features assessed include durability, fire resistance, key related security and attack resistance. The resulting 8 digit code can be used to directly compare the performance of one cylinder range against another.
|DIGIT 1||DIGIT 2||DIGIT 3||DIGIT 4||DIGIT 5||DIGIT 6||DIGIT 7||DIGIT 8|
Digit 1 - Category of Use:
The key shall not break under the applied torque of 2,5 Nm. After the test, the key shall be capable of being removed from the cylinder and re-used to operatethe same cylinder with a torque not exceeding 1,5 Nm.
Digit 2 - Durability: 3 Grades are identified according to the number of test cycles achieved:
Grade 4: 25,000 Cycles
Grade 5: 50,000 Cycles
Grade 6: 100,000 Cycles
Digit 3 - Test Door Mass:
Digit 4 - Fire Resistance: Three grades of suitability for use on fire resistant/smoke controlled doors are identified:
Grade 0: Not approved for use on fire resistant/smoke control door assemblies;
Grade A: Suitable for use on smoke control door assemblies;
Grade B: Suitable for use on fire resistant and smoke control doors.
For more info see Annex A.:
Digit 5 - Safety
Digit 6 - Corrosion and Temperature Resistance: Four grades of corrosion resistance and temperature requirement are identified:
Grade 0: No corrosion requirement; no temperature requirement;
Grade A: High corrosion resistance; no temperature requirement;
Grade B:No corrosion requirement; temperature requirement: from -25°C to + 65°C;
Grade C:High corrosion resistance; temperature requirement: from -25°C to + 65°C.
Note: It shall be possible to operate the cylinder with its proper key using a maximum torque of 1,5 Nm after tested according to grade 3 (96 hrs) of EN 1670. This corrosion test shall apply to the functionality only. No distinction is made between the inside and the outside of cylinder and/or door. It shall be possible to operate the cylinder with its proper key using a maximum torque of 1,5 Nm at both -25°C and + 65°C.
Digit 7 - Key Related Security: Six grades are identified in accordance with table below:
Tested before the durability test. a
Tested before and after the durability test. b
Rounded to the lower integer. c
|4.8.1||Min. number of effective differs||6.8.1||-||100||300||15000||30000||30000||100000||No.|
|4.8.2||Min. number of movable detainers||6.8.2||-||2||3||5||5||6||6||No.|
|4.8.3||Max. number of identical steps||6.8.3||-||100||70||60||60||60||50||%|
|Max. number of identical adjacent steps||-||2||2||2||2||2||No.|
|4.8.4||Direct coding on key||6.8.4||-||-||-||No||No||No||No||-|
|4.8.5||Operation of security mechanism (interpassing)||6.8.5||Torque||1,5a||1,5a||1,5a||1,5b||1,5b||1,5b||Nm|
|4.8.6||Torque resistance of plug/cylinder||6.8.6||Torque||2,5||5||15||15||15||15||Nm|
Digit 8 - Attack Resistance: Five grades of resistance against drilling and mechanical attack are identified in accordance with table below:
See requirement of key related security 4.8.6 a
|4.9.2||Resistance to drilling||6.9.1||Time
|4.9.3||Resistance to attack by chisel||6.9.2||Blows||-||30||40||30||40||No.|
|4.9.4||Resistance to attack by twisting||6.9.3||Twists||-||20||30||20||30||No.|
|4.9.5||Resistance to attack by plug/
|4.9.6||Torque resistance of plug/cylinder||6.9.5||Torque||-||20||30||20||30||Nm|