 BS EN 1303:1998
Building hardware
Cylinders for locks
Requirements and test methods
Classifies cylinders using a 7 digit coding system.
Each digit refers to a particular feature of the product measured against the standard's performance requirements.
- Digit 1 - Category of use
- grade 1: Suitable for use at extremes of temperature -20°C to +80°C.
- Digit 2 - Durability
- grade 4: 25 000 cycles.
- grade 5: 50 000 cycles.
- grade 6: 100 000 cycles.
- Digit 3 - Door mass
No requirement.
- Digit 4 - Fire resistance
- grade 0: No requirement
- grade 1: Cylinders shall be fire tested in accordance with current fire test requirements of EN 1634-1.
- Digit 5 - Safety
No requirement.
- Digit 6 - Corrosion resistance
- grade 0: No requirement.
- grade 1: Conforms to grade 3 of BS EN 1670 as a minimum.
- Digit 7 - Security
Cylinders will be classified in grades 1 to 5, where 5 is the highest. The grade of security can differ from one side of a double cylinder to the other.
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Grades |
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Min. no. of effective differs |
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Min. no. of movable pins |
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Direct coding on key |
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Max. net drill time (mins.) |
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Total drill test time (mins.) |
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*Chisel attack resistance
(No. of blows) |
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Cylinder extraction resistance (kN) |
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*Cylinder torque resistance (Nm) |
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Note:
To gain chisel or torque resistance it is important that either, the correct length of cylinder is used to be flush with the door/handle face or a high security rose is used to cover any cylinder protrusion.
The following marking denotes a cylinder meeting the required category of use, grade 6 durability (100 000 cycles) with no fire resistant requirement, grade 1 corrosion resistance and grade 5 security.
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UNION Cylinders successfully type-tested for conformity to
BS EN 1303:1998
UNION KESO Omega Security
Grade 5
UNION KESO 2000S Security
Grade 4
D-TEC Security
Grade 5
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