BS EN 15496:2008 pdf free download – Cycles一Requirements and test methods for cycle locks.
6.3 Key strength
6.3.1 Requirement
When tested in accordance with 6.3.2, the key shall not break under the applied maximum torque of 2 Nm.
After the test, the key shall be able to be removed from the lock and re-used to operate the same lock.
6.3.2 Test method
Insert the correct key fully in the lock, blocked from rotation, and apply a torque of at least 2 Nm.
6.4 Durability
6.4.1 Requirement
When tested by the method described in 6.4.2 the lock shall retain its normal function.
6.4.2 Test method
Open and close the lock 5 000 times with the correct key or combination. Withdraw and insert any key after
each locking.
6.5 Strength
6.5.1 General
If a lock is of a type that should be subjected to a certain type of test, but is designed in such a way that it is impossible to apply the particular test, the lock shall be exempted from that test. Such an exemption shall be stated in the test report.
Strength tests shall, unless otherwise stated, be performed only with directions and positions of forces that can be used in practice during the theft of a cycle. Of these directions and positions, those which the test engineer considers most likely to open the lock shall be used.
6.5.2 Requirement
When tested by the methods described in 6.5.3, 6.5.4, 6.5.5, 6.5.6, and 6.5.7 the lock shall not break. When tested by the method described in 6.5.8, the essential part of the locking mechanism shall not completely detach from the lock.
6.5.3 Tensile strength — Test method
6.5.3.1 General
Permanently mounted cycle locks with a maximum inner dimension less than 150 mm shall not be subjected
to the tests in 6.5.3.2.
6.5.3.2 U-shackle locks
6.5.3.2.1 Tensile strength in the direction of opening
Secure the body of the lock in a mounting device and ensure that the mounting device does not affect the test result.
Gradually apply a force F, as shown in Figure 1, to the lock in the opening direction until the lock breaks or until a force of 30 kN is achieved and retained for I mm, whichever occurs first.
6.5.4 Torsional strength — Test methods
6.5.4.1 Exemption of certain locks
Permanently mounted cycle locks are exempted from the tests specified in 6.5.4.
For other locks than permanently mounted cycle locks the tests in 6.5.4 shall only be carried out if the attacks that the tests resemble can occur in practice during the theft of a cycle. The assessment of whether the attacks can occur in practice shall be made only with tools specified in the list of tools in Table 2 and Table 3.
The rationale for exempting locks from certain tests shall be given in the test-report.
6.5.4.2 U-shackle locks
Secure the lock and shackle according to Figure 4.
Gradually apply a torque, as shown in Figure 4, to the lock until the lock or shackle breaks or until a torque of 500 Nm is achieved and retained for 1 mm, whichever occurs first.
For application of the torque, use devices, as shown in Figure 4, with a diameter of 30 mm.