Division Testing

Ageing against UV radiation and increased temperature, wear and tear, mechanical stability and childproof function must be subject to specific testing methods. Products with flexible parts, such as chains, wires and ropes, must also be tested with a stamping method. The devices must not break and must be fully functional after the test.

The testing methods must be adapted, as appropriate, to test the performance of the locking devices for all types of windows (e.g. ‘French’ or ‘casement windows’, sash windows and sliding windows).

Forces in the tests shall be applied in the most onerous directions and must be measured with an uncertainty of measurement not exceeding ± 1 %, and displacements with an uncertainty of measurement not exceeding ± 1 mm.