The European Standard EN 1303:2015 evaluates and tests lock cylinders for durability, fire resistance, attack resistance, and more. It classifies products via an 8-digit coding system, where each digit represents specific performance characteristics against standardized requirements. This coding sys
EN1906 Grade 4 lever handle, category of use: high frequency of use on doors which are subject to frequent violent usage, e.g. football stadiums, offshore installations (oil rigs), etc.
