This document applies to brake block holders and brake block keys included in brake rigging installed on railway vehicles.
Brake block holders and brake block keys made of non-ferrous materials are not within the scope of this document.
This document contains requirements for design and evaluation testing of conformity.
The requirements contained in this document apply to the brake block holders and brake block keys fitted on railway vehicles with brake blocks whose dimensions are in accordance with the requirements given in EN 16452.