This European Standard was approved by CEN on 24 January 2000. Amendment Ai was approved by CEN on 7 September 2002. The European Standard EN 12492:2000 + A1:2002 has status of the Standard of Republic Serbia. 30 p. Mountaineers helmets are fitted with a retention system to retain the helmet on the head. However, there may be a foreseeable risk that helmets could become trapped and thereby cause a risk of strangulation. This European Standard specifies safety requirements and test methods for safety helmets for- use in mountaineering