scope:

This European Standard defines the acceptance process to befollowed by vehicles that are operated in trains capable ofgenerating high longitudinal forces and that are susceptible, as aresult of their design, to derailment as a result of beingsubjected to these forces. This European Standard applies to thefollowing types of freight wagons equipped with standard ends asdefined in this EN: - single wagons; - permanently coupled unitswith side buffers and screw couplers between the vehicles; -permanently coupled units with diagonal buffers with screw couplersbetween the vehicles; - articulated units with three 2-axle bogies;- low-floor wagons with eight or more axles (e.g. rolling roadwagon ). The following vehicles are not currently in the scope ofthis European Standard: - wagons that are not subjected toextensive longitudinal compressive forces due to their operationalenvironment (as train composition, braking regime, track layout); -wagons with automatic couplers ); - wagons with 3-axle bogies ); -permanently coupled units with a bar coupler between the vehicles); - articulated wagons with more than three 2-axle bogies.Acceptance criteria and test conditions as well as conditions forthe dispensation from tests are defined in this European Standard.This document applies principally to wagons which operate withoutrestriction on standard gauge tracks in Europe (1 435 mm). NOTE Theinfluence on railway systems using other gauges is not sufficientlyunderstood to extend the scope of this document to gauges otherthan standard.