This European Standard specifies requirements for measuring freight wagons with 2 wheelsets. This ensures that the measuring processes are applied in accordance with uniform criteria. It applies to new and modified freight wagons with 2 wheelsets. Provisions going beyond the scope of these requirements ought to be agreed upon by the contracting parties involved. The measuring processes relate to the whole or parts of the underframes with or without add-ons if the geometrical structure does not permit anything else. Where appropriate, other measuring methods not specified here are necessary and ought to be specified in each individual case.