DS EN 14587-2:2009 Railway Applications - Track - Flash Butt Welding Of Rails - Part 2: New R220, R260, R260mn And R350ht Grade Rails By Mobile Welding Machines At Sites Other Than A Fixed Plant Provides requirements for the approval of a welding process by a MFBW machine at sites other than fixed plant, as well as the welding contractor together with the requirements for subsequent welding p