Welding works are carried-out in accordance with the following technical guidelines and standards:
- SIST EN 12542: static welded steel cylindrical tanks, serially produced for the storage of Liquefied Petroleum Gas (LPG) and for installation above ground
- SIST EN 12732: gas supply systems, welding of steel pipelines
- SIST EN 12952: water-tube boilers and auxiliary installations
- SIST EN 12953: shell boilers
- SIST EN 13445: unfired pressure vessels
- SIST EN 13480: industrial metal pipelines
- SIST EN 1993-3-1: design of steel structures: towers, masts and chimneys
