Electrical API RP 500B, API RP Equipment 14F,NEC Article 500, NFPA 476, UL, CSA, FM, NEMA, CENELEC, BASEFA, British Standards Pressure ASME Section VIII, Division 1 Pressure Piping ANSI B.31.3 British Standards Welding AWS D1.1 and ASME Section XI Corossion protection Steel Structures Painting Council (SSPC)