This standard specifies the minimum requirements for steam turbines for special-purpose applications for use in the petroleum@ petrochemical@ and natural gas industries. These requirements include basic design@ materials@ fabrication@ inspection testing@ and preparation for shipment. It also covers the related lube oil systems@ instrumentation@ control systems@ and auxiliary equipment. It is not applicable to general-purpose steam turbines@ which are covered in API 611.
API STD 612-2014 history
2020API STD 612-2020 Petroleum, Petrochemical, and Natural Gas Industries—Steam Turbines— Special-purpose Applications (EIGHTH EDITION)
2014API STD 612-2014 Petroleum@ Petrochemical and Natural Gas Industries - Steam Turbines - Special-Purpose Applications (SEVENTH EDITION)
2005API STD 612-2005 Petroleum@ Petrochemical and Natural Gas Industries - Steam Turbines - Special-Purpose Applications (Sixth Edition)
2003API STD 612-2003 Petroleum@ Petrochemical and Natural Gas Industries - Steam Turbines - Special-Purpose Applications (Fifth Edition; Errata July 2003)
1995API STD 612-1995 Special-Purpose Steam Turbines for Petroleum@ Chemical@ and Gas Industry Services