1. API 2003 “Special Purpose Gear Units for Petroleum Chemical and Gas Industry Services ”APIStandard 613 Fifth Edition.American Petroleum Institute Washington D.C.
2. API 2005 “Standard Paragraphs Rotordynamic Tutorial: Lateral Critical Speeds Unbalance Response Stability Train Torsionals and Rotor Balancing ” A Recommended Practice (RP) 684 Second Edition.American Petroleum Institute Washington D.C.
3. API 2008 “Lubrication Shaft‐Sealing and Oil‐Control Systems and Auxiliaries ”APIStandard 614 Fifth Edition.American Petroleum Institute Washington D.C.
4. API 2010 “Centrifugal Pumps for Petroleum Petrochemical and Natural Gas Industries ”APIStandard 610 Eleventh Edition.American Petroleum Institute Washington D.C.
5. API 2014 “Petroleum Petrochemical and Natural Gas Industries—Steam Turbines—Special‐Purpose Applications ”APIStandard 612 Seventh Edition.American Petroleum Institute Washington D.C.