API Std 681 (R2010)
Liquid Ring Vacuum Pumps and Compressors for Petroleum, Chemical, and Gas Industry Services, 1st Edition
standard by American Petroleum Institute, 02/01/1996
API 653
Tank Inspection, Repair, Alteration, and Reconstruction, 2nd Edition, Includes Addendum 1 (2010), Addendum 2 (2012)
standard by American Petroleum Institute, 12/01/1995
API RP 60
[ Withdrawn ]
Recommended Practices for Testing High-Strength Proppants Used in Hydraulic Fracturing Operations
standard by American Petroleum Institute, 12/01/1995