Drilling-Fluid Materials
standard by American Petroleum Institute, 05/01/1993

API Recommended Practice 13D, Recommended Practice on the Rheology and Hydraulics of Oil-well Drilling Fluids, Fourth Edition
standard by American Petroleum Institute, 05/01/2003

Shale Shaker Screen Cloth Designation
standard by American Petroleum Institute, 05/01/1993

Testing of Heavy Brines
standard by American Petroleum Institute, 03/01/1996

Specification for Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Service
standard by American Petroleum Institute, 08/01/1994

Engine Oil Licensing and Certification System
standard by American Petroleum Institute, 12/01/1996

Lubricant Service Designations for Automotive Manual Transmissions, Manual Transaxles and Axles
standard by American Petroleum Institute, 07/01/1995

Specification for High Pressure Fiberglass Line Pipe
standard by American Petroleum Institute, 04/01/1995

Specification for Polyethylene Line Pipe (PE)
standard by American Petroleum Institute, 04/01/1995

Specification for Low Pressure Fiberglass Line Pipe
standard by American Petroleum Institute, 09/01/1990