Supplement 1 – Recommended Practice, Standard Procedure for Laboratory Testing Drilling Fluids – Included with purchase of 13I
Amendment by American Petroleum Institute, 10/01/1996

Supplement 2 – Recommended Practice, Standard Procedure for Laboratory Testing Drilling Fluids – Included with purchase of 13I
Amendment by American Petroleum Institute, 06/01/1997

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

Subsurface Safety Valve Equipment
Amendment by American Petroleum Institute, 12/15/1997

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

Errata 1 – Recommended Practice for Installation, Maintenance and Repair of Surface Safety Valves and Underwater Safety Valves Offshore
Amendment by American Petroleum Institute, 09/23/1996

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

Petroleum Test Laboratory Accreditation Program
standard by American Petroleum Institute, 10/01/1995

Motor Oil Guide
Handbook / Manual / Guide by American Petroleum Institute, 09/01/1996