Specification for High-Test Line Pipe, Eleventh Edition, Includes Erratum (1963) and Supplement 1 (1964)
standard by American Petroleum Institute, 03/01/1963

Specification for High-Test Line Pipe, Twenty-third Edition, Includes Supplement 1 (1981)
standard by American Petroleum Institute, 03/01/1980

Flanged Steel Pressure Relief Valves
standard by American Petroleum Institute, 06/01/1995

Functional Integrity of Natural Gas Storage in Depleted Hydrocarbon Reservoirs and Aquifer Reservoirs, Second Edition
standard by American Petroleum Institute, 11/01/2022

Volume Correction Factors – Volume XIII – Table 5D: Generalized Lubricating Oils, Correction of Observed API Gravity to API Gravity at 60 Degrees Fahrenheit. Table 6D: Generalized Lubricating Oils, Correction of Volume to 60 Degrees Fahrenheit Against API Gravity at 60 Degrees Fahrenheit
Handbook / Manual / Guide by American Petroleum Institute, 01/01/1982

Fire Test for Quarter-turn Valves and Valves Equipped with Nonmetallic Seats, Eighth Edition
standard by American Petroleum Institute, 10/01/2022

Recommended Practice for Care and Use of Fiberglass Tubulars, Third Edition
standard by American Petroleum Institute, 10/01/2022

Manual of Petroleum Measurement Standards Chapter 14.13 Simplified Metering System Design and Performance-based Methodology for Non-custody Gas Measurement, First Edition
Handbook / Manual / Guide by American Petroleum Institute, 10/01/2022

Specification for Line Pipe, Thirty-eighth Edition
standard by American Petroleum Institute, 05/01/1990

Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Eleventh Edition
standard by American Petroleum Institute, 10/01/2022