API Std 620 Design and Construction of Large, Welded, Low-Pressure Storage Tanks, Twelfth Edition, Includes Addendum 1 (2014) and Addendum 2 (2018) standard by American Petroleum Institute, 10/01/2013
API MPMS Chapter 4.8 Operation of Proving Systems Handbook / Manual / Guide by American Petroleum Institute, 09/01/2013
API MPMS Chapter 10.5 (R2018) Manual of Petroleum Measurement Standards, Chapter 10-Sediment and Water, Section 5-Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation, Fifth Edition Handbook / Manual / Guide by American Petroleum Institute, 09/01/2013
API Spec 14L Lock Mandrels and Landing Nipples, Third Edition standard by American Petroleum Institute, 06/01/2020
API Spec 4F Specification for Drilling and Well Servicing Structures, Fifth Edition standard by American Petroleum Institute, 06/01/2020
API TR 21TR1 Addendum 2 Addendum to Technical Report on Materials Selection for Bolting, First Edition Amendment by American Petroleum Institute, 06/01/2020
API Spec 5CT Errata 3 Errata to Specification for Casing and Tubing, Tenth Edition Amendment by American Petroleum Institute, 06/01/2020
API RP 4G Addendum 1 Addendum to Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fifth Edition Amendment by American Petroleum Institute, 06/01/2020
API Spec 6A Errata 2 Errata to Specification for Wellhead and Tree Equipment, Twenty-First Edition Amendment by American Petroleum Institute, 06/01/2020
API Spec 10F Errata 2 Errata to Cementing Float Equipment, Fourth Edition Amendment by American Petroleum Institute, 06/01/2020
API RP 19GLHB Gas Lift Handbook, First Edition standard by American Petroleum Institute, 06/01/2020
API Std 537 Addendum 1 Addendum to Flare Details for Petroleum, Petrochemical, and Natural Gas Industries, Third Edition Amendment by American Petroleum Institute, 06/01/2020