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API (American Petroleum Institute) is a leader in the development of petroleum and petrochemical equipment and operating standards covering topics that range from drill bits to environmental protection. These embrace proven, sound engineering and operating practices and safe, interchangeable equipment and materials. Many have been incorporated into state and federal regulations and adopted by ISO for worldwide acceptance.
Weathervaning System Integrity Management, First Edition
Standard published on 1.10.2025
Selected format:Ultrasonic and Magnetic Examination of Offshore Structural Fabrication and Guidelines for Qualification of Technicians, Fourth Edition
Standard published on 1.5.2004
Selected format:Specification for Steel Plates, Quenched-and-Tempered, for Offshore Structures, Fifth Edition
Standard published on 1.12.2006
Selected format:Preproduction Qualification for Steel Plates for Offshore Structures, Fourth Edition
Standard published on 1.9.2005
Selected format:Standard Practice for the Manual Gauging of Petroleum and Petroleum Products, Third Edition, Includes Errata 1 (2020)
Standard published on 1.8.2013
Selected format:Errata to Standard Practice for the Manual Gauging of Petroleum and Petroleum Products, Third Edition
Adjunct of the standard published on 1.1.2021
Selected format:Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Tanks by Automatic Tank Gauging, Fourth Edition
Standard published on 1.10.2021
Selected format:Standard Practice for Gauging Petroleum and Petroleum Products in Tank Cars, 2nd Edition
Standard published on 1.3.2025
Selected format:Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Pressurized Storage Tanks by Automatic Gauging
Standard published on 31.5.1996
Selected format:Standard Practice for Level Measurement of Liquid Hydrocarbons on Marine Vessels by Automatic Tank Gauging
Standard published on 1.4.1995
Selected format:Latest update: 2025-12-25 (Number of items: 2 253 105)
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