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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.
Recommended Practice for Flexible Pipe, Sixth Edition
Standard published on 1.5.2024
Selected format:API Recommended Practice onTFL (Through Flowline) Systems, Second Edition
Standard published on 1.9.2002
Selected format:Specification for Subsea Wellhead and Tree Equipment, Third Edition, Includes Errata 1 (2021) Addendum 1 (2022), and Addendum 2 (2025)
Standard published on 30.9.2021
Selected format:Addendum 1 (2022) to Specification for Subsea Wellhead and Tree Equipment, Third Edition
Adjunct of the standard published on 1.12.2022
Selected format:Addendum 2 to Specification for Subsea Wellhead and Tree Equipment, Third Edition
Adjunct of the standard published on 5.3.2025
Selected format:Errata 1 (2021) to Specification for Subsea Wellhead and Tree Equipment, Third Edition
Adjunct of the standard published on 1.12.2021
Selected format:Specification for Subsea Umbilicals, Fifth Edition, Includes Addendum 1 (2017)
Standard published on 1.7.2017
Selected format:Addendum 1 to Specification for Subsea Umbilicals, Fifth Edition
Adjunct of the standard published on 1.12.2017
Selected format:Standard for Subsea Production and Processing Control Systems, Fifth Edition
Standard published on 1.4.2023
Selected format:Design and Manufacture of Subsea Well Intervention Equipment, Third Edition
Standard published on 1.11.2019
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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