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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.
Specification for Line Pipe, Forty-sixth Edition
Standard published on 1.4.2018
Selected format:Errata 1 to Specification for Line Pipe, Forty-sixth Edition
Adjunct of the standard published on 1.5.2018
Selected format:Recommended Practice for Railroad Transportation of Line Pipe, Seventh Edition
Standard published on 1.9.2009
Selected format:Recommended Practice for Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service, Fourth Edition
Standard published on 1.7.2002
Selected format:Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe, Fourth Edition, Includes Addendum 1 (2020) and Errata 1 (2020)
Standard published on 1.8.2014
Selected format:Addendum to Drop-Weight Tear Tests on Line Pipe, Fourth Edition
Adjunct of the standard published on 1.10.2020
Selected format:Errata to Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe, Fourth Edition
Adjunct of the standard published on 1.3.2021
Selected format:Recommended Practice for Unprimed Internal Fusion Bonded Epoxy Coating of Line Pipe, Second Edition
Standard published on 30.6.1988
Selected format:Recommended Practice for Field Inspection of New Line Pipe, Third Edition
Standard published on 1.10.2025
Selected format:Recommended Practice for External Fusion Bounded Epoxy Coating of Line Pipe, First Edition
Standard published on 1.12.2001
Selected format:Latest update: 2026-03-15 (Number of items: 2 266 660)
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