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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 Drilling and Well Servicing Operations Involving Hydrogen Sulfide
Standard published on 1.5.2001
Selected format:Specification for Drilling and Well Servicing Structures, Fifth Edition, Includes Addendum 1 (2023)
Standard published on 1.6.2020
Selected format:Recommended Practice for Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fifth Edition, Includes Addendum 1 (2020) and Addendum 2 (2020)
Standard published on 1.2.2019
Selected format:Addendum to Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fifth Edition
Adjunct of the standard published on 1.6.2020
Selected format:Addendum to Recommended Practice for Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fifth Edition
Adjunct of the standard published on 1.9.2020
Selected format:Metering: General Considerations for Measurement by Meters, Includes Errata (June 2008), Errata 2 (June 2011)
Standard published on 31.8.2005
Selected format:Errata to Metering: General Considerations for Measurement by Meters
Adjunct of the standard published on 1.6.2011
Selected format:Metering: Measurement of Liquid Hydrocarbons by Displacement Meters
Standard published on 1.9.2005
Selected format:Metering: Measurement of Liquid Hydrocarbons by Turbine Meters, Fifth Edition, Includes Addendum 1 (2009)
Standard published on 1.9.2005
Selected format:Addendum 1 to Metering: Measurement of Liquid Hydrocarbons by Turbine Meters
Adjunct of the standard published on 1.7.2009
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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