API – American Petroleum Institute

The American Petroleum Institute () is the only national trade association that represents all aspects of America’s oil and natural gas industry.

American Petroleum Institute

The American Petroleum Institute – API – represents more than 400 members involved in the oil and natural gas industry.

Over 900 API standards serve as the basis for API quality programs covering production material and lubricants, and certification programs for storage tanks, pressure vessels, and piping inspectors. API publish recommended practices, research reports, and specifications on pipelines, valves, offshore structures, oil-spill response procedures, environmental protection, exploration, facility management and much more.
The API membership work is organized in
  • the API upstream segment
  • the API downstream segment
  • the API marine segment
  • the API pipeline segment
Popular Titles from API
Some popular titles from API are
API Publication 4721
Analytical Detection and Quantification Limits:
Survey of State and Federal Approaches
  • API 526
    Flanged Steel Pressure Relief Valves
  • API 620
    Design and Construction of Large, Welded, Low-Pressure Storage Tanks
  • API RP 1007
    Loading and Unloading of MC 306 / DOT 406 Cargo Tank Motor Vehicles
  • ANSI/API 1104
    Welding of Pipelines and Related Facilities
  • API 650
    Welded Steel Tanks for Oil Storage
  • API 653
    Tank Inspection, Repair, Alteration, and Reconstruction
  • API 5L
    Specification for Line Pipe
  • API SPEC 6A
    Specification for Wellhead and Christmas Tree Equipment
  • API 5CT
    Specification for Casing and (U.S. Customary Units), This Standard specifies the technical delivery conditions for steel pipes (casing, and pup joints), coupling stock, coupling material and accessory material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3).
  • API RP 7G
    Recommended Practice for Drill Stem Design and Operation Limits
  • was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 5, Casing, tubing and drill pipe.

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