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A collection of featured documents from our library that are popular among our users or otherwise noteworthy.

API Std 650 14th edition

Welded Tanks for Oil Storage

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API Std 608 7th edition

Metal Ball Valves—Flanged, Threaded, and Welding Ends

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API RP 552 2nd edition

Transmission Systems

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API Spec 5L 47th Edition

Line Pipe

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API Std 653 5th edition

Tank Inspection, Repair, Alteration, and Reconstruction

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API RP 500 4th edition

Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1, and Division 2 4th 2023 C50004 $302.00 108 Rp 505 Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2

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API Std 1104 22nd edition

Welding of Pipelines and Related Facilities, Includes Errata 1 (2023) and Addendum 1 (2026)

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API RP 5C1 18th edition

Recommended Practice for Care and Use of Casing and Tubing

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API Spec 6A 21st edition

Specification for Wellhead and Tree Equipment

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API Std 53 (R2023) 5th edition

Well Control Equipment Systems for Drilling Wells

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All Documents

API RP 557 2nd edition
Guide to Advanced Control Systems
API RP 557 2nd edition

Guide to Advanced Control Systems

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API Std 565 1st edition
Thermal Reactors for Sulfur Recovery Units in General Refinery Services
API Std 565 1st edition

Thermal Reactors for Sulfur Recovery Units in General Refinery Services

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API RP 585 3rd Edition PDF Preview
API RP 585 3rd Edition

Pressure Equipment Integrity Incident Investigation

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API RP 588 1st edition
Recommended Practice for Source Inspection and Quality Surveillance of Fixed Equipment
API RP 588 1st edition

Recommended Practice for Source Inspection and Quality Surveillance of Fixed Equipment

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API RP 59 2nd edition
Recommended Practice for Well Control Operations
API RP 59 2nd edition

Recommended Practice for Well Control Operations

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API RP 591 6th edition
Process Valve Qualification Procedure
API RP 591 6th edition

Process Valve Qualification Procedure

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API Std 594 10th Edition PDF Preview
API Std 594 10th Edition

Check Valves: Flanged, Lug, Wafer, and Butt-welding, Includes Errata 1 (2026)

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API Std 598 11th edition PDF Preview
API Std 598 11th edition

Valve Inspection and Testing

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API Std 599 8th edition
Metal Plug Valves—Flanged, Threaded, and Welding Ends
API Std 599 8th edition

Metal Plug Valves—Flanged, Threaded, and Welding Ends

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API RP 5B1 6th Edition PDF Preview
API RP 5B1 6th Edition

Gauging and Inspection of Casing, Tubing, and Line Pipe Threads

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API TR 5C3 7th edition
Calculating Performance Properties of Pipe Used as Casing or Tubing—Ukrainian
API TR 5C3 7th edition

Calculating Performance Properties of Pipe Used as Casing or Tubing—Ukrainian

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API RP 5C5 4th edition
Procedures for Testing Casing and Tubing Connections
API RP 5C5 4th edition

Procedures for Testing Casing and Tubing Connections

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API RP 5C6 3rd edition
Pipe with Welded Connectors
API RP 5C6 3rd edition

Pipe with Welded Connectors

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API RP 5C8 1st edition
Care, Maintenance, and Inspection of Coiled Tubing
API RP 5C8 1st edition

Care, Maintenance, and Inspection of Coiled Tubing

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API Spec 5DP 2nd edition
Drill Pipe
API Spec 5DP 2nd edition

Drill Pipe

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API RP 5EX 1st edition
Design, Verification, and Application of Solid Expandable Systems
API RP 5EX 1st edition

Design, Verification, and Application of Solid Expandable Systems

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API RP 5L8 2nd edition
Recommended Practice for Field Inspection of New Line Pipe
API RP 5L8 2nd edition

Recommended Practice for Field Inspection of New Line Pipe

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API Spec 5LC 4th edition
CRA Line Pipe
API Spec 5LC 4th edition

CRA Line Pipe

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API Spec 5LCP 2nd edition
Specification on Coiled Line Pipe
API Spec 5LCP 2nd edition

Specification on Coiled Line Pipe

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API Spec 5LD 4th edition
CRA Clad or Lined Steel Pipe
API Spec 5LD 4th edition

CRA Clad or Lined Steel Pipe

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API RP 5LT 1st edition
Recommended Practice for Truck Transportation of Line Pipe
API RP 5LT 1st edition

Recommended Practice for Truck Transportation of Line Pipe

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API RP 5MT 1st edition
Pipeline Inspection Documents for Material Traceability and Electronic Test Reports
API RP 5MT 1st edition

Pipeline Inspection Documents for Material Traceability and Electronic Test Reports

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API Spec 5ST 1st edition
Specification for Coiled Tubing--”U.S. Customary and SI Units
API Spec 5ST 1st edition

Specification for Coiled Tubing--”U.S. Customary and SI Units

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API TR 5TRSR22 1st edition
Technical Report in SR22 Supplementary Requirements for Enhanced Leak Resistance LTC
API TR 5TRSR22 1st edition

Technical Report in SR22 Supplementary Requirements for Enhanced Leak Resistance LTC

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API Std 600 14th edition
Steel Gate Valves—Flanged and Butt-Welding Ends, Bolted Bonnets
API Std 600 14th edition

Steel Gate Valves—Flanged and Butt-Welding Ends, Bolted Bonnets

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