API Standards – Request Official Documents Online 2026

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API RP 577

Welding Processes, Inspection, and Metallurgy

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API RP 578

Material Verification Program for New and Existing Assets

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API RP 580

Elements of a Risk-Based Inspection Program

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API RP 581

Risk-Based Inspection Methodology

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API RP 582

Welding Guidelines for the Chemical, Oil, and Gas Industries

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API RP 583

Corrosion Under Insulation and Fireproofing

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API RP 584

Integrity Operating Windows

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API RP 585

Pressure Equipment Integrity Incident Investigation

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API RP 588

Recommended Practice for Source Inspection and Quality Surveillance of Fixed Equipment

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API RP 59

Recommended Practice for Well Control Operations—Russian

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API RP 591

Process Valve Qualification Procedure

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API RP 5A3

Thread Compounds for Casing, Tubing, Line Pipe, and Drill Stem Elements—Ukrainian

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