Inspection
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API 570

API 570 — Piping Inspection Standard

An API inspection code that establishes requirements for the inspection, repair, alteration and rerating of in-service piping systems.

Definition

API 570 is an American Petroleum Institute inspection code that defines the minimum requirements for inspecting, repairing, altering and rerating metallic piping systems used in petroleum, petrochemical and related process facilities. The code establishes inspection practices, inspector qualifications, inspection intervals and documentation requirements to maintain piping integrity throughout its operating life.

Why It Matters

API 570 supports safe and reliable plant operation by providing a consistent framework for piping inspection, integrity assessment and maintenance planning.

In Practice

API 570 is frequently applied together with API RP 574 for inspection practices, API RP 580/581 for Risk-Based Inspection and API RP 571 for damage mechanism identification.

Common Misuse

API 570 applies to piping systems already in service and complements, rather than replaces, piping design codes such as ASME B31.3.

Term Details
Synonyms:
API 570; Piping Inspection Code; Piping Inspection; Piping Code
Classification:
Standards, Codes & Regulations
Standard
Intermediate
Applications

Mechanical Integrity; Piping Systems; Inspection; Corrosion Management; Risk-Based Inspection.

Where It's Used

Inspecting process piping.; Assessing corrosion and wall loss.; Planning piping repairs.; Determining inspection intervals.; Supporting RBI programs.

References

API 570

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