استاندارد API 570

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45 صفحه - به زبان انگلیسی

Piping Inspection Code
Inspection, Repair, Alteration, and Rerating
of In-service Piping Systems

Scope

1.1 GENERAL APPLICATION
1.1.1

Coverage

API 570 covers inspection, repair, alteration, and rerating procedures for metallic piping systems that have been in-service.

1.1.2 Intent
API 570 was developed for the petroleum refining and
chemical process industries but may be used, where practical, for any piping system. It is intended for use by orga
zations that maintain or have access to an authorized
inspection agency, a repair organization, and technically
qualified piping engineers, inspectors, and examiners, all
as defined in Section 3.

1.1.3 Limitations

API 570 shall not be used as a substitute for the original
construction requirements governing a piping system before
it is placed in-service; nor shall it be used in conflict with any
prevailing regulatory requirements.

1.2 SPECIFIC APPLICATIONS
1.2.1 Included Fluid Services

Except as provided in 1.2.2, API 570 applies to piping systems for process fluids, hydrocarbons, and similar flammable
or toxic fluid services, such as the following:
a. Raw, intermediate, and finished petroleum products.
b. Raw, intermediate, and finished chemical products.
c. Catalyst lines.
d. Hydrogen, natural gas, fuel gas, and flare systems.
e. Sour water and hazardous waste streams above threshold
limits, as defined by jurisdictional regulations.
f. Hazardous chemicals above threshold limits, as defined by
jurisdictional regulations.

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