API RP 579-1 / ASME FFS-1


API 579-1 / ASME FFS-1, Fitness-For-Service

Published by Publication Date Number of Pages
API 12/01/2021 1478


API RP 579-1 / ASME FFS-1, Fitness-For-Service

This standard provides guidance for conducting fitness-for-service assessments using methodologies specifically prepared for pressurized equipment. Fitness-for-service assessments are quantitative engineering evaluations that are performed to demonstrate the structural integrity of in-service components that may contain a flaw or damage, or that may be operating under a specific condition that might cause a failure.

The guidelines provided in this standard can be used to make run-repair-replace decisions to help determine if components in pressurized equipment containing flaws that have been identified by inspection can continue to operate safely for some period of time. These fitness-for-service assessments are currently recognized and referenced by API 510, API 570, and API 653, and by NBIC 23 (National Board Inspection Code) as suitable means for
evaluating the structural integrity of pressure vessels, piping systems, and storage tanks where inspection has revealed some level of degradation and/or flaws in the equipment.

This standard was developed by a joint API-ASME committee, is an ANSI American National Standard, and is recognized as an International Code.

Product Details

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File Size:
1 file , 27 MB
Product Code(s):
C57904, C57904, C57904
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