Reference number
ISO 23251:2019
ISO 23251:2019
© ISO 2024
International Standard
ISO 23251:2019
Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems
Edition 2
2019-03
2019-03
ISO 23251:2019
75144
Published
(Edition 2, 2019)
This publication was last reviewed and confirmed in 2024.
Therefore this version remains current.
Abstract
This document is applicable to pressure-relieving and vapour depressuring systems. Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, Liquefied Natural Gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations.
This document supplements API Std 521, 6th edition (2014), the requirements of which are applicable with the exceptions specified in this document.
General information
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Status: PublishedPublication date: 2019-03Stage: International Standard confirmed [90.93]
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Edition: 2Number of pages: 5
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Technical Committee :ISO/TC 67/SC 6ICS :75.180.20
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