0

ISO 23251:2019

Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems ISO 23251:2019

Publication date:   Mar 18, 2019

General information

90.20 Standard under periodical review   Jan 15, 2024

ISO

ISO/TC 67/SC 6 Processing equipment and systems

International Standard

75.180.20   Processing equipment

Buying

Published

Language in which you want to receive the document.

Scope

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.

Life cycle

PREVIOUSLY

ABANDON
ISO/DIS 23251

WITHDRAWN
ISO 23251:2006

WITHDRAWN
ISO 23251:2006/Cor 1:2007

WITHDRAWN
ISO 23251:2006/Amd 1:2008

NOW

PUBLISHED
ISO 23251:2019
90.20 Standard under periodical review
Jan 15, 2024