标准编号：ISO 23251:2019
中文名称：石油、石化和天然气工业 泄压和减压系统
英文名称：Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems
发布日期：2019-03
标准范围
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.
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