NF EN ISO 25457, M87-350 (10/2023)

This document specifies requirements and provides guidance for the selection, design, specification, operation and maintenance of flares and their associated combustion and mechanical components used in steam relief and depressurization systems for the petroleum, petrochemical and natural gas industries. Although this document is primarily intended for onshore installations, guidance relating to offshore applications is included. Guidance and best practices for torch selection, specifications and mechanical details on the design, operation and maintenance of torch combustion and related equipment are also provided. This document is a supplement to API 537, 3rd edition (2017), including its addendum, the requirements of which are applicable with the exceptions specified in this document.
(Automatic translation from French)