ISO 25457:2008规定了石油、石化和天然气工业减压和蒸汽减压系统中使用的火炬及相关燃烧和机械部件的选择、设计、规范、操作和维护的要求和指南。 尽管ISO 25457:2008主要用于新火炬和相关设备，但也可用于现有火炬设施的评估。 为火炬的选择、规格和机械细节以及火炬燃烧和相关设备的设计、操作和维护提供了进一步的指导和最佳实践。 ISO 25457:2008还包括一组数据表，以及说明和指南，用于交流和记录设计信息。

ISO 25457:2008 specifies requirements and provides guidance for the selection, design, specification, operation and maintenance of flares and related combustion and mechanical components used in pressure relieving and vapour-depressurizing systems for petroleum, petrochemical and natural gas industries. Although ISO 25457:2008 is primarily intended for new flares and related equipment, it can also be used in the evaluation of existing flare facilities. Further guidance and best practices are provided for the selection, specification and mechanical details for flares and on the design, operation and maintenance of flare combustion and related equipment. ISO 25457:2008 also includes a set of data sheets, together with instructions and guidelines, for use in communicating and recording design information.