本文件适用于压力真空阀和防止火焰通过的装置，这两种装置都是保护液货舱的，它们可能受到爆炸性气体/蒸汽和/或超过系统/液货舱设计参数的气体/蒸汽压力或真空的影响。它规定了性能和测试的最低要求。它还规定了设计和在用性能标准、运行测试和维护要求。根据本文件进行的设计或制造并不意味着适用于任何给定的安装，它表明已考虑了某些最低要求，并向设备买方提供了确定适用性所需的信息。 ISO 16852:2016的火焰测试程序包含在本文件中。 注:国际海事组织（IMO）《经修正的国际海上人命安全公约》（SOLAS）第二章规定了防止火焰通过装置的最低要求- 以及经修订的国际海事组织海事安全委员会（MSC）第677号通告（MSC/Circ.677），“防止火焰进入油轮货舱装置的设计、测试和定位的修订标准”。

This document is applicable to pressure-vacuum valves and to devices to prevent the passage of flame, both protecting cargo tanks, that can be subject to explosive gas/vapour and/or to gas/vapour pressure or vacuum beyond the design parameters of the system/tank. It specifies the minimum requirements for performance and testing. It also specifies design and in-service performance criteria, operational testing and maintenance requirements. Design or manufacturing in accordance with this document does not imply suitability for any given installation, it indicates that certain minimum requirements have been considered and that information necessary for determination of suitability is provided to the buyer of the equipment. The flame test procedures of ISO 16852:2016 are incorporated in this document. NOTE Minimum requirements for devices to prevent the passage of flame are found in the International Maritime Organization (IMO) "International Convention for the Safety of Life at Sea, as amended" (SOLAS), Chapter II-2, Regulation 4, and IMO Maritime Safety Committee (MSC) Circular No. 677 (MSC/Circ. 677), "Revised Standards for the Design, Testing and Locating of Devices to Prevent the Passage of Flame into Cargo Tanks in Tankers", as amended.