标准摘要
[中文适用范围]： 本文件规定了低温止回阀的设计、制造和测试方法的要求，以使其在极低温度环境（-50℃至-196℃）下具有优异的泄漏稳定性。 [外文原描述]： This document specifies requirements of design, manufacture, and test methods for cryogenic check valves to have excellent quality of leakage stability in very low temperature environments (−50 °C to −196 °C).
英文名称Ships and marine technology — Check valves for use in low temperature applications — Design and testing requirements