标准摘要
[中文适用范围]： 本文件规定了低温球阀的设计、制造和测试方法的要求，以便在极低温度（−196 °C 至 80 °C）下具有出色的质量泄漏稳定性。 [外文原描述]： This document specifies requirements for design, manufacture and test methods of cryogenic ball valves in order to have an excellent quality leakage stability in a very low temperature service (−196 °C to 80 °C).
英文名称Ships and marine technology — Ball valves for use in low temperature applications — Design and testing requirements