本文件规定了以下用途球阀的设计、型式试验、标记、制造试验和检查要求: a） 可重复充装的可运输气瓶、压力桶和管道的关闭；b） 气缸组的主阀；c） 货物运输装置的阀门[例如拖车、电瓶车、多元气体容器（MEGC）]； 输送压缩气体、液化气体和溶解气体。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies design, type testing, marking, manufacturing tests and examinations requirements for ball valves used as: a) closures of refillable transportable gas cylinders, pressure drums and tubes;b) main valves for cylinder bundles;c) valves for cargo transport units [e.g. trailers, battery vehicles, multi-element gas containers (MEGCs)]; which convey compressed gases, liquefied gases and dissolved gases.All current amendments available at time of purchase are included with the purchase of this document.