本文件规定了定期检查和测试的要求，以验证在未来一段时间内重新投入使用的气瓶和管道的完整性。 本文件适用于在压力下用于压缩和液化气体的无缝钢和无缝铝合金可运输气瓶（单个或由一捆组成的），水容量从0.5升到150升，以及用于压力下压缩和液化气体的无缝钢和无缝铝合金可运输气管（单根或由一束组成），水容量大于150升。在实际情况下，它也适用于水容量小于0.5升的气瓶。 本文件不适用于乙炔气瓶的定期检查和维护，也不适用于复合气瓶的定期检查和测试。 注:除非另有说明，本文件中使用的“气瓶”一词指的是气瓶和管子。

This document specifies the requirements for periodic inspection and testing to verify the integrity of cylinders and tubes to be re-introduced into service for a further period of time. This document is applicable to seamless steel and seamless aluminium-alloy transportable gas cylinders (single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy transportable gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less than 0,5 l water capacity. This document does not apply to the periodic inspection and maintenance of acetylene cylinders or to the periodic inspection and testing of composite cylinders. NOTE Unless noted by exception, the use of the word "cylinder" in this document refers to both cylinders and tubes.