规定了焊接、切割、加热和相关工艺中使用的安全氧气燃气手持式或便携式设备的选择要求。本标准还详细说明了此类设备的安全操作和维护。它适用于便携式或移动式气瓶，包括折叠的气瓶组。本标准不包括网状系统和固定管道以及永久安装的火焰切割机等设备。

Specifies requirements for the selection of safe oxy-fuel gas hand-held or portable equipment used in welding, cutting, heating and allied processes. This Standard also details the safe operation and maintenance of this type of equipment. It applies to portable or mobile gas cylinders, inclusive of manifolded packs of cylinders. Reticulated systems and fixed piping, together with equipment, such as permanently mounted flame-cutting machines, are not intended to be covered by this Standard.