ISO 14114:2017适用于从气瓶阀或管束出口连接处延伸至主截止阀出口连接处的乙炔气瓶歧管系统。它规定了供应用于焊接，切割和相关工艺的乙炔的气缸歧管系统的设计，材料和测试的要求。 ISO 14114:2017适用于乙炔气瓶歧管系统，其中乙炔单缸或乙炔束耦合在一起用于集体排气。 注:关于在单一地点（如在仓库或连接到歧管系统）限制乙炔单瓶/乙炔量的国家法规。 ISO 14114:2017还涵盖了分解阻断剂的测试程序。

ISO 14114:2017 applies to acetylene cylinder manifold systems extending from the cylinder valve or the bundle outlet connections to the outlet connection of the main shut-off valve. It specifies requirements for design, materials and testing of cylinder manifold systems for the supply of acetylene for use in welding, cutting and allied processes. ISO 14114:2017 applies to acetylene cylinder manifold systems in which acetylene single cylinders or acetylene bundles are coupled for collective gas withdrawal. NOTE National regulations exist regarding limitation of the amount of single cylinders/bundles of acetylene on a single location (e.g. in warehouse or connected to a manifold system). ISO 14114:2017 also covers a test procedure for decomposition blockers.