ISO 11119-4:2016规定了用于储存和运输压缩气体或液化气体的复合气瓶，其均载焊接衬里的水容量在0.5 l和150 l之间，最大试验压力为450 bar。 注1:1巴=105Pa=105N/m2。 气缸以焊接不锈钢衬里或焊接铁素体钢衬里或焊接铝合金衬里的形式构造，并在基体中包裹碳纤维或芳纶纤维或玻璃纤维（或其混合物），以提供纵向和周向钢筋。 ISO 11119本部分中的气缸为3型全缠绕气缸，在圆柱形部分和圆顶端部均配有均载金属衬套和复合加强件。 根据ISO 11119本部分生产的气瓶的最低设计寿命为15年。试验压力高达60巴的气瓶具有无限的设计寿命。 ISO 11119-4:2016未涉及可拆卸保护套的设计、安装和性能。 ISO 11119-4:2016不适用于带无缝衬里的气缸。对于无缝衬里，ISO 11119？2适用。 注2:ISO 11623涵盖了复合材料气缸的定期检查和重新测试。

ISO 11119-4:2016 specifies requirements for composite gas cylinders with load-sharing welded liners between 0,5 l and 150 l water capacity and a maximum test pressure of 450 bar for the storage and conveyance of compressed or liquefied gases. NOTE 1 1 bar = 105Pa = 105N/m2. The cylinders are constructed in the form of a welded stainless steel liner or welded ferritic steel liner or welded aluminium alloy liner and overwrapped with carbon fibre or aramid fibre or glass fibre (or a mixture thereof) in a matrix to provide longitudinal and circumferential reinforcement. The cylinders in this part of ISO 11119 are type 3 fully wrapped cylinders with a load-sharing metal liner and composite reinforcement on both the cylindrical portion and the dome ends. Cylinders produced in accordance with this part of ISO 11119 have a minimum design life of 15 years. Cylinders with test pressure of up to 60 bar have an unlimited design life. ISO 11119-4:2016 does not address the design, fitting, and performance of removable protective sleeves. ISO 11119-4:2016 does not apply to cylinders with seamless liners. For seamless liners, ISO 11119？2 applies. NOTE 2 ISO 11623 covers periodic inspection and re-testing of composite cylinders.