ISO 12209:2013规定了压缩可呼吸空气气瓶阀门的出口连接特性。它阐明了两者的基本要求；连接件及其部件，包括基本尺寸。ISO 12209:2013中包括以下连接: a） 用于潜水的轭式出口连接，最大气缸工作压力为232巴； b） 螺纹式出口连接，最大气缸工作压力为232巴和300巴； 和 c） 用于潜水的螺纹式出口连接使用最高232巴的气缸工作压力，包括用户转换为轭式出口的适配器。 附录A给出了出口连接型式试验程序。 ISO 12209:2013未涵盖气瓶阀门的要求（见ISO 10297）。 ISO 12209:2013未涵盖材料规范和气体/材料兼容性要求（见ISO 11114-1和ISO 11114-2）。

ISO 12209:2013 specifies the characteristics of outlet connections for gas cylinder valves for compressed breathable air gas cylinders. It states the fundamental requirements for both; the connection and its components and includes basic dimensions. Included in ISO 12209:2013 the following connections: a) yoke type outlet connection for SCUBA use up to a maximum cylinder working pressure of 232 bar; b) threaded type outlet connections up to a maximum cylinder working pressure of 232 bar and 300 bar; and c) threaded type outlet connection for SCUBA use up to a maximum cylinder working pressure of 232 bar including adaptor for users to convert into a yoke type outlet. Annex A gives the outlet connection type test procedures. Requirements for cylinder valves (see ISO 10297) are not covered by ISO 12209:2013. Requirements for material specifications and gas/material compatibility (see ISO 11114？1 and ISO 11114？2) are not covered by ISO 12209:2013.