ISO 17879:2017规定了用于输送压缩、液化或溶解气体的可再填充可运输气瓶的自闭式气瓶阀的设计、型式试验、标记和制造试验及检查要求。 注1:这种自动关闭钢瓶阀的主要应用是在校准气体和饮料行业。 ISO 17879:2017涵盖了作为关闭装置的自动关闭气瓶阀的功能。 注2:ISO 10297中给出了标准气瓶阀的要求。ISO 17871中给出了快速释放气缸阀的要求。 ISO 17879:2017不适用于低温设备、便携式灭火器或液化石油气（LPG）的自动关闭气瓶阀。 注3:低温容器阀门的要求在ISO 21011中有规定，在地区层面上也有规定，例如在EN 1626中。 例如，EN 3系列规定了地区级便携式灭火器阀门的要求。ISO 14245规定了自动关闭LPG钢瓶阀门的要求。 注4:国际/地区法规/标准中可能会规定泄压装置的附加要求。

ISO 17879:2017 specifies the design, type testing, marking and manufacturing tests and examinations requirements for self-closing cylinder valves intended to be fitted to refillable transportable gas cylinders which convey compressed, liquefied or dissolved gases. NOTE 1 The main applications for such self-closing cylinder valves are in the calibration gas and beverage industries. ISO 17879:2017 covers the function of a self-closing cylinder valve as a closure. NOTE 2 Requirements for standard cylinder valves are given in ISO 10297. Requirements for quick-release cylinder valves are given in ISO 17871. ISO 17879:2017 is not applicable to self-closing cylinder valves for cryogenic equipment, for portable fire extinguishers, or for liquefied petroleum gas (LPG). NOTE 3 Requirements for valves for cryogenic vessels are specified in ISO 21011 and at a regional level, for example, in EN 1626. Requirements for valves for portable fire extinguishers at a regional level are specified, for example, in EN 3 series. Requirements for self-closing LPG cylinder valves are specified in ISO 14245. NOTE 4 Additional requirements for pressure-relief devices might be specified in international/regional regulations/standards.