ISO 15859-1:2004规定了氧气成分的极限值，并确定了适用于验证氧气成分的取样和试验要求。 ISO 15859-1:2004适用于以下类型和等级的飞行硬件和地面设施、系统和设备中使用的氧气:I型气态（A级:标准、吹扫/加压、CB级:机组呼吸、F级:燃料电池）和II型液体（A级:氧化剂、B级:氧化剂、F级:燃料电池）。 ISO 15859-1:2004仅在本文规定的范围内适用于进水。 ISO 15859-1:2004适用于确保流体进入运载火箭或航天器时，流体成分符合下文规定的限值或为特定用途商定的任何技术规范所需的任何取样操作。

ISO 15859-1:2004 specifies the limit values for the composition of oxygen and establishes the sampling and test requirements applicable for the verification of the oxygen composition. ISO 15859-1:2004 is applicable to oxygen used in both flight hardware and ground facilities, systems and equipment, of the following types and grades: Type I, gaseous (Grade A: standard, purging/pressurization, Grade CB: crew breathing, Grade F: fuel-cell) and Type II, liquid (Grade A: oxidize, Grade B: oxidizer, Grade F: fuel-cell). ISO 15859-1:2004 is applicable to influents only to the extent specified herein. ISO 15859-1:2004 is applicable to any sampling operation required to ensure that, when the fluid enters the launch vehicle or spacecraft, the fluid composition complies with the limits provided hereafter or with any technical specification agreed for a particular use.