ISO 15859-6:2004规定了一甲基肼（MMH）成分的限值，并确定了适用于验证一甲基肼（MMH）成分的取样和试验要求。 ISO 15859-6:2004适用于一甲基肼推进剂，用作a级（纯度98.0%）和F级（纯度98.5%）航天系统推进剂系统以及飞行硬件和地面设施、系统和设备中的燃料。 ISO 15859-6:2004仅适用于本规范规定范围内的进水。 ISO 15859-6:2004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 15859-6:2004 specifies limits for the composition of monomethylhydrazine and establishes the sampling and test requirements applicable for the verification of the monomethylhydrazine (MMH) composition. ISO 15859-6:2004 is applicable to monomethylhydrazine propellant, used as a fuel in propellant systems of space systems as well as in both flight hardware and ground facilities, systems, and equipment, of Grade A (98,0 % pure) and Grade F (98,5 % pure). ISO 15859-6:2004 is applicable to influents only within the specified limits herein. ISO 15859-6:2004 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 to for a particular use.