本规范涵盖了反冲机构和地面车辆及设备液压系统中-40°C至200°C温度范围内使用的一种合成烃基液压油（见6.1）的要求。该液压油不得用于飞机系统、飞机地面支持设备或飞机部件的保护。

This specification covers the requirements for one type of synthetic hydrocarbon base hydraulic fluid (see 6.1) for use in the -40 degrees C to 200 degrees C temperature range in recoil mechanisms and ground vehicle and equipment hydraulic systems. This hydraulic fluid will not be used for aircraft systems, aircraft ground support equipment, or the preservation of aircraft components.