本文件规定了物理和化学性能的要求，以及评估磷酸酯液压液在需要耐火性的飞机系统中的适用性的最低测试。资格认证机构可规定额外试验，以证明符合其具体要求。“合格机构”将在本文中定义为机身制造商，提交在特定模型飞机中使用液体的认证批准。符合本规范要求的液体可由合格机构批准用于特定机型。证明符合本规范的数据可由合格机构用于证明符合相应认证机构的适用法规； e、 美国联邦航空局、欧洲航空航天局等。

This document establishes the requirements for physical and chemical properties and the minimum tests to evaluate suitability of phosphate ester hydraulic fluids for use in aircraft systems where fire resistance is required. Additional tests may be specified by the qualifying agency to demonstrate compliance with their specific requirements. The "qualifying agency" will be defined herein to be the airframe manufacturer submitting certification approval for use of the fluid in a specific model airplane.Fluids meeting the requirements of this specification may be approved by a qualifying agency for use on specific airplane models. Data used to show compliance to this specification can be used by the qualifying agency to show compliance to the applicable regulations for the appropriate certifying authority; e.g., FAA, EASA, etc.