本规范涵盖模制环形式的氟硅橡胶。主要用于需要耐喷气燃料和润滑油的应用。选择升高的试验温度作为可获得可再现实验室数据的最高温度。这些温度不一定表示，也不能解释为这些环可以使用的最高工作温度。

This specification covers a fluorosilicone rubber in the form of molded rings. Primarily for use in applications requiring resistance to jet fuel and lubricating oil. The elevated test temperatures were selected as the maximum temperatures at which reproducible laboratory data could be obtained. These temperatures do not necessarily indicate, nor are they to be construed as, the maximum operating temperatures at which these rings can be used.