本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本规范涵盖板材、带材、管材、挤压件和模制形状（o形圈除外）的乙丙橡胶（EPDM）。这些产品通常用于联氨基流体中-55至+70mDC（-67至+158mDF）范围内的密封件和垫圈，但用途不限于此类应用。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This specification covers an ethylene propylene (EPDM) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes other than o-rings.These products have been used typically for seals and gaskets for use from -55 to +70 \mDC (-67 to +158 \mDF) in hydrazine-base fluids, but usage is not limited to such applications.