本推荐标准旨在促进液压系统的可靠密封。 它确定了外部泄漏的常见来源和原因，并建议采取预防措施 已知有效的措施。使用这些做法将有助于消除外部影响 液压设备泄漏。

This recommended standard is intended to promote reliable sealing of hydraulic systems. It identifies common sources and causes of external leakage and recommends preventive measures known to be effective. Use of these practices will help to eliminate external leaks in hydraulic equipment.