该欧洲标准定义了根据ISO 3069将（旋转）弹簧单元内置于泵密封腔内的单个和多个机械密封的内部安装尺寸，作为根据EN 22858和EN 733的离心泵典型的最小腔体尺寸。它还给出了使用的密封名称和材料代码

This European Standard defines the principal dimensions for the internal installation of single and multiple mechanical seals with (rotating) spring units into the pump sealing cavity according to ISO 3069 as minimum cavity dimensions as typical for centrifugal pumps in accordance with EN 22858 and EN 733. It also gives the seal designations and material codes to be used.