本文件规定了核电厂金属管道上使用液氮或干冰作为制冷剂（低温介质）的冰塞技术的要求。冷冻液可以是水或水混合物（例如硼酸混合物）。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies requirements for the ice plug technique with liquid nitrogen or dry ice as refrigerant (cryogenic medium) on metal pipes of nuclear power plants. The freezing liquid can be water or water mixture (e.g. boric acid mixture).All current amendments available at time of purchase are included with the purchase of this document.