本文件用于通过伽马射线扫描法进行无损检测，用于工业中的故障排除和工艺柱测试。本文件适用于各种分离过程、塔和管道的测试。这包括具有不同塔板配置和填充床的塔。

This document is used for non-destructive testing by the gamma ray scanning method for troubleshooting and testing process columns in industries. This document is applicable to the testing of all kinds of separation processes columns and pipes. This includes columns with different tray configurations and with packed beds.