X射线数字成像检测是无损检测新技术，GB 17925—1999《气瓶对接焊缝X射线实时成像检测》在气瓶行业已有十多年的成功应用。在总结经验的基础上，对GB 17925—1999标准进行修订时，该标准被更名为GB/T 17925—2011《气瓶对接焊缝X射线数字成像检测》，并增加不少新内容。本次修订以系统控制理论指导数字成像检测图像的评定、存储和传输。新标准理论基础深厚，具有较强条理性、完整性和可操作性。

X-ray digital radiography examination is a new technology of non-destructive testing(NDT), and GB 17925—1999 Standard Practice for X-ray Real-time Examination of Cylinders Weld is the national standard for the cylinder industry with more than ten years successful application. On the basis of the passed experiences, the revision of GB/T 17925—2011 Standard Practice for X-ray Digital Radiography Examination of Cylinders Weld was issued, which a lot of new content was added. The revise of image, storage and transmission in the standard was guided with our System Control Theory so that the standard was more with strong clarity, completeness and operability.