DS EN 12544-2:2000
DS EN 12544-2:2000 Non-Destructive Testing - Measurement And Evaluation Of The X-Ray Tube Voltage - Part 2: Constancy Check By The Thick Filter Method Defines a constancy check of a X-ray system where mainly the X-ray voltage is checked and also the tube current and the constitution of the target which can be changing due to ageing of the tube.