In 2021 on a DGZfP FA D meeting it was decided to create a guideline for usage of monitors for evaluation and analysis of digital radiographs. Some companies provide X-ray inspection machines and add a simple and cheap monitor for image analysis - which is then the weakest link in the chain. On the other hand some users of X-ray machines required expensive medical DICOM monitors for image analysis. The task was to evaluate the required monitor qualities for different inspection tasks and to give a guideline, what should be used for what application. One year later the rough content was presented and voted on in the FA D. The table of contents was derived from this. In the following some studies were done on comparisons to film viewers, on different monitor techniques, on medical monitors compared to DTP monitors and on 10 or even 12 Bit resolution. The results are presented here in this forum.

In the preface it is stated:
The digitization of industrial radiographic imaging now encompasses the entire image processing chain, from the geometry of image acquisition to the image detection system and image processing to the display of images for evaluation and assessment on a monitor. The display of digital X-ray images depends significantly on the quality of the monitor systems and the environmental conditions at the monitor location.
This guideline is intended for evaluators and assessors of industrial radiographic two- and three-dimensional image data on a monitor, both for analysis (evaluation) and assessment. It applies when relevant decisions about the quality of the tested objects are to be made based on the monitor image.
This guideline takes into account the different radiographic tests with their different requirements for the quality of the evaluation. Quality requirement classes are defined for this purpose. The environment in which the evaluation is to take place is divided into room classes. Extreme examples of this are the evaluation of image data on a monitor in series production in a factory hall with rod-shaped ceiling lighting or, on the other hand, in a darkened, separate room with defined lighting conditions.
No distinction is made here between viewing two-dimensional images or three-dimensional images in volume; the guideline applies to both types.