DIN EN ISO 19232-2-2013 无损检测.辐射摄影的图像质量.第2部分:利用阶梯/孔型图像质量指示器的图像质量值测定(ISO 19232-2-2013).德文版本EN ISO 19232-2-2013
Non-destructive testing - Image quality of radiographs - Part 2: Determination of the image quality value using step/hole-type image quality indicators (ISO 19232-2:2013); German version EN ISO 19232-2:2013