11.3.4.1-6 Work Surface Depth Allowances
The work surface depth should allow the following:
- positioning the visual display for a minimum viewing distance of 50 cm (19.7 in.)
- positioning the visual display so that the angle between the horizontal level of the eyes and the center of the screen is in the range between a minimum of minus 15 degrees and a maximum of minus 25 degrees
- positioning the entire user viewing area (e.g., including the keyboard) in an arc 60 degrees below the horizontal eye level 100