Paragraph 4 Notes
The power density is the maximum level averaged over any 20cm2 of exposed area. Spatial maximum power densities averaged over 1cm2 shall not exceed 20 times the value of 50 Wm-2.
The power density is the maximum level averaged over any 20cm2 of exposed area. Spatial maximum power densities averaged over 1cm2 shall not exceed 20 times the value of 50 Wm-2.