AS ISO 12646 pdf download Graphic technology—Displays for colour proofing—Characteristics and viewing conditions The refresh rate non-interlaced, shall be at least 80 Hz 4.4 Uniformity of luminance The display should be visually uniform when displaying flat white, grey and black images. When measured asdescribed in 5.3, all luminance values should be within 5 % of the luminance of the centre...