M00004698
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GMW6992 4th Edition, March 2020 Visual Appearance Assessment
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Availability date: 03/08/2022
Description / Abstract:
GMW6992, 4th Edition, March 2020 - Visual Appearance Assessment
Purpose.
This standard describes the recommended practice for controlled lighting, viewing equipment, viewing conditions and examination procedures to be used when evaluating visual match-to and appearance change.