ASTM D 1729-96-2003 Visual Evaluation of Color and Color Difference of Opaque Materials under Scattered Light, which stipulates a standard method for visual evaluation of Color and color difference of opaque materials under scattered light conditions. The standard specifies the setting of the scattered light illumination environment, the requirements of observers, standardizes the preparation and comparison process of samples, and determines the Color characteristics and color difference of opaque materials through visual observation and comparison by professionals, providing a unified visual detection basis for scientific evaluation of material Color mass.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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