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Instrumental measurements of color and color difference are critical to color identification and color matching. Measurements can be used to compare materials exposed to surface/aging treatments, assess color stability, or compare products from different sources or processes. We have petrographers with substantial training and experience in color theory and measurement.,virgin fucks

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hot saxy com,Visual estimations of color can be made using the ISCC–NBS System of Color Designation and/or the Munsell color system, although color perception varies between observers and lighting conditions.