Measurement and Specification of the Physical Factors Which Determine the Saturation of Certain Tints of Yellow (Classic Reprint)

A practical method for defining yellow tint limits by light reflectance

A clear, testable approach shows how to describe a tint’s color without relying on subjective color names. This edition explains a physical standard that helps ensure consistent color in edible fats, using measurable light properties rather than impressions.

The book explains the key factors that influence color perception, and then presents a specific, repeatable specification. It focuses on the diffuse reflecting power of samples for blue and yellow light, and explains how to compare these powers to control saturation of yellow tints. It also describes the apparatus and practical steps to run the test, with careful notes on sample preparation and interpretation.

• Understand the science behind color appearance: illumination, material reflectance, and observer color vision.
• Learn a concrete, non-ambiguous specification based on reflecting power for blue versus yellow light.
• See step-by-step instructions for preparing samples, adjusting equipment, and taking measurements.
• Discover how the results translate to a simple pass/fail criterion for yellow tint saturation.

Ideal for readers working with color standards in food fats and related products, and for professionals seeking a rigorous, instrument-based approach to color specification.