Diffuse plus regular transmission.
Standards close to the color of the specimens being measured. These are the same as hitch standards.
The property of a material by which a major portion of the transmitted light undergoes scattering.
Process by which incident light is transmitted through an object.
The property of a material by which a negligible portion of the transmitted light undergoes scattering.
A color scale or color solid in which the differences between points correspond to the perceptual visual differences between the colors represented by these points.
The distance, measured along the line of propagation, between two points that are in phase or on adjacent waves. Wavelength distribution determines the color of light. Wavelengths of visible light range from about 380 nm to about 780 nm.
View a demonstration on how to measure the color difference between a pair of samples and see what the values mean.
UltraScan VIS is a visible-range, high-performance color measurement spectrophotometer that measures the full range of human color perception. It can be used in production and in the laboratory.
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The USP and EP Color Standards are visual color standards, intended to improve color communication between sites by defining a sample color as being close to physical liquid standard ("near USP F"; "near EP Y2") rather than using words ("light yellow"). Read Vol. 20, No. 8 (PDF)
