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The current AOCS Automated method of assessing the color of refined fats and oils requires that the oils are visually free of turbidity (particulates and moisture), because the clarity of the oil affects the color result. They require the user to do a visual assessment prior to doing an automatic filter selection determination.
Turbidimeters are instruments that can objectively determine clarity of oils and Spectrophotometers can provide objective color results using cell pathlengths of 10mm to 20mm that correlate with current 5.25in cells.
Advances in instrument design such as the Vista enable a user to prepare a single sample and record both Turbidity and Color from a single measurement. These instruments remove the subjectivity inherent in human eyesight from the inspection process resulting in more complete and more consistent reporting year after year.
