Typical Citrus Numbers are as follows:
OJ1 - 46.0
OJ2 - 40.4
OJ3 - 38.7
OJ4 - 37.3
OJ5 - 36.3
OJ6 - 33.7
These standards are assigned values at HunterLab using a ratio hitch method. If the batch to batch color of the standard changes then the calibrated Citrus Number to will also change. Values are typically within +/- 0.3 of the values listed above for the OJ standards.
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