Ricca Chemical USP Colorimetric Standards

Capitol Scientific offers the full line of Ricca Chemical's USP Colorimetric standards for your laboratory. The U.S. Pharmacopoeia Reference for these colorimetric standards is: USP-24 Monograph 631 Color and Achromaticity.

The United States Pharmacopoeia visual colorimetric standards (or color standards) are comprised of fifteen (15) matching liquid color standards (Marked "A" through "T"). These color standards are manufactured with one of three primary reagent solutions. (Either Cobaltous Choride, Cupric Sulfate or Ferric Chloride) and dissolved in to distilled water in a variety of ratios.

These are visual color standards which are used to improve color communication between different locations by simply defining a sample's color as being very close to physical liquid standard "Near USP F" rather than using the wording "Light Yellow".