Lovibond is a registered trademark of the Tintometer Group. Tintometer is the only manufacturer in the world that produces Lovibond brand colorimeters. The Lovibond color standard is widely used in transparent products, including oils, liquid chemical reagents, and syrups, as well as for measuring opaque samples such as fats and gelatinous substances. The advanced Lovibond visual colorimeter of Model F adopts the Lovibond chromaticity standard that has been in use for a hundred years, and its modern process technology improves the traditional visual colorimetric method. The Lovibond chromaticity standard is based on a series of precisely calibrated colored glass filters, including red, yellow, and blue, with colors ranging from light to dark. Various combinations of colored filters can match almost all sample colors.