This method determines the photometric grade of white sugar in relation to the Braunschweig colour-types (primary standard) or ceramic tiles (secondary standard) by measurement of the ratio of reflectance at two different wavelengths. [1,2,3,4,5,10]
Access to the online Version of ICUMSA Method GS2-13 (2017) can be obtained from the Sugar Industry Website, operated by Bartens. The online access for two years costs EUR35 (+ 19 % VAT for German and EU citizens without EU VAT No.).