Abstract: This method determines the photometric grade of white sugar in relation to the Braunschweig colour-types by measurement of the ratio of reflectance at two different wavelengths.
The Photometer used is calibrated using either Braunschweig Colour Standards (primary standard) or Ceramic Tiles (secondary standard).
For sugars having colour type values < 4.85, the absolute difference between two results obtained under repeatability conditions should not be greater than 0.14 and under reproducibility conditions not greater than 0.55.
Online Access to ICUMSA Method GS2-13 (2017)
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.).