First Issued 2002, Last Revised 2004, Last Rewritten 2009-11-01
This method is applicable to all raw sugars [1,2] (General Subject 1), white sugars and specialty sugars requiring clarification (General Subjects 2 and 3) [3]. It is an alternative to Method GS1/2/3-1 which permits the elimination of clarification with basic lead acetate by using polarimeters with light sources operating in the near infrared (NIR) wavelength range. Such polarimeters are able to read solutions with much higher colour than hitherto.
Access to the online Version of ICUMSA Method GS1-2 (2022) 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.).