ICUMSA Method GS2/3-9 (2005)
Material: Speciality Sugar, White Sugar
Analytes: Colour in solution
Method Technique: Spectrophotometry
Abstract:
This method is suitable to determine the colour of the sugar in solution for white and speciality sugars that can be filtered by the method described.
The colour of the solution is measured at pH 7.0 by use of a TEA/HCl buffer. The method has Official Status for sugar solutions up to a colour of 600 IU.
For sugars below 50 IU, the absolute difference between two results obtained under repeatability conditions should not be greater than 3 IU and under reproducibility conditions not greater than 7 IU.
For sugars between 50 and 200 IU, the absolute difference between two results obtained under repeatability conditions should not be greater than 9 IU and under reproducibility conditions not greater than 22 IU.
For sugars between 200 and 600 IU, the absolute difference between two results obtained under repeatability conditions should not be greater than 44 IU and under reproducibility conditions not greater than 109 IU.
Online Access to ICUMSA Method GS2/3-9 (2005)
Access to the online Version of ICUMSA Method GS2/3-9 (2005) 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.).