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Single ICUMSA® Methods are only offered digitally. The subscription license includes two year access to the method, which can be read on sugarindustry.info.
The Method cannot be downloaded, shared or duplicated. Please note the Copyright, Licensing and Trademark Policy of ICUMSA© and Bartens.
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The method measures the reducing power of solutions of white sugar containing reducing substances e. g. invert sugar in a weak alkaline solution of a Cu++ complex with tartrate. It is suitable for white sugar and plantation white sugar containing up to 0.089 g/100 g of reducing sugars. The method has Official Status but, if a choice is available, ICUMSA® recommends that Method GS2-5 is used preferentially. For white sugars and plantation white sugars containing between 0.007 g/100 g and 0.089 g/100 g reducing sugars, the absolute difference between two results obtained under repeatability conditions should not be greater than 0.006 g/100 g and under reproducibility conditions not greater than 0.011 g/100 g.
Please click here to open ICUMSA Method GS2/9-6 (2011).