Description
Formerly: The Determination of Sugar Solution Colour at pH 7.0 – Accepted
This Method is suitable for determination of the colour in all crystalline and powdered sugars having a colour less than or equal to 600 ICUMSA Units (IU). The absorbance of a filtered solution at pH 7.0 is measured at 420 nm in a spectrophotometer. A TEA/HCl buffer is used to adjust the pH of the solution. The Method has Accepted Status and if a choice of Method is available then ICUMSA recommends that Method GS9-8 is used preferentially. For sugars less than or equal to 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.
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Conditions of Use
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.
Access to Method
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Method Abstract
Please click here to open ICUMSA Method GS2-9 (2024).
